Manufacturing method for lightweight cement, the lightweight cement produced thereby, its sidewalk tile building material structure, its lightweight partition building material structure, and its lightweight floor building material structure

Abstract

A method for manufacturing lightweight cement, the lightweight cement produced therefrom, a sidewalk paving material structure therefrom, a lightweight partition material structure therefrom, and a lightweight floor slab material structure therefrom. The method for manufacturing lightweight cement includes a mixing step, a pre-processing step, and a blending step. The lightweight cement produced by the method of this invention has a density of less than 1500 kg / m³.

Description

[Technical Field]

[0001] This invention relates to a method for manufacturing lightweight cement, particularly a method for manufacturing lightweight cement, the lightweight cement manufactured therefrom, its sidewalk paving material structure, its lightweight partition material structure, and its lightweight floor slab material structure. [Previous Technology]

[0002] With the gradual improvement of construction regulations and the popularization of the concept of lightweight and multifunctional building materials, people's requirements for the lightweight, heat insulation and sound insulation effects of building materials are gradually increasing.

[0003] Building materials include sidewalk paving brick building materials structure, lightweight partition building materials structure, and lightweight floor building materials structure.

[0004] I. Regarding the construction of sidewalks:

[0005] Floor tiles are widely used to provide a sturdy and aesthetically pleasing walking surface. However, existing floor tile systems still have several problems and urgently need improvement to meet practical needs and promote environmental protection.

[0006] First, the installation of traditional sidewalk tiles is prone to tiles falling off or protruding. This is usually due to uneven ground surface, insecure tile installation, or wear and tear during long-term use. Falling tiles not only affect the appearance of the sidewalk but also pose a threat to pedestrian safety, easily causing falls.

[0007] Secondly, traditional paving tile systems are prone to water accumulation after rainfall. Due to poor grout design between the tiles, rainwater cannot drain effectively, leading to water accumulation. This not only affects pedestrian safety but may also accelerate tile damage, further impacting the durability of the sidewalk.

[0008] In addition, the manufacturing and processing of traditional floor tile materials often impose a burden on the environment. Many common floor tile materials involve a large amount of energy consumption and waste generation during production, which is not friendly to the needs of modern construction with high environmental protection requirements.

[0009] To solve the aforementioned problems, a manufacturer has developed a Taiwan patent M470115 for a modular pedestrian paving brick device. It uses a snap-fit ​​assembly to prevent the pedestrian paving bricks from detaching and protruding. However, its structure is complex and has problems such as manufacturing costs, complicated assembly, and difficulty in replacement.

[0010] Figure 1 is a three-dimensional assembly diagram of a conventionally used paving brick.

[0011] Another manufacturer has developed a Taiwan patent for improved sidewalk brick structure, M248804. As shown in the three-dimensional combination diagram of the conventional technology in Figure 1, it is made from granite waste and consists of a square brick (91) with four positive sides and four hexagonal rhombus bricks (92) with two positive sides and four diagonal sides. The structure of the sidewalk brick can be strengthened by assembling the square brick (91) and the rhombus brick (92). However, the structure is not uniform. The materials need to be differentiated in appearance. The material source is limited to granite waste. It is only a waste recycling method. From an environmental perspective, it is not as widely used as recycled resources. Moreover, it does not have drainage or waterproofing function. It cannot solve the problem of water accumulation when it rains.

[0012] II. Regarding lightweight partitions:

[0013] Currently, to produce sufficient sound insulation in conventional lightweight partitions, it is necessary to fill the lightweight partitions with sound-absorbing cotton. However, this method is very unfriendly to workers, and the glass fiber contained in the sound-absorbing cotton is harmful to the body.

[0014] Another common practice is to use hollow bricks as wall construction material for lightweight partitions. The hollow structure of hollow bricks reduces the weight of the building materials and blocks the conduction of heat and sound to achieve the expected sound insulation and heat insulation performance. However, existing hollow brick structures, regardless of the internal hollow shape, are all flat or dovetailed in appearance. After the bricks are laid, the wall surface cannot be combined with the beam and column structure, resulting in reduced seismic resistance and difficult construction. Connecting the bricks is also time-consuming and laborious.

[0015] For example, Taiwan’s patent No. I604112 for green building materials lightweight partition ceramic bricks adopts a dovetail groove structure. However, this structure must be inserted from the side. If there are door frames or other construction methods, the priority order must be arranged first. Moreover, after the bricks are laid, there is also the problem of whether the contact surface with the ceiling is tight.

[0016] Furthermore, taking the brick wall of a partition as an example, the traditional construction method involves hiring skilled workers to carry out tasks such as layout, bricklaying, finishing, and plastering step by step. While the skilled workers are working, unskilled workers (laborers) are mixing materials such as cement and sand. However, this traditional construction method can result in uneven brick wall surfaces due to varying skill levels among the skilled workers, further increasing the time and cost of leveling later. For example, Taiwan Patent 365620, which describes a brick wall construction method, falls under this traditional construction method.

[0017] Furthermore, traditional cement construction methods, with a density between 2,400 and 2,500 kg / m³, not only cause inconvenience and increased costs in transportation, labor, and construction, but also increase the load on the building structure, which is not in line with current green building trends and standards. As for the use of illegal or substandard construction methods such as polystyrene foam, cement foaming agents, or even PET bottles, these are not within the scope of this discussion.

[0018] III. Regarding the floor:

[0019] Currently, to achieve sufficient sound insulation in a floor slab, an adhesive layer needs to be laid on the cement layer, followed by a sound insulation blanket, and finally covered with cement mortar. This allows the sound insulation blanket to create a soundproofing effect, isolating sound from different floors. However, this method is not only complex but also involves multiple layers, making it difficult to reduce weight. More importantly, the drying shrinkage of the adhesive layer creates shrinkage stress on the cement layer, causing some areas of the cement layer to sink. Since the sound insulation blanket is made of a blanket material, these sinkholes cannot be filled, resulting in voids between the cement layer and the sound insulation blanket. When the cement mortar is laid, these voids can cause poor adhesion and cracking. They are also easily damaged by stress generated during construction, raising safety concerns and requiring improvement.

[0020] Accordingly, due to the above and other issues, there is still room for improvement in the prior art. [Summary of the Invention]

[0021] In order to solve the above and other problems, the main purpose of this invention is to provide a method for manufacturing lightweight cement, the lightweight cement manufactured therefrom, a sidewalk paving material structure therefrom, a lightweight partition material structure therefrom, and a lightweight floor material structure therefrom, so as to improve the prior art.

[0022] Firstly:

[0023] In order to solve the above and other problems, the main purpose of this invention is to provide a method for manufacturing lightweight cement to improve the prior art.

[0024] To achieve the aforementioned and other inventive objectives, this embodiment of the invention provides a method for manufacturing lightweight cement, comprising: taking a plurality of superabsorbent polymer granules and a cement mortar, such that the weight percentage of the superabsorbent polymer granules is 0.1% to 5%, and the weight percentage of the cement mortar is 95% to 99.9%; soaking the superabsorbent polymer granules in water, causing the volume of the superabsorbent polymer granules to expand by 10 to 70 times; and adding the expanded superabsorbent polymer granules to the cement mortar and mixing.

[0025] In one embodiment, the material of the superabsorbent polymer granules is selected from sodium polyacrylate or sodium polycarboxylate.

[0026] In one embodiment, the cement mortar contains a plurality of debris, the material of which is rubber, polyethylene terephthalate, microcrystalline wood, or ceramsite.

[0027] In one embodiment, an adhesive may be mixed into the cement mortar to increase the bonding between heterogeneous materials.

[0028] In one embodiment, the adhesive is a nonionic or anionic water-based latex.

