A ceramic tile paving mortar and its preparation method

Abstract

This invention discloses a ceramic tile paving mortar and its preparation method, relating to the field of building materials technology. The method involves feeding manufactured sand, cement, adhesive, waterproofing agent, and early-strength agent into a three-dimensional mixer to obtain the ceramic tile paving mortar. By adding early-strength agent, tricalcium phosphate, and blast furnace slag powder, the fluidity of the paving mortar can be improved, enhancing its impermeability. Combined with citric acid and dodecylphenol, the density of the gel formed by the early hydration reaction is promoted, enhancing the strength of the cured product and improving the fire resistance and waterproofing of the building.

Description

Technical Field

[0001] This invention relates to the field of building materials technology, specifically to a ceramic tile paving mortar and its preparation method. Background Technology

[0002] Currently, tiles are typically fixed on-site using a wet mortar application method. Generally, the mortar hardens within 2 hours after application, and walking on it is possible after 48 hours. Under normal room temperature and humidity conditions, it takes 4-5 days to dry completely. Care must be taken for 24 hours after application, and walking on the tiles during this period should be avoided to prevent affecting the adhesion quality. Therefore, the tile installation process is lengthy. Furthermore, the high mud content of river sand in the mortar makes it prone to hollowing and cracking during installation. Additionally, if there are leaks in the underlying waterproofing layer, water can seep through the mortar layer and escape from the tile joints, causing the outer layer of the wall to peel off. Prolonged immersion in water can also cause tiles to loosen or even fall off, severely impacting people's living experience. Summary of the Invention

[0003] The first technical problem to be solved by the present invention is to provide a tile laying mortar that is less prone to hollowing and cracking during tile laying, and at the same time has a waterproof effect, thus protecting the tiles and the wall surface.

[0004] To solve the first technical problem mentioned above, the technical solution of the present invention is:

[0005] A type of tile paving mortar, wherein the specific formula of the tile paving mortar is as follows, in parts by weight:

[0006]

[0007] The waterproofing agent is composed of ethyl acetate, terpene resin, epoxy resin, polyamine, aromatic amine antioxidant, chloroprene, and styrene-ethylene-butene-styrene block copolymer;

[0008] The early strength agent is composed of tricalcium phosphate, blast furnace slag powder, citric acid and dodecylphenol.

[0009] Preferably, the manufactured sand has an average particle size of five consecutive gradations: 0.25-0.35mm, 0.36-1.0mm, 1.01-1.85mm, 1.86-2.75mm, and 2.76-3.25mm.

[0010] Preferably, the cement is ordinary Portland cement with a compressive strength of 32.5 MPa.

[0011] Preferably, the adhesive is an epoxy resin adhesive.

[0012] Preferably, the mass ratio of ethyl acetate, terpene resin, epoxy resin, polyamine, aromatic amine antioxidant, chloroprene, and styrene-ethylene-butene-styrene block copolymer in the waterproofing agent is 50-70:5-15:5-20:10-20:1-5:20-30:10-15.

[0013] Preferably, the mass ratio of tricalcium phosphate, blast furnace slag powder, citric acid and dodecylphenol in the early strength agent is 25-40:20-40:5-15:5-10.

[0014] The second technical problem to be solved by the present invention is to provide a method for preparing tile paving mortar, which has a waterproof effect and protects the tiles and walls, in order to address the shortcomings of the existing technology.

[0015] To solve the second technical problem mentioned above, the technical solution of the present invention is:

[0016] A method for preparing tile paving mortar includes the following steps:

[0017] S01, Preparation of Waterproofing Agent

[0018] Ethyl acetate, epoxy resin, and styrene-ethylene-butene-styrene block copolymer were stirred at room temperature and a speed of 500-800 r / min for 20-30 min until dissolved and mixed evenly. Then, terpene resin, polyamine, aromatic amine antioxidant, and chloroprene were added, and the mixture was stirred at a speed of 150-200 r / min for 30-60 min. After drying, the powder was obtained.

[0019] The powder is placed in a ball mill and ball-milled until the particle size is 6-8 μm to obtain a waterproofing agent;

[0020] Preparation of SO2 and early strength agent

[0021] Tricalcium phosphate, blast furnace slag powder, citric acid and dodecylphenol are put into a ball mill and spheroidized until the particle size is 6-8 μm to obtain an early strength agent;

[0022] S02, Preparation of tile paving mortar

[0023] The manufactured sand, cement, adhesive, waterproofing agent and early strength agent are put into a three-dimensional mixer, the speed is controlled at 75-120 r / min, and the mixing time is 15-20 min to obtain tile paving mortar.

