Wall plastering structure

Abstract

The utility model relates to the technical field of building decoration, in particular to a wall plastering structure which comprises a main body mechanism and a wall base surface layer, the main body mechanism is located above the wall base surface layer, and the wall base surface layer is located at the bottom end of the main body mechanism. The main body mechanism comprises an interface coating, alkali-resistant glass fiber gridding cloth and a desulfurized gypsum plaster bottom layer, the interface coating is tightly attached to the top end of the wall base surface layer, and the alkali-resistant glass fiber gridding cloth is tightly attached to the top end of the interface coating. According to the utility model, through the main body mechanism, the desulfurized gypsum is adopted to replace cement and the plastering mortar ground ash is adopted to replace part of sand to prepare desulfurized gypsum regenerated plastering mortar, so that the performance index requirements of M2.5 plastering mortar with the compressive strength of 2.5 MPa and the tensile adhesive strength of 0.15 MPa are met, and the carbon emission reduction effect is obvious; therefore, the device has the characteristics of small plastic deformation value, small drying shrinkage value, high tensile strength, high toughness and the like, the plastering surface is not easy to crack, and the practicability of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to building decoration technical field, concretely is a wall plastering structure. BACKGROUND

[0002] The project researches and develops and applies the feasibility and economy of indoor plastering mortar carbon emission reduction technology in the field of building decoration, and realizes the benign circulation mode of resources "resources - products - waste - renewable resources" with the principle of "reduction, reuse and resource", the core of improving resource utilization efficiency, the least resource consumption and environmental cost, and realizes the sustainable development of economic society.

[0003] The resourceful construction waste not only can effectively improve the resource and energy utilization efficiency, indirectly reduce carbon emission, but also can protect ecology and promote economic development, and is an important link of the development of circular economy and the realization of sustainable development of building material industry.

[0004] A large amount of falling dust is generated in the plastering process, and if it is not recycled in time, it becomes construction waste, which not only greatly affects the appearance of the construction site, but also causes material waste and environmental pollution.

[0005] The cement carbon emission factor used in the plastering mortar is 735.000CO2 eq. / t, and the desulfurization gypsum with a carbon emission factor of only 3.235CO2 eq. / t is used to replace it. Under the condition of limited increase in material cost, the desulfurization gypsum plastering mortar prepared by replacing part of the sand with desulfurization gypsum instead of cement and plastering mortar falling dust meets the performance index requirements of M2.5 plastering mortar with compressive strength of 2.5MPa and tensile bonding strength of 0.15MPa, and the carbon emission reduction effect is remarkable.

[0006] In 2023, the construction area of the national building industry was 151 billion square meters, the plastering engineering quantity was about 1.963 billion cubic meters, the cement replacement quantity was about 0.442 billion tons, and the carbon emission reduction quantity of the desulfurization gypsum plastering mortar reached 323.440 billion CO2 eq. / t. According to the price of the national carbon trading market on July 9, 2024, which is 90.87 yuan / ton, the carbon income is 2.939 billion yuan. According to the cement price of 500 yuan / ton and the desulfurization gypsum price of 1200 yuan / ton, the cost of desulfurization gypsum increases by about 0.031 billion yuan, and the net income is about 2.9082.939 billion yuan, which is very significant. UTILITY MODEL CONTENT

[0007] The purpose of the utility model is to provide a wall plastering structure to solve the problems raised in the above background technology.

[0008] To achieve the above objectives, the present invention provides the following technical solutions:

[0009] A wall plastering structure comprises a main body structure and a wall base surface layer, wherein the main body structure is located above the wall base surface layer, and the wall base surface layer is located at the bottom end of the main body structure;

[0010] The main structure includes an interface coating, an alkali-resistant glass fiber mesh cloth and a desulfurized gypsum plaster bottom layer. The top of the wall base layer is tightly fitted with the interface coating, the top of the interface coating is tightly fitted with the alkali-resistant glass fiber mesh cloth, the top of the alkali-resistant glass fiber mesh cloth is tightly fitted with the desulfurized gypsum plaster bottom layer, the top of the desulfurized gypsum plaster bottom layer is tightly fitted with the medium-alkali glass fiber mesh cloth, the top of the medium-alkali glass fiber mesh cloth is tightly fitted with the desulfurized gypsum plaster surface layer, A finishing layer is installed tightly on the top of the desulfurized gypsum plaster surface layer. Through the main mechanism, the desulfurized gypsum recycled plaster mortar prepared by using desulfurized gypsum to replace cement and plaster mortar floor ash to replace part of the sand meets the performance index requirements of M2.5 plaster mortar with a compressive strength of 2.5MPa and a tensile bonding strength of 0.15MPa, and has a significant carbon emission reduction effect. As a result, the device has the characteristics of small plastic deformation value, small drying shrinkage value, high tensile strength, high toughness, etc., and is not prone to cracking of the plaster surface, thereby improving the practicality of the device.