[0029] In one embodiment, the waterborne latex is selected from polyurethane, ethylene vinyl acetate copolymer, polyurethane acrylate, polyacrylate, acrylate-butadiene rubber, chloroprene rubber, or styrene-butadiene rubber.

[0030] In one embodiment, it further includes adding a cement mortar additive or a water-reducing agent to the mixed cement mortar.

[0031] In one embodiment, the cement mortar additive includes a waterproofing additive.

[0032] In one embodiment, the method of manufacturing the lightweight cement further includes: laying and curing the mixed cement mortar, and waiting for the highly absorbent polymer particles to shrink and form a plurality of pores in the cement mortar to form a structural body with a density of less than 1500 kg / m³.

[0033] Secondly:

[0034] To solve the above and other problems, the main purpose of this invention is to provide a lightweight cement to improve upon prior art.

[0035] To achieve the aforementioned and other creative objectives, this embodiment of the invention provides a lightweight cement, which is manufactured by the aforementioned method for manufacturing lightweight cement and has a density of less than 1500 kg / m³.

[0036] Thirdly:

[0037] To solve the above and other problems, the main purpose of this invention is to provide a sidewalk paving material structure to improve upon prior art.

[0038] One purpose of this invention is to provide a sidewalk paving material structure that can store or divert moisture.

[0039] Another objective of this invention is to provide a pedestrian paving material structure that can reduce the weight of the building materials.

[0040] Another objective of this invention is to provide a pedestrian walkway paving material structure that can improve construction efficiency.

[0041] Another objective of this invention is to provide a sidewalk paving material structure that has a cushioning effect.

[0042] To achieve the aforementioned and other creative objectives, this embodiment of the invention provides a sidewalk paving material structure, comprising: a structural body with a density of less than 1500 kg / m³, the structural body comprising a cement mortar of 95% to 99.9% by weight, and a plurality of highly absorbent polymer granules distributed in the cement mortar of 0.1% to 5% by weight, wherein the cement mortar has a plurality of pores, and the volume expansion rate of the highly absorbent polymer granules after absorbing water is 10 to 70 times, wherein the plurality of pores are used to store or drain water.

[0043] In one embodiment, the sidewalk paving material structure may be further impregnated with a highly absorbent polymer granule destructor, such as an alkaline cement additive or an acidic cement additive.

[0044] In one embodiment, the cement mortar contains a plurality of debris, the debris being made of rubber, polyethylene terephthalate, microcrystalline wood, or ceramsite.

[0045] In one embodiment, the cement mortar contains an adhesive resin, which is a nonionic or anionic water-based latex.

[0046] In one embodiment, the adhesive resin is selected from polyurethane, ethylene vinyl acetate copolymer, polyurethane acrylate, polyacrylate, acrylate-butadiene rubber, chloroprene rubber, and styrene-butadiene rubber.

[0047] In one embodiment, the structure may optionally include an anti-seismic layer disposed on one side surface of the main body of the structure, the anti-seismic layer comprising 50 to 80 weight percent of anti-seismic particles, 10 to 30 weight percent of resin and sufficient amount of water not equal to 0.

[0048] In one embodiment, the seismic-resistant layer has a flow channel for guiding water, and the flow channel is disposed between the seismic-resistant fragments.

[0049] In one embodiment, the shock-absorbing fragments are made of rubber.

[0050] In one embodiment, the resin is selected from polyurethane, ethylene vinyl acetate copolymer, or polyacrylate.

[0051] In one embodiment, the superabsorbent polymer granules are embedded in the pores, and the maximum outer diameter of the superabsorbent polymer granules is less than or equal to the minimum inner diameter of the corresponding pore.

[0052] In one embodiment, the material of the superabsorbent polymer granules is selected from sodium polyacrylate or sodium polycarboxylate.

[0053] Fourthly:

[0054] One objective of this invention is to provide a lightweight partition building material structure that can improve sound insulation and eliminate the need for sound insulation cotton. In order to solve the above and other problems, the main objective of this invention is to provide a lightweight partition building material structure to improve the prior art.

[0055] One purpose of this invention is to provide a lightweight partition building material structure that can improve sound insulation and eliminates the need to lay sound insulation cotton.

[0056] Another objective of this invention is to provide a lightweight partition building material structure that can reduce the weight of building materials.

[0057] Another objective of this invention is to provide a lightweight partition building material structure that can improve construction efficiency.

[0058] Another objective of this invention is to provide a lightweight partition building material structure that is waterproof.

[0059] Another objective of this invention is to provide a lightweight partition building material structure that has a cushioning effect.

[0060] To achieve the aforementioned and other creative objectives, this embodiment of the invention provides a lightweight partition building material structure, comprising: a structural body with a density of less than 1500 kg / m³, the structural body comprising a cement mortar of 95% to 99.9% by weight, and a plurality of highly absorbent polymer granules distributed in the cement mortar of 0.1% to 5% by weight, wherein the cement mortar has a plurality of pores, and the volume expansion rate of the highly absorbent polymer granules after absorbing water is 10 to 70 times.

[0061] In one embodiment, the superabsorbent polymer granules are embedded in the pores, and the maximum outer diameter of the superabsorbent polymer granules is less than or equal to the minimum inner diameter of the corresponding pore.

[0062] In one embodiment, the density of the main structure is less than 1200 kg / m³. Preferably, the density of the main structure is less than 800 kg / m³. More preferably, the density of the main structure is 760 kg / m³.

[0063] In one embodiment, the cement mortar contains a plurality of spherical silicon dioxide obtained by reprocessing a silicon-containing waste.

[0064] In one embodiment, the lightweight partition building material structure further includes two plaster layers, which are disposed on opposite sides of the main body of the structure, wherein the thickness measured from the surface of one plaster layer to the surface of the other plaster layer is less than ten centimeters.

[0065] In one embodiment, the cement mortar contains a plurality of debris, the debris being made of rubber, polyethylene terephthalate, microcrystalline wood, or ceramsite.

[0066] In one embodiment, the cement mortar contains an adhesive resin, which is a nonionic or anionic water-based latex.

[0067] In one embodiment, the adhesive resin is selected from polyurethane, ethylene vinyl acetate copolymer, polyurethane acrylate, polyacrylate, acrylate-butadiene rubber, chloroprene rubber, and styrene-butadiene rubber.

[0068] In one embodiment, the cement mortar contains a cement mortar additive, which includes a waterproofing additive.

[0069] In one embodiment, the material of the superabsorbent polymer granules is selected from sodium polyacrylate or sodium polycarboxylate.

[0070] In one embodiment, the lightweight partition building material structure further includes a sound insulation layer disposed between the two main structural bodies. The sound insulation layer contains 50 to 80 parts by weight of sound-absorbing particles, 10 to 30 parts by weight of resin, and sufficient amount of water that is not zero.

[0071] In one embodiment, the thickness of the sound insulation layer is 5 to 20 mm, and the particle size of the sound-reducing particles is 1 to 20 mm.

[0072] In one embodiment, the noise-reducing particles are made of rubber.

[0073] In one embodiment, the resin is selected from polyurethane, ethylene vinyl acetate copolymer, or polyacrylate.

[0074] In one embodiment, the lightweight partition building material structure further includes two plaster layers, which are disposed on opposite sides of different structural bodies, wherein the thickness measured from the surface of one plaster layer to the surface of the other plaster layer is less than ten centimeters.

[0075] In one embodiment, the lightweight partition building material structure further includes two reinforcing plates, which are covered on opposite sides of the main body of the structure.

[0076] In one embodiment, the lightweight partition building material structure further includes two reinforcing plates, which are covered on opposite sides of different structural bodies.

[0077] In one embodiment, the second reinforcing board is a gypsum board, cement board, fiber cement board, fiber reinforced cement board, wood-based cement board, magnesium oxide board, or hard fiberboard.