[0024] Due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0025] 1. Citric acid has a thickening effect, improving the fluidity and setting time of mortar, while also increasing its strength and hardness, thus enhancing its workability. Additionally, citric acid possesses certain flame-retardant and waterproof properties, improving the fire resistance and waterproofing of buildings.

[0026] 2. Citric acid has excellent solubility and chelating properties, increasing the stability of other materials in paving mortar. It also exhibits strong antioxidant and corrosion resistance. Combined with dodecylphenol, it improves the dispersion of the early-strength agent, enhancing the overall uniformity of the paving mortar. Tricalcium phosphate and blast furnace slag powder improve the fluidity of the paving mortar and enhance its impermeability. Combined with citric acid and dodecylphenol, they promote the density of the gel formed during early hydration reactions, thereby increasing the strength of the cured product.

[0027] 3. Ethyl acetate is used to dissolve styrene-ethylene-butene-styrene block copolymer. Then, terpene resin and chloroprene are added to thicken the mortar. Epoxy resin is added for activation, polyamines are used for cross-linking, and aromatic amine antioxidants are added for antioxidant effects. This greatly improves the adhesion and strength of the paving mortar. At the same time, the resulting gel has a waterproof effect, greatly increasing its impermeability. Detailed Implementation

[0028] The present invention will be further illustrated below with reference to the embodiments.

[0029] Example 1

[0030] A method for preparing tile paving mortar includes the following steps:

[0031] S01, Preparation of Waterproofing Agent

[0032] Ethyl acetate, epoxy resin, and styrene-ethylene-butene-styrene block copolymer were stirred at room temperature and 500 r / min for 20 min until dissolved and mixed evenly. Then, terpene resin, polyamine, aromatic amine antioxidant, and chloroprene were added, and the mixture was stirred at 150 r / min for another 30 min. After drying, a powder was obtained. The mass ratio of ethyl acetate, terpene resin, epoxy resin, polyamine, aromatic amine antioxidant, chloroprene, and styrene-ethylene-butene-styrene block copolymer was 50:5:5:10:1:20:10.

[0033] The powder is placed in a ball mill and ball-milled until the particle size is 6-8 μm to obtain a waterproofing agent;

[0034] Preparation of SO2 and early strength agent

[0035] Tricalcium phosphate, blast furnace slag powder, citric acid and dodecylphenol are put into a ball mill and spheroidized until the particle size is 6-8 μm to obtain an early strength agent, wherein the mass ratio of tricalcium phosphate, blast furnace slag powder, citric acid and dodecylphenol is 25:20:5:5.

[0036] S03, Preparation of tile paving mortar

[0037] The manufactured sand, cement, adhesive, waterproofing agent and early strength agent are respectively put into a three-dimensional mixer, the speed is controlled at 75 r / min, and the mixing time is 15 min to obtain tile paving mortar;

[0038] By weight:

[0039]

[0040] The manufactured sand has an average particle size of 0.25 mm, 0.36 mm, 1.01 mm, 1.86 mm, and 2.75 mm in a five-level continuous gradation.

[0041] The cement is ordinary Portland cement with a compressive strength of 32.5 MPa;

[0042] The adhesive is an epoxy resin adhesive.

[0043] Example 2

[0044] A method for preparing tile paving mortar includes the following steps:

[0045] S01, Preparation of Waterproofing Agent

[0046] Ethyl acetate, epoxy resin, and styrene-ethylene-butene-styrene block copolymer were stirred at room temperature and 600 r / min for 22 min until dissolved and mixed evenly. Then, terpene resin, polyamine, aromatic amine antioxidant, and chloroprene were added, and the mixture was stirred at 170 r / min for 40 min. After drying, a powder was obtained. The mass ratio of ethyl acetate, terpene resin, epoxy resin, polyamine, aromatic amine antioxidant, chloroprene, and styrene-ethylene-butene-styrene block copolymer was 60:10:10:15:2:25:12.

[0047] The powder is placed in a ball mill and ball-milled until the particle size is 6-8 μm to obtain a waterproofing agent;

[0048] Preparation of SO2 and early strength agent

[0049] Tricalcium phosphate, blast furnace slag powder, citric acid and dodecylphenol are put into a ball mill and ball milled until the particle size is 6-8 μm to obtain an early strength agent, wherein the mass ratio of tricalcium phosphate, blast furnace slag powder, citric acid and dodecylphenol is 30:30:10:7.

