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Light-weight high-strength calcium silicate board for coating/film covering and preparation method of light-weight high-strength calcium silicate board

A calcium silicate board, calcium silicate technology, applied in the field of building materials, can solve the problems of limiting the wide application of low-density calcium silicate board, lack of evaluation and improvement of bonding strength of lightweight boards, etc., to achieve high internal bonding strength, fireproof Excellent performance and high strength effect

Inactive Publication Date: 2021-07-02
天津中晶建筑材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing patents all focus on improving the raw materials for board preparation, board strength and process, but they do not combine the requirements of downstream coating and film coating processes on the performance of special board materials, that is, they lack the evaluation and improvement of the internal bonding strength of lightweight boards. As a result, low-density calcium silicate boards are mostly used in foundation linings, limiting the wide application of low-density calcium silicate boards

Method used

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  • Light-weight high-strength calcium silicate board for coating/film covering and preparation method of light-weight high-strength calcium silicate board
  • Light-weight high-strength calcium silicate board for coating/film covering and preparation method of light-weight high-strength calcium silicate board
  • Light-weight high-strength calcium silicate board for coating/film covering and preparation method of light-weight high-strength calcium silicate board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] This embodiment provides a lightweight high-strength silicate plate, and the raw material component is percentage of weight, including: silica material quartz powder 24.5%, calcium material coating 26.4%, cement 19.7%, calcium silicate crystal, 25.5%, The fiber pulp is 7.6%, the inorganic packing silica grayite 3.3% and the plate inorganic aid bentonite 3%.

[0029] Among them, the preparation method of calcium silicate crystals includes the step of: mixing the silicon feedstock quartz powder and calcium raw material to mix lime by mass ratio 1: 1.2, and the mixture is prepared in a stirred reaction kettle, preparation temperature 185 ° C, After the preparation is complete;

[0030] The method of preparation of the fiber slurry includes the steps: the fiber material pulp fibers are first broken in the pulper, and the fragmentation concentration of the fiber slurry is 5.5%, and then the grinding machine is performed by the abrasive machine, the grinding concentration is 4.2%...

Embodiment 2

[0037]This embodiment provides a lightweight high-strength silicate plate, and the raw material component is percentage of weight, including: silica material quartz powder 24.5%, calcium material coating 26.4%, cement 19.7%, calcium silicate crystal, 25.5%, The fiber pulp is 7.6%, the inorganic packing silica grayite 3.3% and the plate inorganic aid bentonite 3%.

[0038] Among them, the method of preparing the calcium silicate crystal comprises the step of: mixing the silicon raw material silica ash and calcium raw lime by mass ratio 1: 1, mixing material for 4h prefabrication in a stirred reaction kettle, preparation temperature 175 ° C, After the preparation is complete;

[0039] The method of preparation of the fiber slurry includes the steps: the fiber material pulp fibers are first broken in the pulper, and the fragmentation concentration of the fiber slurry is 5.5%, and then the grinding machine is performed by the abrasive machine, the grinding concentration is 4.2% to obt...

Embodiment 3

[0046] This embodiment provides a lightweight high-strength silicate plate, and the raw material component is percentage of weight, including: silica material powder 25.4%, calcium material coating 25.2%, cement 22.6%, calcium silicate crystals, 12.8%, The fiber pulp is 7.5%, the inorganic filler silica grain 3.5% and the plate-inorganic aid bentonite 3%.

[0047] Among them, the method of preparing the calcium silicate crystal comprises the step of mixing the silica raw material powder and calcium raw plascate is mixed by mass than 1: 1, and the mixture is prefabricated in a stirred reaction kettle, preparation temperature 180 ° C, After the preparation is complete;

[0048] The method of preparation of the fiber slurry includes the steps: the fiber material pulp fibers are first broken in the pulper, and the fragmentation concentration of the fiber slurry is 5.5%, and then the grinding machine is performed by the abrasive machine, the grinding concentration is 4.2% to obtain fib...

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Abstract

The invention relates to a light high-strength calcium silicate board for coating / laminating and a preparation method thereof, the calcium silicate board comprises the following raw material components by weight: 22%-33% of a siliceous material, 20%-30% of a calcareous material, 8%-30% of cement, 8%-20% of calcium silicate crystals, 5%-15% of fiber pulp, 3%-10% of an inorganic filler and 2%-6% of a board inorganic auxiliary agent; the preparation method comprises the following steps: adding water into all the raw material components, uniformly mixing, then preparing a light calcium silicate board blank through a beater-addition process, then curing, then carrying out an autoclaved reaction to obtain a light calcium silicate board semi-finished product, then drying the moisture to be below 10wt%, and then sanding and trimming to obtain a light high-strength calcium silicate board finished product. The calcium silicate board provided by the invention is a high-quality board which is low in density, high in strength, good in dimensional stability, high in internal bonding strength and excellent in fireproof performance, the density of the calcium silicate board is 0.6-1.0 g / cm < 3 >, the breaking strength of the calcium silicate board is 10 MPa or above, the internal bonding strength of the calcium silicate board is 1.6 MPa or above, and the technological requirements of coating, film covering and the like are met.

Description

Technical field [0001] The present invention belongs to the technical field of building materials, and more particularly to a light high-strength high-strength silicate plate having a density, high strength and satisfying the coating / film, and the preparation method thereof. Background technique [0002] The calcium silicate plate is a healthy and environmentally friendly plate made of calcium material, silicon material, and enhancement fiber, and has a healthy environmental protection plate made of cardiac, and has a healthy environmental protection sheet made of steaming and maintenance. Mildew, fire prevention, size stability, etc., are widely used in construction projects in the world, due to its extensive application, the demand is huge, and has gradually developed one of the leading materials in the field of civil, public blocks. [0003] At present, the development trend of the world's plate industry is based on the production of light, high strength and energy-saving an...

Claims

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Application Information

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IPC IPC(8): C04B28/02
CPCC04B28/02C04B20/008C04B2201/50C04B2201/20
Inventor 张景明于海伦卫峥峥高帅
Owner 天津中晶建筑材料有限公司
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