[0078] In one embodiment, the air noise insulation index Rw of the lightweight partition building material structure is greater than or equal to 45 decibels.

[0079] In one embodiment, the lightweight partition building material structure conforms to the high-performance green building material (sound insulation) of the Green Building Materials Label.

[0080] Fifth:

[0081] To achieve the aforementioned and other creative objectives, this embodiment of the invention provides a lightweight floor building material structure, comprising: a structural body with a density of less than 1500 kg / m³, the structural body comprising a cement mortar of 95% to 99.9% by weight, and a plurality of highly absorbent polymer granules distributed in the cement mortar of 0.1% to 5% by weight, wherein the cement mortar has a plurality of pores, and the volume expansion rate of the highly absorbent polymer granules after absorbing water is 10 to 70 times.

[0082] In one embodiment, the superabsorbent polymer granules are embedded in the pores, and the maximum outer diameter of the superabsorbent polymer granules is less than or equal to the minimum inner diameter of the corresponding pore.

[0083] In one embodiment, the cement mortar contains a plurality of debris, the material of which is rubber, polyethylene terephthalate, microcrystalline wood or ceramsite.

[0084] In one embodiment, the cement mortar contains an adhesive resin, which is a nonionic or anionic water-based latex.

[0085] In one embodiment, the adhesive resin is selected from polyurethane, ethylene vinyl acetate copolymer, polyurethane acrylate, polyacrylate, acrylate-butadiene rubber, chloroprene rubber, and styrene-butadiene rubber.

[0086] In one embodiment, the cement mortar contains a cement mortar additive, which includes a waterproofing additive.

[0087] In one embodiment, the material of the superabsorbent polymer granules is selected from sodium polyacrylate or sodium polycarboxylate.

[0088] In one embodiment, the aforementioned lightweight floor building material structure further includes a sound insulation layer disposed under the main body of the structure. The sound insulation layer contains 50 to 80 parts by weight of sound-absorbing particles, 10 to 30 parts by weight of resin, and sufficient amount of water that is not zero.

[0089] In one embodiment, the thickness of the sound insulation layer is 5 to 20 mm, and the particle size of the sound-reducing particles is 1 to 20 mm.

[0090] In one embodiment, the noise-reducing particles are made of rubber.

[0091] In one embodiment, the resin is selected from polyurethane, ethylene vinyl acetate copolymer, or polyacrylate.

[0092] In one embodiment, the lightweight partition building material structure conforms to the high-performance green building material (sound insulation) of the Green Building Materials Label.

[0093] The directions or similar terms used herein, such as front, back, left, right, top, bottom, inside, outside, side, etc., are mainly for reference to the diagrams and are used only to assist in explaining and understanding the various embodiments of this invention, and are not intended to limit this invention. Furthermore, the articles used for elements or components described herein, such as "a" or "the," are for simplification only and should be interpreted in this invention as including one or at least one, and a single concept also includes plural cases, unless otherwise clearly intended to the contrary.

Implementation Method

[0095] To make the above and other objects, features and advantages of this invention more apparent and understandable, preferred embodiments are described below in conjunction with the accompanying drawings. Symbols that are indicated by the same symbols in different drawings are considered identical and their descriptions may be omitted.

[0096] I. Regarding the manufacturing method of lightweight cement:

[0097] Figure 2 is a schematic diagram of the steps in the manufacturing method of lightweight cement according to the embodiment. Please refer to Figure 2.

[0098] The method for manufacturing lightweight cement in this embodiment includes: a mixing step (S0), taking a plurality of superabsorbent polymer granules and a cement mortar, such that the weight percentage of the superabsorbent polymer granules is 0.1% to 5% and the weight percentage of the cement mortar is 95% to 99.9%; a preparatory step (S1), soaking the plurality of superabsorbent polymer granules in water, causing the volume of the superabsorbent polymer granules to expand by 10 to 70 times; and a mixing step (S2), adding the expanded superabsorbent polymer granules to the cement mortar and mixing. The blocks above and below the steps shown in Figure 2 do not represent the order of steps and are only for flow reference.

[0099] Figure 3 is another schematic diagram of the steps of the manufacturing method of lightweight cement according to the embodiment. Please refer to Figure 3.

[0100] This embodiment has the same steps (S0) to (S2) as in Figure 2. In the mixing step (S2), the process of adding the expanded superabsorbent polymer granules to a cement mortar for mixing includes a mixing adhesive step (S21), in which the expanded superabsorbent polymer granules are mixed with an adhesive and then added to the cement mortar for mixing. The upper and lower step blocks shown in Figure 3 do not represent the order of steps and are only for process reference.

[0101] In the embodiments, the materials of these superabsorbent polymer granules are selected from sodium polyacrylate or sodium polycarboxylate.

[0102] In the embodiment, the cement mortar contains a plurality of debris, the material of which is rubber, polyethylene terephthalate, microcrystalline wood, or ceramsite.

[0103] In the embodiment, the adhesive is a nonionic or anionic water-based latex to strengthen the cement mortar mixed with the aforementioned plurality of debris.

[0104] In the embodiments, the waterborne latex is selected from polyurethane, ethylene vinyl acetate copolymer, polyurethane acrylate, polyacrylate, acrylate-butadiene rubber, chloroprene rubber, or styrene-butadiene rubber.

[0105] In the embodiment, an addition step (S31) is further included, in which a cement mortar additive is added to the mixed cement mortar.

[0106] In an embodiment, the cement mortar additive includes a waterproofing additive.

[0107] In the embodiment, a casting step (S32) is further included, in which the mixed cement mortar is laid and cured, and the highly absorbent polymer particles shrink to form a plurality of pores in the cement mortar, so as to form a structural body with a density of less than 1500 kg / m³.

[0108] II. Regarding lightweight cement:

[0109] This embodiment provides a lightweight cement, which is manufactured by the aforementioned lightweight cement manufacturing method and has a density of less than 1500 kg / m³.

[0110] III. Regarding the structure of sidewalk paving materials:

[0111] Figure 4 is a schematic diagram of the sidewalk paving material structure of the embodiment. Figure 5 is an enlarged schematic diagram of the rainwater diversion of the seismic layer of the embodiment. Please refer to Figure 4 or Figure 5.

[0112] A sidewalk paving material structure according to this embodiment includes: a structural body (111) with a density of less than 1500 kg / m³, the structural body (111) including a cement mortar (1112) of 95% to 99.9% by weight, and a plurality of highly absorbent polymer granules (1113) distributed in the cement mortar of 0.1% to 5% by weight, wherein the cement mortar (1112) has a plurality of pores (1111), and the volume expansion rate of the highly absorbent polymer granules (1113) after absorbing water is 10 to 70 times, wherein the plurality of pores (1111) are used to store or drain water.

[0113] Preferably, the cement mortar (1112) contains an alkaline cement additive. This can break down the superabsorbent polymer granules (1113), preventing them from absorbing water again. The structure of the plurality of pores (1111) is retained after the construction of the sidewalk paving material structure, giving the plurality of pores (1111) the function of storing or diverting water.

[0114] Preferably, the cement mortar (1112) contains a plurality of debris, the material of which is rubber, polyethylene terephthalate, microcrystalline wood, or ceramsite.

[0115] Among them, microcrystalline wood (CELLwood) is formed by foaming thermoplastic elastomers (TPE).

[0116] Preferably, the cement mortar (1112) contains an adhesive resin, which is a nonionic or anionic waterborne latex. Preferably, the adhesive resin is selected from polyurethane, ethylene vinyl acetate copolymer, polyurethane acrylate, polyacrylate, acrylate-butadiene rubber, chloroprene rubber, and styrene-butadiene rubber.