[0011] Preferably, the main material of the medium-alkali glass fiber mesh cloth is desulfurized gypsum, and the main component of the desulfurized gypsum is calcium sulfate dihydrate CaSO4·2H2O, which is neutral. By using desulfurized gypsum, it is neutral, so the medium-alkali glass fiber mesh cloth with low cost and good durability can be used as the plaster layer for reinforcement.

[0012] Preferably, the wall base surface layer is generally concrete or block wall, both of which are alkaline materials, and is in contact with the base surface through the bottom plaster layer. Therefore, the bottom plaster layer still needs to use alkali-resistant glass fiber mesh cloth.

[0013] Preferably, the medium alkali glass fiber mesh cloth has a length of 0 to 20,000 mm, a width of 900 to 1,750 mm, a square hole size of 5 to 10 mm, and a warp and weft breaking strength of 700 to 2,100 N / 50 mm. The medium alkali glass fiber mesh cloth is used to reduce costs.

[0014] Preferably, the alkali-resistant coating glue has ZrO2 content of 15-25%, length of 0-20000mm, width of 900-1750mm, square mesh of 5-10mm, and warp and weft breaking strength of 700-2100N / 50mm, and the alkali-resistant glass mesh cloth is used to realize the purpose of strengthening mechanism and improving service life.

[0015] Preferably, the thickness of the desulfurized gypsum plaster base layer and surface layer is 3-15mm, and the desulfurized gypsum plaster base layer and surface layer is composed of desulfurized gypsum powder, fine sand, floor dust regeneration powder, cellulose ether, heavy calcium powder, polyvinyl alcohol, gypsum retarder and water, and the desulfurized gypsum regeneration plaster mortar is prepared by replacing cement with desulfurized gypsum and replacing part of sand with floor dust of plaster mortar, so that the M2.5 plaster mortar performance index requirements of compressive strength of 2.5MPa and tensile bonding strength of 0.15MPa are met, and the carbon emission reduction effect is remarkable.

[0016] Compared with the prior art, the wall plaster structure has the advantages that:

[0017] 1. The wall plaster structure is developed and applied by researching the feasibility and economy of the indoor plaster mortar carbon emission reduction technology, so that resource consumption and environmental cost are reduced as much as possible, economic and social sustainable development is realized, the hardened floor dust is crushed and used as fine aggregate, material is saved and engineering cost is reduced, civilized construction management is beneficial, the emission amount of construction waste is reduced, and the environmental pressure is reduced.

[0018] 2. The wall plaster structure adopts the desulfurized gypsum regeneration plaster mortar prepared by replacing cement with desulfurized gypsum and replacing part of sand with floor dust of plaster mortar, so that the M2.5 plaster mortar performance index requirements of compressive strength of 2.5MPa and tensile bonding strength of 0.15MPa are met, the carbon emission reduction effect is remarkable, the device has the characteristics of small plastic deformation value, small drying shrinkage value, high tensile strength and high toughness, the plaster surface is not easy to crack, and the practicability of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic view of the utility model;

[0020] Figure 2 It is a plane structure schematic view of the utility model;

[0021] Figure 3 It is a section structure schematic view of the utility model;

[0022] In the drawing: 1, main body mechanism; 101, interface coating; 102, alkali-resistant glass mesh cloth; 103, desulfurized gypsum plaster base layer; 104, medium alkali glass mesh cloth; 105, desulfurized gypsum plaster surface layer; 106, finishing layer; 2, wall base layer. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-Figure 3 As shown, the utility model provides a technical solution:

[0025] A wall plastering structure comprises a main body 1 and a wall base surface layer 2, wherein the main body 1 is located above the wall base surface layer 2, and the wall base surface layer 2 is located at the bottom end of the main body 1;

[0026] The main structure 1 includes an interface coating 101, an alkali-resistant glass fiber mesh cloth 102 and a desulfurized gypsum plaster bottom layer 103. The top of the wall base layer 2 is tightly fitted with the interface coating 101, the top of the interface coating 101 is tightly fitted with the alkali-resistant glass fiber mesh cloth 102, the top of the alkali-resistant glass fiber mesh cloth 102 is tightly fitted with the desulfurized gypsum plaster bottom layer 103, the top of the desulfurized gypsum plaster bottom layer 103 is tightly fitted with the medium-alkali glass fiber mesh cloth 104, and the top of the medium-alkali glass fiber mesh cloth 104 is tightly fitted with the desulfurized gypsum plaster bottom layer 103. The desulfurized gypsum plaster surface layer 105 is tightly fitted on the top of the desulfurized gypsum plaster surface layer 105 and is provided with a finishing layer 106. Through the main body 1, the desulfurized gypsum recycled plaster mortar is prepared by using desulfurized gypsum to replace cement and the plaster mortar floor ash to replace part of the sand. It meets the performance index requirements of M2.5 plaster mortar with a compressive strength of 2.5MPa and a tensile bonding strength of 0.15MPa, and has a significant carbon emission reduction effect, so that the device has the characteristics of small plastic deformation value, small drying shrinkage value, high tensile strength, high toughness, etc., and is not easy to cause cracking of the plaster surface, thereby improving the practicality of the device.