[0050] S03, Preparation of tile paving mortar

[0051] The manufactured sand, cement, adhesive, waterproofing agent and early strength agent are respectively put into a three-dimensional mixer, the speed is controlled at 100r / min, and the mixing time is 17min to obtain tile laying mortar;

[0052] By weight:

[0053]

[0054] The manufactured sand has an average particle size of 0.28 mm, 0.60 mm, 1.42 mm, 2.15 mm, and 3.01 mm in a five-level continuous gradation.

[0055] The cement is ordinary Portland cement with a compressive strength of 32.5 MPa;

[0056] The adhesive is an epoxy resin adhesive.

[0057] Example 3

[0058] A method for preparing tile paving mortar includes the following steps:

[0059] S01, Preparation of Waterproofing Agent

[0060] Ethyl acetate, epoxy resin, and styrene-ethylene-butene-styrene block copolymer were stirred at room temperature and 700 r / min for 26 min until dissolved and mixed evenly. Then, terpene resin, polyamine, aromatic amine antioxidant, and chloroprene were added, and the mixture was stirred at 180 r / min for 50 min. After drying, a powder was obtained. The mass ratio of ethyl acetate, terpene resin, epoxy resin, polyamine, aromatic amine antioxidant, chloroprene, and styrene-ethylene-butene-styrene block copolymer was 65:12:17:18:3:26:13.

[0061] The powder is placed in a ball mill and ball-milled until the particle size is 6-8 μm to obtain a waterproofing agent;

[0062] Preparation of SO2 and early strength agent

[0063] Tricalcium phosphate, blast furnace slag powder, citric acid and dodecylphenol are put into a ball mill and ball milled until the particle size is 6-8 μm to obtain an early strength agent, wherein the mass ratio of tricalcium phosphate, blast furnace slag powder, citric acid and dodecylphenol is 35:35:12:8.

[0064] S03, Preparation of tile paving mortar

[0065] The manufactured sand, cement, adhesive, waterproofing agent and early strength agent are respectively put into a three-dimensional mixer, the speed is controlled at 100r / min, and the mixing time is 18min to obtain tile paving mortar;

[0066] By weight:

[0067]

[0068] The manufactured sand has an average particle size of 0.30 mm, 0.85 mm, 1.70 mm, 2.60 mm, and 3.10 mm in a five-level continuous gradation.

[0069] The cement is ordinary Portland cement with a compressive strength of 32.5 MPa;

[0070] The adhesive is an epoxy resin adhesive.

[0071] Example 4

[0072] A method for preparing tile paving mortar includes the following steps:

[0073] S01, Preparation of Waterproofing Agent

[0074] Ethyl acetate, epoxy resin, and styrene-ethylene-butene-styrene block copolymer were stirred at room temperature and 800 r / min for 30 min until dissolved and mixed evenly. Then, terpene resin, polyamine, aromatic amine antioxidant, and chloroprene were added, and the mixture was stirred at 200 r / min for another 60 min. After drying, a powder was obtained. The mass ratio of ethyl acetate, terpene resin, epoxy resin, polyamine, aromatic amine antioxidant, chloroprene, and styrene-ethylene-butene-styrene block copolymer was 70:15:20:20:5:30:15.

[0075] The powder is placed in a ball mill and ball-milled until the particle size is 6-8 μm to obtain a waterproofing agent;

[0076] Preparation of SO2 and early strength agent

[0077] Tricalcium phosphate, blast furnace slag powder, citric acid and dodecylphenol are put into a ball mill and ball milled until the particle size is 6-8 μm to obtain an early strength agent, wherein the mass ratio of tricalcium phosphate, blast furnace slag powder, citric acid and dodecylphenol is 40:40:15:10.

[0078] S03, Preparation of tile paving mortar

[0079] The manufactured sand, cement, adhesive, waterproofing agent and early strength agent are respectively put into a three-dimensional mixer, the speed is controlled at 120 r / min, and the mixing time is 20 min to obtain tile laying mortar;

[0080] By weight:

[0081]

[0082] The manufactured sand has an average particle size of 0.35mm, 1.0mm, 1.85mm, 2.75mm and 3.25mm in a five-level continuous gradation.