[0117] Preferably, it further includes a seismic layer (112) disposed on one side surface of the main body of the structure (111), the seismic layer (112) comprising 50 to 80 weight percent of seismic fragments (1122), 10 to 30 weight percent of resin (1121) and sufficient amount of water not equal to 0.

[0118] Regarding the method of setting the seismic layer (112) under the main structure (111), for example, cement mortar (1112) mixed with superabsorbent polymer granules (1113) can be poured onto the seismic layer (112), and then allowed to set for 5 to 10 days and cured for about 28 days. After the cement mortar (1112) has solidified, the superabsorbent polymer granules (1113) will also shrink due to the evaporation of water, so that the part of the cement mortar (1112) originally occupied by the superabsorbent polymer granules (1113) becomes pores of different sizes, i.e., holes (1111). Accordingly, a main structure (111) with a density of less than 1500 kg / m³ is formed, which can reduce the weight of building materials.

[0119] Furthermore, the seismic-resistant layer (112) has a flow channel (1123) for diverting water, and the flow channel (1123) is disposed between the seismic-resistant fragments (1122). In this way, while having a buffering effect, rainwater is diverted to the seismic-resistant layer (112) through the plurality of holes (1111) and then diverted to the soil or other places through the flow channel (1123).

[0120] Furthermore, the shock-absorbing particles (1122) are made of rubber. Because rubber has both shock absorption and shock resistance capabilities and does not absorb water, the flow channel (1123) can be formed in the shock-absorbing layer (112) by means of the periphery of different shock-absorbing particles (1122).

[0121] Furthermore, the material of the resin (1121) is selected from polyurethane, ethylene vinyl acetate copolymer, or polyacrylate.

[0122] Preferably, the superabsorbent polymer granules (1113) are embedded in the pores (1111), and the maximum outer diameter of the superabsorbent polymer granules (1113) is less than or equal to the minimum inner diameter of the corresponding pore (1111).

[0123] Because the volume expansion rate of these superabsorbent polymer granules (1113) after absorbing water is 10 to 70 times, these superabsorbent polymer granules (1113) embedded in the cement mortar (1112) will generate pores (1111) in the cement mortar (1112) during the manufacturing stage. After the water evaporates and dehydrates, these superabsorbent polymer granules (1113) shrink, so the maximum outer diameter of each superabsorbent polymer granule (1113) is less than or equal to the minimum inner diameter of its corresponding pore (1111).

[0124] The material of the superabsorbent polymer granules (1113) is selected from sodium polyacrylate or sodium polycarboxylate.

[0125] Preferably, the cement mortar (1112) contains a superabsorbent polymer granule destructor, such as an alkaline cement additive or an acidic cement additive. In other words, if it is desired that the superabsorbent polymer granules (1113) no longer expand when exposed to water, the superabsorbent polymer granule destructor can be added to the cement mortar after it has been molded and cured, so that it no longer expands when exposed to water, thereby increasing the stability after molding.

[0126] In summary, the multiple holes in the main body of the structure can reduce the conduction speed of vibration and heat in the main body of the structure, thereby producing shock absorption and heat absorption effects and guiding rainwater.

[0127] Furthermore, this seismic-resistant layer is an optional feature, and it has the functions of absorbing shock and diverting rainwater. Therefore, when the main structure and the seismic-resistant layer are combined, a better seismic resistance, heat insulation effect, and rainwater diversion effect can be achieved to prevent the sidewalk tiles from falling off or bulging. This invention is not limited to the presence or absence of this seismic-resistant layer.

[0128] Furthermore, the modular design of this invention eliminates the need to wait for the adhesive to dry and the cement mortar to harden. Its lightweight nature and ease of transport significantly reduce the materials and tools required for construction. This modular design also allows for the prefabrication of multiple sidewalk tiles of different sizes conforming to common specifications. Based on site information, the corresponding quantity and size specifications can be transported to the site for direct laying, greatly improving construction efficiency and reducing waste generated during on-site construction.

[0129] IV. Regarding lightweight partitions:

[0130] According to the current building technical regulations in Taiwan, the following specifications apply to the design of soundproofing and sound insulation, including airborne sound insulation design.

[0131] The scope of application for sound insulation design of newly constructed or expanded buildings is as follows: 1. Partition walls in bedrooms, guest rooms, or hospital wards of dormitories, hotels, etc. 2. Partition walls in connected residential buildings and apartment buildings. 3. Partition walls between elevator shafts and rooms in buildings described in paragraph 1, and partition walls between elevator shafts and rooms in buildings described in paragraph 2. 4. Floor slabs separating spaces for housing mechanical equipment from rooms on upper or lower floors.

[0132] Taking the sound insulation structure of the partition wall as an example, it should meet one of the following requirements: 1. Constructed of reinforced concrete or unreinforced concrete with a density of 2,300 kg / m³ or more, with a total thickness including plaster of 10 cm or more. 2. Constructed of red brick or other solid bricks with a density of 1,600 kg / m³ or more, with a total thickness including plaster of 12 cm or more. 3. With a lightweight steel frame or wooden frame as the base, covered on both sides with gypsum board, cement board, fiber cement board, fiber reinforced cement board, wood-based cement board, magnesium oxide board, or hard fiberboard, with a total surface density of 44 kg / m² or more, and the gaps between the boards are filled with glass wool, rock wool, or ceramic wool with a density of 60 kg / m² or more and a thickness of 7.5 cm or more, and the total wall thickness is 10 cm or more. IV. Other high-performance green building materials (sound insulation) that have been approved by the central competent building authority and have an airborne sound insulation index Rw of 45 decibels or above, or that have obtained the Ministry of the Interior's green building material certification.

[0133] As can be seen from the aforementioned regulations, traditional construction methods have higher density and thickness, which will increase the weight of building materials, thereby increasing construction and transportation costs, which is not conducive to the current trend of energy conservation, carbon reduction and green building.

[0134] Therefore, the focus of this embodiment is that it can meet the government's requirement that the air noise insulation index Rw be above 45 decibels, or meet the requirements of the Green Building Materials Label for high-performance green building materials (sound insulation).

[0135] In addition, although there are other relevant regulations regarding the sound insulation construction of the partition wall between the elevator shaft and the living room, and the sound insulation construction of the partition wall between units, their standards are all greater than the sound insulation performance of Rw above 45 decibels. Therefore, the goal of this embodiment is to meet the sound insulation performance of the government-mandated sound insulation index Rw above 45 decibels, or to meet the high-performance green building materials (sound insulation) requirements of the Green Building Materials Label.

[0136] Figure 6 is a schematic diagram of the lightweight partition building material structure of the first embodiment. Please refer to Figure 6.

[0137] The lightweight partition building material structure of this embodiment includes: a structural body (211) with a density of less than 1500 kg / m³, the structural body (211) including a cement mortar (2112) of 95% to 99.9% by weight, and a plurality of highly absorbent polymer granules (2113) distributed in the cement mortar and having a weight percentage of 0.1% to 5%, wherein the cement mortar (2112) has a plurality of pores (2111), and the volume expansion rate of the highly absorbent polymer granules (2113) after absorbing water is 10 to 70 times.

[0138] The density of the main structure (211) is less than 1,500 kg / m³, which is much lighter than that of a typical cement structure with a density of 2,200 to 2,500 kg / m³.

[0139] Preferably, the superabsorbent polymer granules (2113) are embedded in the pores (2111), and the maximum outer diameter of the superabsorbent polymer granules (2113) is less than or equal to the minimum inner diameter of the corresponding pore (2111).

[0140] Because the volume expansion rate of these superabsorbent polymer granules (2113) after absorbing water is 10 to 70 times, these superabsorbent polymer granules (2113) embedded in the cement mortar (2112) have pores (2111) in the cement mortar (2112) during the manufacturing stage. After the water evaporates, these superabsorbent polymer granules (2113) shrink, so the maximum outer diameter of each superabsorbent polymer granule (2113) is less than or equal to the minimum inner diameter of its corresponding pore (2111).

