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Modified cement tile and preparation method thereof

A cement tile and cement technology, applied in the field of building materials, can solve problems such as the reduction of the anti-seepage effect, and achieve the effects of outstanding substantive characteristics, low water absorption, and resistance to repeated water absorption and water loss.

Inactive Publication Date: 2017-01-18
浙江东民科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the application process, it was found that although the water absorption rate of the cement tile prepared by the patented method was ≤10%, after repeated 200 cycles of water absorption and dehydration, the water absorption rate was as high as 20%, and the anti-seepage effect was significantly reduced.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1: the preparation of cement tile

[0026] Raw material weight ratio:

[0027] Cement, 100 parts; sand, 120 parts; modified slag, 30 parts; water-repellent agent, 1.3 parts; water, 30 parts. The cement is Portland cement, and sulphoaluminate cement can also be used. The sand is natural sand with a fineness modulus of 2.7 and a mud content of 1.0%. Described hydrophobic agent is calcium stearate, also can use magnesium stearate.

[0028] The preparation method of modified slag:

[0029] Step S1, select the slag: select the loose or blocky residue after burning lump coal or granular coal that has not been water-quenched, and the fineness modulus of the slag is 3.8;

[0030] Step S2, put the slag into the reaction kettle, stir and heat to 70°C, then add water, glycerol, vinyltrimethoxysilane, polymethacrylate and styrene-acrylic emulsion with a solid content of 46-48wt% while stirring , after the temperature rises to 85°C, keep stirring and react for 3 hour...

Embodiment 2

[0036] Embodiment 2: the preparation of cement tile

[0037] Raw material weight ratio:

[0038] Cement, 80 parts; sand, 75 parts; modified slag, 5 parts; water-repellent agent, 1 part; water, 20 parts. The cement is Portland cement, and sulphoaluminate cement can also be used. The sand is a natural sand with a fineness modulus of 2.3 and a mud content of 0. Described hydrophobic agent is calcium stearate, also can use magnesium stearate.

[0039] The preparation method of modified slag:

[0040] Step S1, select the slag: select the loose or lumpy residue after burning lump coal or granular coal that has not been water-quenched, and the fineness modulus of the slag is 3.5;

[0041] Step S2, put the slag into the reaction kettle, stir and heat to 60°C, then add water, glycerol, vinyltrimethoxysilane, polymethacrylate and styrene-acrylic emulsion with a solid content of 46-48wt% while stirring , after the temperature rises to 80°C, keep stirring and react for 4 hours; for e...

Embodiment 3

[0047] Embodiment 3: the preparation of cement tile

[0048] Raw material weight ratio:

[0049] Cement, 130 parts; sand, 165 parts; modified slag, 60 parts; water-repellent agent, 1.6 parts; water, 39 parts. The cement is Portland cement, and sulphoaluminate cement can also be used. The sand is natural sand with a fineness modulus of 3.0 and a mud content of 2.0%. Described hydrophobic agent is calcium stearate, also can use magnesium stearate.

[0050] The preparation method of modified slag:

[0051] Step S1, select the slag: select the loose or lumpy residue after burning lump coal or granular coal that has not been water-quenched, and the fineness modulus of the slag is 4.0;

[0052] Step S2, put the slag into the reaction kettle, stir and heat to 80°C, then add water, glycerol, vinyltrimethoxysilane, polymethacrylate and styrene-acrylic emulsion with a solid content of 46-48wt% while stirring , after the temperature rises to 90°C, keep stirring and react for 2 hours...

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Abstract

The invention discloses a modified cement tile and a preparation method thereof, and the modified cement tile is prepared from the following raw materials by weight: 80-130 parts of cement; 75-165 parts of sand; 5-60 parts of modified furnace slag; 1-1.6 parts of a water repellent agent and 20-39 parts of water, a preparation method of the modified furnace slag is as follows: loose or blocky non-water-quenched slag obtained after combustion of block coal or granular coal is selected, and furnace slag fineness modulus is 3.5 to 4; the furnace slag is put into a reactor, and stirred and heated to 60 to 80 DEG C, water, glycerol, vinyl trimethoxy silane, polymethacrylate and styrene acrylic emulsion with the solid content of 46-48 wt % are added while stirring, and after temperature rises to 80 to 90 DEG C, heat preservation and stirring are performed for reaction for 2 to 4 hours; every 100 parts by weight of the furnace slag is corresponding to 25-35 parts of the water, 5-15 parts of the glycerol, 20-30 parts of the vinyl trimethoxy silane, 5-15 parts of the polymethacrylate and 20-30 parts of the styrene acrylic emulsion; and the modified cement tile can be obtained by drying at 220-260 DEG C for 3-5 hours. The modified cement tile has low water absorption rate, and can resist repeated water absorption and water loss.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to an improved cement tile and a preparation method thereof. Background technique [0002] Tile is an important roof waterproof material, generally fired with clay, also made of cement and other materials, and its shape is arched, flat or half cylindrical. The colors are mainly brick red and gray, which are applied to buildings, not only for heat insulation and rainproof, but also beautiful and tidy, with high durability. Cement tiles are tiles mainly made of cement as raw material. [0003] The anti-seepage effect of cement tiles is an important parameter to evaluate the quality of cement tiles. [0004] The patent application number 200910090064.4 for environmentally friendly cement tiles mixed with slag and its preparation method discloses an improved method for making cement tiles. The cement tiles realize the reuse of slag waste and are economical and environment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B28/06C04B20/02C04B18/10E04D1/00C04B111/27
CPCC04B20/023C04B28/04C04B28/06C04B2111/27E04D1/00C04B14/06C04B18/10C04B24/085Y02W30/91
Inventor 陈依林
Owner 浙江东民科技有限公司