[0027] Preferably, the main material of the medium-alkali glass fiber mesh cloth 104 is desulfurized gypsum, and the main component of desulfurized gypsum is calcium sulfate dihydrate CaSO4·2H2O, which is neutral. By using desulfurized gypsum, it is neutral, so the medium-alkali glass fiber mesh cloth 104 with low cost and good durability can be used as a plaster layer for reinforcement.

[0028] Preferably, the wall base surface layer 2 is generally concrete or block wall, both of which are alkaline materials, and is in contact with the base surface through the bottom plaster layer. Therefore, the bottom plaster layer still needs to use alkali-resistant glass fiber mesh cloth 102.

[0029] Preferably, the medium alkali glass fiber mesh cloth 104 has a length of 0 to 20,000 mm, a width of 900 to 1,750 mm, a square hole size of 5 to 10 mm, and a warp and weft breaking strength of 700 to 2,100 N / 50 mm. The medium alkali glass fiber mesh cloth 104 can be used to reduce costs.

[0030] Preferably, the ZrO2 content in the alkali-resistant coating glue is 15-25%, the length is 0-20000mm, the width is 900-1750mm, the square hole mesh is 5-10mm, the warp and weft breaking strength is 700-2100N / 50mm, and the alkali-resistant glass fiber mesh cloth 102 is used to achieve the purpose of strengthening the structure and improving the service life.

[0031] Preferably, the desulfurized gypsum plaster base layer 103 and the surface layer are 3 to 15 mm thick and are composed of desulfurized gypsum powder, fine sand, floor ash recycled powder, cellulose ether, heavy calcium powder, polyvinyl alcohol, gypsum retarder and water. The desulfurized gypsum recycled plaster mortar is prepared by replacing cement with desulfurized gypsum and replacing part of the sand in the plaster mortar floor ash, thereby achieving the M2.5 plaster mortar performance index requirements of 2.5 MPa compressive strength and 0.15 MPa tensile bonding strength, and having a significant carbon emission reduction effect.

[0032] When a wall plastering structure of this embodiment is used, the feasibility and economy of carbon emission reduction technology for indoor plastering mortar are developed and applied, thereby minimizing resource consumption and environmental costs, achieving sustainable economic and social development, and crushing the hardened ground ash and using it as fine aggregate, which not only saves materials and reduces engineering costs, but also is conducive to civilized construction management, and can also reduce the emission of construction waste and alleviate environmental pressure; in the main body 1, the desulfurized gypsum recycled plastering mortar prepared by replacing cement with desulfurized gypsum and replacing part of the sand with ground ash of plastering mortar meets the performance index requirements of M2.5 plastering mortar with compressive strength of 2.5MPa and tensile bonding strength of 0.15MPa, and has a significant carbon emission reduction effect, so that the device has the characteristics of small plastic deformation value, small drying shrinkage value, high tensile strength, high toughness, etc., and is not easy to cause cracking of the plaster surface, thereby improving the practicality of the device.

[0033] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A wall plastering structure, comprising a main body (1) and a wall base surface layer (2), characterized in that: The main body structure (1) is located above the wall base surface layer (2), and the wall base surface layer (2) is located at the bottom end of the main body structure (1); The main body (1) comprises an interface coating (101), an alkali-resistant glass fiber mesh cloth (102) and a desulfurized gypsum plaster bottom layer (103); the top of the wall base surface layer (2) is tightly fitted with the interface coating (101); the top of the interface coating (101) is tightly fitted with the alkali-resistant glass fiber mesh cloth (102); the top of the alkali-resistant glass fiber mesh cloth (102) is tightly fitted with the desulfurized gypsum plaster bottom layer (103); the top of the desulfurized gypsum plaster bottom layer (103) is tightly fitted with the medium-alkali glass fiber mesh cloth (104); the top of the medium-alkali glass fiber mesh cloth (104) is tightly fitted with the desulfurized gypsum plaster surface layer (105); and the top of the desulfurized gypsum plaster surface layer (105) is tightly fitted with a finishing layer (106).

2. A wall plastering structure according to claim 1, characterized in that: The wall base layer (2) is generally made of concrete or block wall, both of which are alkaline materials.

3. A wall plastering structure according to claim 1, characterized in that: The medium alkali glass fiber mesh cloth (104) has a length of 0 to 20,000 mm, a width of 900 to 1,750 mm, a square hole size of 5 to 10 mm, and a warp and weft breaking strength of 700 to 2,100 N / 50 mm.

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