[0141] Preferably, the cement mortar (2112) contains a plurality of debris, the material of which is rubber, polyethylene terephthalate, microcrystalline wood, or ceramsite.

[0142] Among them, microcrystalline wood (CELLwood) is formed by foaming thermoplastic elastomers (TPE).

[0143] Preferably, the cement mortar (2112) contains an adhesive resin, which is a nonionic or anionic water-based latex.

[0144] Preferably, the adhesive resin is selected from polyurethane, ethylene vinyl acetate copolymer, polyurethane acrylate, polyacrylate, acrylate-butadiene rubber, chloroprene rubber, and styrene-butadiene rubber.

[0145] Preferably, the cement mortar (2112) contains a cement mortar additive, which includes a waterproofing additive.

[0146] Preferably, the material of the superabsorbent polymer granules (2113) is selected from sodium polyacrylate or sodium polycarboxylate.

[0147] Figure 7 is a schematic diagram of the lightweight partition building material structure of the second embodiment. Please refer to Figure 7.

[0148] In this embodiment, the lightweight partition building material structure further includes two plastering layers (213), which are disposed on opposite sides of the main body of the structure (211), wherein the thickness (H1) from the surface of one plastering layer (213) to the surface of the other plastering layer (213) is less than ten centimeters.

[0149] Figure 8 is a schematic diagram of the lightweight partition building material structure of the third embodiment. Please refer to Figure 8.

[0150] In this embodiment, the lightweight partition building material structure further includes a sound insulation layer (212), which is disposed between the two main body structures (211). The sound insulation layer (212) contains 50 to 80 parts by weight of sound-absorbing particles (2122), 10 to 30 parts by weight of resin (2121), and sufficient amount of water that is not zero.

[0151] Regarding the method of placing the sound insulation layer (212) between the two structural bodies (211), for example, cement mortar (2112) mixed with superabsorbent polymer granules (2113) can be poured onto the sound insulation layer (212), and then allowed to set for 5 to 10 days, followed by curing for about 28 days. After the cement mortar (2112) has solidified, the superabsorbent polymer granules (2113) will shrink due to moisture evaporation, causing the portion of the cement mortar (2112) originally occupied by the superabsorbent polymer granules (2113) to become pores of varying sizes, i.e., holes (2111). Accordingly, a structural body (211) with a density of less than 1500 kg / m³ is formed.

[0152] Compared to cement structures with a density of 2200 to 2500 kg / m³, the main body of the structure (211) is lighter in the same volume.

[0153] The amount of superabsorbent polymer granules (2113) added is positively correlated with the porosity of the pores (2111).

[0154] Table 1 shows two experimental examples and two comparative examples of this embodiment. Comparative example 1 is ordinary cement mortar with the sound insulation layer (212) of this embodiment added, and comparative example 2 is ordinary lightweight cement mortar with the sound insulation layer (212) of this embodiment added. The resin used in the two comparative examples is BC-604.

[0155] In the experimental example, the cement mortar (2112) of the main structure (211) contains cement, fine stone, and water, as well as a plurality of debris, adhesive resin, and cement mortar additives. The adhesive resin is polyurethane acrylate, and the cement mortar additive is "iwaterproof" waterproof additive produced by Huacai Coatings Industry Co., Ltd. In Experimental Example 1, the debris was microcrystalline wood polishing abrasive and recycled rubber granules, while in Experimental Example 2, the debris was recycled rubber granules.

[0156] Table 1: weight Experimental Example 1 Experimental Example 2 Comparative Example 1 Comparative Example 2 sound insulation layer soft rubber granules 60.0% 0.0% 16.0% 0.0% hard rubber granules 0.0% 75.0% 50.0% 75.0% Resin (BC-604) 20.0% 17.0% 22.0% 17.0% water 20.0% 8.0% 12.0% 8.0% Main structure cement mortar cement 21.7% 23.4% 18.0% 24.0% fine sand 0.0% 0.0% 71.7% 6.8% fine stones 23.8% 25.6% 0.0% 15.6% Rubber debris 3.7% 0.0% 0.0% 11.9% Wood chips (microcrystalline wood) 14.2 15.6 0.0% 12.1% Cement mortar additives 1.4% 1.4% 1.2% 2.8% Clear water 34.1% 32.5% 9.1% 26.1% Adhesive resin 0.62% 1.11% - 0.66% Superabsorbent polymer granules 0.410% 0.445% - - Density after curing (kg / m³) 3 ) 726 649 2138 833 Impact noise reduction (dB) twenty four 26 twenty two twenty two

[0157] As can be seen from Table 1 above, Experimental Examples 1 and 2 not only have lower densities after curing than ordinary cement mortar and ordinary lightweight cement mortar, but their impact sound reduction value is also higher than the 21dB standard of soundproof green building materials, thus producing a good sound insulation effect.

[0158] Although the addition of a sound insulation layer in Comparative Examples 1 and 2 resulted in a higher reduction in impact noise than that of ordinary cement mortar, it still could not achieve the effect of the present invention.

[0159] In addition, preferably, the thickness of the sound insulation layer (212) is 5 to 20 mm, and the particle size of the sound-absorbing particles (2122) is 1 to 20 mm.

[0160] Preferably, the noise-reducing particles (2122) are made of rubber.

[0161] Preferably, the particle size of the noise-reducing particles (2122) can be 1 to 8 mm, and it is composed of a mixture of elastic soft rubber particles and hard rubber particles. The hard rubber particles can be powder particles from recycled waste tires, while the soft rubber particles can be powder particles from recycled and modified waste tires.

[0162] Preferably, the resin is selected from polyurethane, ethylene vinyl acetate copolymer, or polyacrylate.

[0163] Figure 9 is a schematic diagram of the lightweight partition building material structure of the fourth embodiment. Please refer to Figure 9.

[0164] In this embodiment, the lightweight partition building material structure further includes two plaster layers (213'), which are disposed on opposite sides of different structural bodies (211), wherein the thickness (H2) from the surface of one plaster layer (213') to the surface of the other plaster layer (213') is less than ten centimeters.

[0165] Figure 10 is a schematic diagram of the lightweight partition building material structure of the fifth embodiment. Please refer to Figure 10.

[0166] In this embodiment, the lightweight partition building material structure further includes two reinforcing plates (214'), which are covered on opposite sides of different structural bodies (211).

[0167] Figure 11 is a schematic diagram of the lightweight partition building material structure of the sixth embodiment. Please refer to Figure 11.

[0168] In this embodiment, the two reinforcing plates (214) are covered on opposite sides of the main body of the structure (211).

[0169] Preferably, the two reinforced boards (214, 214') are gypsum board, cement board, fiber cement board, fiber reinforced cement board, wood-based cement board, magnesium oxide board or hard fiberboard.

[0170] In summary, the multiple pores within the main structure reduce the conduction speed of sound and heat within the main structure, resulting in sound absorption and heat absorption effects. The sound insulation layer also has a sound reduction effect. Therefore, when the main structure and the sound insulation layer are combined, a better sound insulation and heat insulation effect can be achieved.

[0171] Furthermore, the modular design of this invention eliminates the need to wait for the adhesive to dry and the cement mortar to harden. Its lightweight nature and ease of transport significantly reduce the materials and tools required for construction. The modular design also allows for the prefabrication of multiple lightweight partition structures of different sizes conforming to common specifications. Based on site information, the corresponding quantity and size specifications can be transported to the site for direct installation, greatly improving construction efficiency and reducing waste generated during on-site construction.

[0172] V. Regarding floor slabs:

[0173] According to the current building technical regulations in Taiwan, the following specifications apply to the design of soundproofing and sound insulation, including airborne sound insulation design and floor impact sound insulation design.