[0083] The cement is ordinary Portland cement with a compressive strength of 32.5 MPa;

[0084] The adhesive is an epoxy resin adhesive.

[0085] Comparative Example 1

[0086] Based on Example 3, the 7 parts of early strength agent in step S02 were replaced with 7 parts of cement in equal amounts, while the other conditions remained unchanged.

[0087] Comparative Example 2

[0088] Based on Example 3, the epoxy resin adhesive in step S03 was replaced with DEA ​​concentrated adhesive powder, while the other conditions remained unchanged.

[0089] Comparative Example 3

[0090] Based on Example 3, the 7 parts of waterproofing agent in step S01 were replaced with 7 parts of cement in equal amounts, while the other conditions remained unchanged.

[0091] Performance testing: The early-strength paving mortars obtained in Examples 1, 2, 3, and 4 and Comparative Examples 1, 2, and 3 were tested for compressive strength and impermeability under a water pressure of 0.7 MPa, in accordance with JGJ70-2009 "Basic Performance Test Methods for Building Mortar".

[0092] Table 1

[0093] 3D compressive strength (MPa) Impermeability (3h) Impermeability (6h) Example 1 4.0 impermeable impermeable Example 2 4.3 impermeable impermeable Example 3 4.5 impermeable impermeable Example 4 4.6 impermeable impermeable Comparative Example 1 0.7 impermeable permeable Comparative Example 2 2.5 impermeable impermeable Comparative Example 3 2.3 permeable permeable

[0094] As can be seen from the table, Comparative Example 1, which did not add an early-strength agent, had an extremely slow curing speed; Comparative Example 2, which used ordinary adhesive powder, also had a slow curing speed; the early-strength agent played a certain role in waterproofing and seepage prevention, but the waterproofing and seepage prevention effect was better when used in conjunction with a waterproofing agent.

[0095] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A type of tile paving mortar, characterized in that, The specific formula for the tile paving mortar is as follows, in parts by weight: The waterproofing agent is composed of ethyl acetate, terpene resin, epoxy resin, polyamine, aromatic amine antioxidant, chloroprene, and styrene-ethylene-butene-styrene block copolymer; The early strength agent is composed of tricalcium phosphate, blast furnace slag powder, citric acid and dodecylphenol.

2. The tile paving mortar as described in claim 1, characterized in that: The manufactured sand has an average particle size of 0.25-0.35mm, 0.36-1.0mm, 1.01-1.85mm, 1.86-2.75mm, and 2.76-3.25mm, which are five consecutive gradations.

3. The tile paving mortar as described in claim 1, characterized in that: The cement is ordinary Portland cement with a compressive strength of 32.5 MPa.

4. The tile paving mortar as described in claim 1, characterized in that: The adhesive is an epoxy resin adhesive.

5. The tile paving mortar as described in claim 1, characterized in that: The water-repellent agent contains ethyl acetate, terpene resin, epoxy resin, polyamine, aromatic amine antioxidant, chloroprene, and styrene-ethylene-butene-styrene block copolymer in a mass ratio of 50-70:5-15:5-20:10-20:1-5:20-30:10-15.

6. The tile paving mortar as described in claim 1, characterized in that: The mass ratio of tricalcium phosphate, blast furnace slag powder, citric acid and dodecylphenol in the early strength agent is 25-40:20-40:5-15:5-10.

7. The method for preparing ceramic tile paving mortar according to any one of claims 1-6, characterized in that... Includes the following steps: S01, Preparation of Waterproofing Agent Ethyl acetate, epoxy resin, and styrene-ethylene-butene-styrene block copolymer were stirred at room temperature and a speed of 500-800 r / min for 20-30 min until dissolved and mixed evenly. Then, terpene resin, polyamine, aromatic amine antioxidant, and chloroprene were added, and the mixture was stirred at a speed of 150-200 r / min for 30-60 min. After drying, the powder was obtained. The powder is placed in a ball mill and ball-milled until the particle size is 6-8 μm to obtain a waterproofing agent; Preparation of SO2 and early strength agent Tricalcium phosphate, blast furnace slag powder, citric acid and dodecylphenol are put into a ball mill and spheroidized until the particle size is 6-8 μm to obtain an early strength agent; S03, Preparation of tile paving mortar The manufactured sand, cement, adhesive, waterproofing agent and early strength agent are put into a three-dimensional mixer, the speed is controlled at 75-120 r / min, and the mixing time is 15-20 min to obtain tile paving mortar.

Images