[0174] The scope of application for sound insulation design of floor slabs in newly constructed or expanded buildings is as follows: 1. Floor slabs separating units in connected residential buildings and multi-unit residential buildings. 2. Floor slabs of elevator rooms in the buildings mentioned above, and floor slabs separating the space for placing mechanical equipment from the living rooms on the lower floor.

[0175] For example, the sound insulation structure of the floor slab of each unit shall meet one of the following requirements. However, this does not apply to balconies or floors where no living room is located below: 1. For reinforced concrete floor slabs with a thickness of 15 cm or more, or steel-bearing reinforced concrete floor slabs with a maximum thickness of 19 cm or more, the surface material (including buffer material) laid on them shall meet one of the following requirements: (a) Rubber buffer material (thickness of 0.8 cm or more, dynamic rigidity of 50 million Newtons / cubic meter or less), on which a concrete floor (thickness of 5 cm or more, reinforced with steel bars or wire mesh) is laid, and the surface material of the floor is not restricted. (b) Rubber buffer material (thickness of 0.8 cm or more, dynamic rigidity of 50 million Newtons / cubic meter or less), on which a cement mortar and floor tile with a total thickness of 6 cm or more is laid. (iii) Rubber cushioning material (thickness 0.5 cm or more, dynamic rigidity 55 million Newtons / cubic meter or less), upon which a wooden floor is laid with a total thickness of 1.2 cm or more. (iv) Glass wool cushioning material (density 96 to 120 kg / cubic meter) with a thickness of 0.8 cm or more, upon which a wooden floor is laid with a total thickness of 1.2 cm or more. (v) For raised floors with a total wooden floor thickness of 2 cm or more, rubber cushioning material (thickness 0.5 cm or more) or glass wool cushioning material (thickness 0.8 cm or more) must be laid between the raised corners or base and the floor slab. The raised gaps must be filled with glass wool, rock wool or ceramic wool with a density of 60 kg / cubic meter or more and a thickness of 5 cm or more. (vi) Glass wool cushioning material (density 96 to 120 kg / m³) or rock wool cushioning material (density 100 to 150 kg / m³) with a thickness of 2.5 cm or more, upon which a concrete floor (thickness 5 cm or more, reinforced with steel bars or wire mesh) is laid, the surface material of the floor is not restricted. (vii) Surface materials (including cushioning materials) approved by the central competent building authority, with an impact sound reduction index △Lw of 17 dB or more, or high-performance green building materials (sound insulation) that have obtained the Ministry of the Interior's Green Building Materials Certification. II. Reinforced concrete floor slabs with a thickness of 12 cm or more, or steel-deck reinforced concrete floor slabs with a maximum thickness of 16 cm or more, upon which a surface material (including cushioning material) approved by the central competent building authority is laid, with an impact sound reduction index △Lw of 20 dB or more, or high-performance green building materials (sound insulation) that have obtained the Ministry of the Interior's Green Building Materials Certification. 3. Other sound insulation properties that have been approved by the central building authority and have a floor impact sound index Ln,w below 58 decibels.

[0176] As can be seen from the aforementioned regulations, traditional construction methods have higher density and thickness, which will increase the weight of building materials, thereby increasing construction and transportation costs, which is not conducive to the current trend of energy conservation, carbon reduction and green building.

[0177] Where △Lw represents the material's ability to reduce impact noise, and a requirement of 20 decibels means a higher level of sound insulation is needed. In contrast, Ln,w below 58 decibels is a limitation on the final impact noise. Although it is also a standard, the former requirement is usually more stringent than the challenge of requiring a 20-decibel reduction in volume.

[0178] Therefore, the focus of this embodiment is that it can meet the government-mandated impact sound insulation index △Lw of more than 20 decibels, or meet the high-performance green building material (sound insulation) requirements of the Green Building Materials Label.

[0179] In addition, although there are other relevant regulations regarding the airborne sound insulation structure of the floor slab separating the space for placing mechanical equipment from the upper or lower living room, the impact sound insulation structure of the floor slab of the elevator room, and the impact sound insulation structure of the floor slab separating the space for placing mechanical equipment from the lower living room, their standards are all greater than the sound insulation performance of ΔLw above 20 decibels. Therefore, the objective of this embodiment is to meet the government-mandated impact sound insulation index ΔLw above 20 decibels, or to meet the high-performance green building materials (sound insulation) requirements of the Green Building Materials Label.

[0180] Figure 12 is a schematic diagram of the lightweight floor slab structure of the first embodiment. Please refer to Figure 12.

[0181] The lightweight floor building material structure of this embodiment includes: a structural body (311) with a density of less than 1500 kg / m³, the structural body (311) including a cement mortar (3112) of 95% to 99.9% by weight, and a plurality of highly absorbent polymer granules (3113) distributed in the cement mortar and having a weight percentage of 0.1% to 5%, wherein the cement mortar (3112) has a plurality of pores (3111), and the volume expansion rate of the highly absorbent polymer granules (3113) after absorbing water is 10 to 70 times.

[0182] The density of the main structure (311) is less than 1,500 kg / m³, which is much lighter than that of a typical cement structure with a density of 2,200 to 2,500 kg / m³.

[0183] Preferably, the superabsorbent polymer granules (3113) are embedded in the pores (3111), and the maximum outer diameter of the superabsorbent polymer granules (3113) is less than or equal to the minimum inner diameter of the corresponding pore (3111).

[0184] Preferably, the cement mortar (3112) contains a plurality of debris, the material of which is rubber, polyethylene terephthalate, microcrystalline wood, or ceramsite.

[0185] Among them, microcrystalline wood (CELLwood) is formed by foaming thermoplastic elastomers (TPE).

[0186] Preferably, the cement mortar (3112) contains an adhesive resin, which is a nonionic or anionic waterborne latex.

[0187] Preferably, the adhesive resin is selected from polyurethane, ethylene vinyl acetate copolymer, polyurethane acrylate, polyacrylate, acrylate-butadiene rubber, chloroprene rubber, and styrene-butadiene rubber.

[0188] Preferably, the cement mortar (3112) contains a cement mortar additive, which includes a waterproofing additive.

[0189] Preferably, the superabsorbent polymer granules (3113) are made of sodium polyacrylate or sodium polycarboxylate.

[0190] Figure 13 is a schematic diagram of the lightweight floor building material structure of the second embodiment. Please refer to Figure 13.

[0191] In this embodiment, the lightweight floor building material structure further includes a sound insulation layer (312), which is disposed under the main body of the structure (311). The sound insulation layer (312) contains 50 to 80 parts by weight of sound-reducing particles (3122), 10 to 30 parts by weight of resin (3121), and sufficient water that is not zero.

[0192] Regarding the method of placing the sound insulation layer (312) under the main structure (311), for example, cement mortar (3112) mixed with superabsorbent polymer granules (3113) can be poured onto the sound insulation layer (312), and then allowed to set for 5 to 10 days, followed by curing for about 28 days. After the cement mortar (3112) has solidified, the superabsorbent polymer granules (3113) will shrink due to moisture evaporation, causing the portion of the cement mortar (3112) originally occupied by the superabsorbent polymer granules (3113) to become pores of varying sizes, i.e., holes (3111). Accordingly, a main structure (311) with a density of less than 1500 kg / m³ is formed.

[0193] Compared to cement structures with a density of 2200 to 2500 kg / m³, the main body of the structure (311) is lighter in the same volume.

[0194] The amount of superabsorbent polymer granules (3113) added is positively correlated with the porosity of the pores (3111).

[0195] Table 2 shows two experimental examples and two comparative examples of this embodiment. Comparative example 1 is ordinary cement mortar with the sound insulation layer (312) of this embodiment added, and comparative example 2 is ordinary lightweight cement mortar with the sound insulation layer (312) of this embodiment added. The resin used in the two comparative examples is BC-604.

[0196] In the experimental example, the cement mortar (3112) of the main structure (311) contains, in addition to cement, fine stone, and water, a plurality of debris, adhesive resin, and cement mortar additives. The adhesive resin is polyurethane acrylate, and the cement mortar additive is "iwaterproof" waterproof additive produced by Huacai Coatings Industry Co., Ltd. In Experimental Example 1, the debris was microcrystalline wood polishing abrasive and recycled rubber granules, while in Experimental Example 2, the debris was recycled rubber granules. Table 2:

[0197] weight Experimental Example 1 Experimental Example 2 Comparative Example 1 Comparative Example 2 sound insulation layer soft rubber granules 60.0% 0.0% 16.0% 0.0% hard rubber granules 0.0% 75.0% 50.0% 75.0% Resin (BC-604) 20.0% 17.0% 22.0% 17.0% water 20.0% 8.0% 12.0% 8.0% Main structure cement mortar cement 21.7% 23.4% 18.0% 24.0% fine sand 0.0% 0.0% 71.7% 6.8% fine stones 23.8% 25.6% 0.0% 15.6% Rubber debris 3.7% 0.0% 0.0% 11.9% Wood chips (microcrystalline wood) 14.2 15.6 0.0% 12.1% Cement mortar additives 1.4% 1.4% 1.2% 2.8% Clear water 34.1% 32.5% 9.1% 26.1% Adhesive resin 0.62% 1.11% - 0.66% Superabsorbent polymer granules 0.410% 0.445% - - Density after curing (kg / m³) 3 ) 726 649 2138 833 Impact noise reduction (dB) twenty four 26 twenty two twenty two

[0198] As can be seen from Table 2 above, Experimental Examples 1 and 2 not only have lower densities after curing than ordinary cement mortar and ordinary lightweight cement mortar, but their impact sound reduction value is also higher than the 21dB standard of soundproof green building materials, thus producing a good sound insulation effect.

[0199] Although the addition of a sound insulation layer in Comparative Examples 1 and 2 resulted in a higher reduction in impact noise than that of ordinary cement mortar, it still could not achieve the effect of the present invention.

[0200] In addition, preferably, the thickness of the sound insulation layer (312) is 5 to 20 mm, and the particle size of the sound-absorbing particles (3122) is 1 to 20 mm.

[0201] Preferably, the noise-reducing particles (3122) are made of rubber.

[0202] Preferably, the noise-reducing particles (3122) have a particle size of 1 to 8 mm and are composed of a mixture of elastic soft rubber particles and hard rubber particles. The hard rubber particles can be powder particles from recycled waste tires, while the soft rubber particles can be powder particles from recycled and modified waste tires.

[0203] Preferably, the resin (3121) is made of polyurethane, ethylene vinyl acetate copolymer, or polyacrylate.

[0204] In summary, the multiple pores within the main structure reduce the conduction speed of sound and heat within the main structure, resulting in sound absorption and heat absorption effects. The sound insulation layer also has a sound reduction effect. Therefore, when the main structure and the sound insulation layer are combined, a better sound insulation and heat insulation effect can be achieved.

[0205] Furthermore, the modular design of this invention eliminates the need to wait for the adhesive to dry and the cement mortar to harden. Its lightweight nature and ease of transport significantly reduce the materials and tools required for construction. The modular design also allows for the prefabrication of multiple lightweight partition structures of different sizes conforming to common specifications. Based on site information, the corresponding quantity and size specifications can be transported to the site for direct installation, greatly improving construction efficiency and reducing waste generated during on-site construction.

[0206] In summary, the present invention provides a method for manufacturing lightweight cement, and the lightweight cement, its sidewalk paving material structure, its lightweight partition material structure, and its lightweight floor material structure. The pores in the cement mortar reduce the conduction speed of sound and heat within the main structure, thereby producing sound absorption and heat absorption effects, achieving excellent sound and heat insulation. The sound insulation layer further enhances the sound insulation effect and maintains overall uniformity, while also eliminating unevenness in the floor level. Simultaneously, the pores significantly reduce the structural weight, thus the present invention substantially improves upon previous technologies.

[0207] Furthermore, in the embodiments related to lightweight partitions and floors, the aforementioned superabsorbent polymer granule destructor is selectively added. This is because lightweight partitions and floors are more commonly used in indoor environments, and are less likely to encounter large amounts of water or extreme humidity. Therefore, the superabsorbent polymer granule destructor can be selectively omitted. Alternatively, the expansion rate of these superabsorbent polymer granules can be gradually reduced over time.

[0208] Although this invention has been disclosed using the above preferred embodiments, it is not intended to limit this invention. Any modifications and alterations made by those skilled in the art to the above embodiments without departing from the spirit and scope of this invention still fall within the technical scope protected by this invention. Therefore, the scope of protection of this invention includes all changes within the meaning and equivalent scope of the appended claims. When the above embodiments can be combined, this invention includes any combination of implementation styles. [Simplified Explanation of the Diagram]

[0094] The embodiments of this invention will be described with the following simple explanations and accompanying drawings: Figure 1 is a perspective view of a conventional paving brick assembly. Figure 2 is a schematic diagram of the steps of the manufacturing method of lightweight cement according to the embodiment. Figure 3 is another schematic diagram of the steps of the manufacturing method of lightweight cement according to the embodiment. Figure 4 is a schematic diagram of the paving brick building material structure according to the embodiment. Figure 5 is an enlarged schematic diagram of the rainwater diversion of the seismic layer according to the embodiment. Figure 6 is a schematic diagram of the lightweight partition building material structure of the first embodiment. Figure 7 is a schematic diagram of the lightweight partition building material structure of the second embodiment. Figure 8 is a schematic diagram of the lightweight partition building material structure of the third embodiment. Figure 9 is a schematic diagram of the lightweight partition building material structure of the fourth embodiment. Figure 10 is a schematic diagram of the lightweight partition building material structure of the fifth embodiment. Figure 11 is a schematic diagram of the lightweight partition building material structure of the sixth embodiment. Figure 12 is a schematic diagram of the lightweight floor building material structure of the first embodiment. Figure 13 is a schematic diagram of the lightweight floor building material structure of the second embodiment.

Claims

1. A method for manufacturing lightweight cement, comprising: taking a plurality of superabsorbent polymer granules and a cement mortar, wherein the superabsorbent polymer granules comprise 0.1% to 5% by weight and the cement mortar comprises 95% to 99.9% by weight; soaking the superabsorbent polymer granules in water to expand their volume by 10 to 70 times; adding the expanded superabsorbent polymer granules to the cement mortar and mixing; laying and curing the mixed cement mortar, allowing the superabsorbent polymer granules to shrink and form a plurality of pores in the cement mortar to form a structural body with a density of less than 1200 kg / m³; and adding a superabsorbent polymer granule destructor to the cured cement mortar to prevent the superabsorbent polymer granules from expanding upon contact with water.

2. The method for manufacturing lightweight cement as described in claim 1, wherein, The materials for these superabsorbent polymer granules are selected from sodium polyacrylate or sodium polycarboxylate.

3. The method for manufacturing lightweight cement as described in claim 1, wherein, The cement mortar contains a plurality of debris, the material of which is rubber, polyethylene terephthalate, microcrystalline wood, or ceramsite.

4. The method for manufacturing lightweight cement as described in claim 3, wherein, An adhesive is mixed into the cement mortar.

5. The method for manufacturing lightweight cement as described in claim 4, wherein, The adhesive is a nonionic or anionic water-based latex.

6. The method for manufacturing lightweight cement as described in claim 5, wherein, The waterborne latex is selected from polyurethane, ethylene vinyl acetate copolymer, polyurethane acrylate, polyacrylate, acrylate-butadiene rubber, chloroprene rubber, or styrene-butadiene rubber.

7. The method for manufacturing lightweight cement as described in claim 1, wherein, It also includes adding a cement mortar additive or a water-reducing agent to the mixed cement mortar.

8. The method for manufacturing lightweight cement as described in claim 7, wherein, This cement mortar additive contains waterproofing additives.

9. A lightweight cement, made by a method for manufacturing lightweight cement as described in any one of claims 1 to 8, having a plurality of pores and a density of less than 1200 kg / m³.

10. A sidewalk paving material structure comprising: a structural body (111) having lightweight cement as described in claim 9, such that the structural body (111) has a plurality of pores (1111) for storing or draining moisture, and the density of the structural body (111) is less than 1200 kg / m³.

11. The sidewalk paving material structure as described in claim 10, wherein, By further impregnating or spraying the sidewalk paving material structure with the superabsorbent polymer granule destructor, the superabsorbent polymer granules (1113) will no longer swell when exposed to water.

12. The sidewalk paving material structure as described in claim 10, wherein, Before the superabsorbent polymer granules (1113) are subjected to the superabsorbent polymer granule destructor, the superabsorbent polymer granules (1113) are embedded in the holes (1111), and the maximum outer diameter of the superabsorbent polymer granules (1113) is less than or equal to the minimum inner diameter of the corresponding hole (1111).

13. A lightweight partition building material structure comprising: a structural body (211) having lightweight cement as described in claim 9, such that the structural body (211) has a plurality of pores (2111), and the density of the structural body (211) is less than 1200 kg / m³.

14. The lightweight partition building material structure as described in claim 13, wherein, Before the superabsorbent polymer granules (2113) are subjected to the superabsorbent polymer granule destructor, the superabsorbent polymer granules (2113) are embedded in the holes (2111), and the maximum outer diameter of the superabsorbent polymer granules (2113) is less than or equal to the minimum inner diameter of the corresponding hole (2111).

15. The lightweight partition building material structure as described in claim 13, wherein, The cement mortar (2112) contains a plurality of spherical silicon dioxide obtained by reprocessing a silicon-containing waste.

16. The lightweight partition building material structure as described in claim 13, further comprising two plaster layers (213) disposed on opposite sides of the main body of the structure (211), wherein, The thickness (H1) measured from the surface of one layer of the paint (213) to the surface of the other layer of the paint (213) is less than ten centimeters.

17. The lightweight partition building material structure as described in claim 13, wherein, The cement mortar (2112) contains a plurality of debris, the material of which is rubber, polyethylene terephthalate, microcrystalline wood or ceramsite.

18. The lightweight partition building material structure as described in claim 13, wherein, The cement mortar (2112) contains an adhesive resin, which is a nonionic or anionic water-based latex.

19. The lightweight partition building material structure as described in claim 18, wherein, The adhesive resin is selected from one of the following: polyurethane, ethylene vinyl acetate copolymer, polyurethane acrylate, polyacrylate, acrylate-butadiene rubber, chloroprene rubber, and styrene-butadiene rubber.

20. The lightweight partition building material structure as described in claim 13, wherein, The cement mortar (2112) contains cement mortar additives, which include waterproofing additives.

21. The lightweight partition building material structure as described in claim 13, wherein, The superabsorbent polymer granules (2113) are made of sodium polyacrylate or sodium polycarboxylate.

22. The lightweight partition building material structure as described in claim 13, further comprising a sound insulation layer (212) disposed between the two structural bodies (211), the sound insulation layer (212) comprising 50 to 80 parts by weight of sound-absorbing particles (2122), 10 to 30 parts by weight of resin (2121), and sufficient amount of water not equal to zero.

23. The lightweight partition building material structure as described in claim 22, wherein, The thickness of the sound insulation layer (212) is 5 to 20 mm, and the particle size of the sound-reducing particles (2122) is 1 to 20 mm.

24. The lightweight partition building material structure as described in claim 22, wherein, The noise-reducing pellets (2122) are made of rubber.

25. The lightweight partition building material structure as described in claim 22, wherein, The resin (2121) is made from polyurethane, ethylene vinyl acetate copolymer, or polyacrylate.

26. The lightweight partition building material structure as described in claim 22, further comprising two plaster layers (213') disposed on opposite sides of different structural bodies (211), wherein, The thickness (H2) measured from the surface of one of the paint layers (213') to the surface of the other paint layer (213') is less than ten centimeters.

27. The lightweight partition building material structure as described in claim 13, wherein, The airborne sound insulation index Rw of this lightweight partition building material structure is greater than or equal to 45 decibels.

28. The lightweight partition building material structure as described in claim 13, wherein, The lightweight partition building material structure meets the high-performance green building material (sound insulation) standard of the Green Building Materials Label.

29. The lightweight partition building material structure as described in claim 13, further comprising two reinforcing panels (214) covering opposite sides of the main body of the structure (211).

30. The lightweight partition building material structure as described in claim 22, further comprising two reinforcing panels (214') covering opposite sides of different structural bodies (211).

31. The lightweight partition building material structure as described in claim 29 or 30, wherein, The two reinforced boards (214, 214') are gypsum board, cement board, fiber cement board, fiber reinforced cement board, wood-based cement board, magnesium oxide board or hard fiberboard.

32. A lightweight floor building material structure, comprising: a structural body (311) having lightweight cement as described in claim 9, such that the structural body (311) has a plurality of pores (3111), and the density of the structural body (311) is less than 1200 kg / m³.

33. The lightweight floor slab structure as described in claim 32, wherein, Before the superabsorbent polymer granules (3113) are subjected to the superabsorbent polymer granule destructor, the superabsorbent polymer granules (3113) are embedded in the holes (3111), and the maximum outer diameter of the superabsorbent polymer granules (3113) is less than or equal to the minimum inner diameter of the corresponding hole (3111).

34. The lightweight floor slab structure as described in claim 32, wherein, The cement mortar (3112) contains a plurality of debris, the material of which is rubber, polyethylene terephthalate, microcrystalline wood, or ceramsite.

35. The lightweight floor slab structure as described in claim 32, wherein, The cement mortar (3112) contains an adhesive resin, which is a nonionic or anionic water-based latex.

36. The lightweight floor slab structure as described in claim 35, wherein, The adhesive resin is selected from one of the following: polyurethane, ethylene vinyl acetate copolymer, polyurethane acrylate, polyacrylate, acrylate-butadiene rubber, chloroprene rubber, and styrene-butadiene rubber.

37. The lightweight floor slab structure as described in claim 32, wherein, The cement mortar (3112) contains cement mortar additives, which include waterproofing additives.

38. The lightweight floor slab structure as described in claim 32, wherein, The superabsorbent polymer granules (3113) are made of sodium polyacrylate or sodium polycarboxylate.

39. The lightweight floor building material structure as described in claim 32, further comprising a sound insulation layer (312) disposed under the main body of the structure (311), the sound insulation layer (312) comprising 50 to 80 parts by weight of sound-absorbing particles (3122), 10 to 30 parts by weight of resin (3121), and sufficient amount of water not equal to zero.

40. The lightweight floor slab structure as described in claim 39, wherein, The thickness of the sound insulation layer (312) is 5 to 20 mm, and the particle size of the sound-reducing particles (3122) is 1 to 20 mm.

41. The lightweight floor slab structure as described in claim 39, wherein, The noise-reducing pellets (3122) are made of rubber.

42. The lightweight floor slab structure as described in claim 39, wherein, The resin (3121) is made from polyurethane, ethylene vinyl acetate copolymer, or polyacrylate.

43. The lightweight floor slab structure as described in claim 32, wherein, This lightweight flooring material structure meets the high-performance green building material (sound insulation) standard of the Green Building Materials Label.

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