Calcium silicate plate prepared by using waste granite and preparation method thereof

A technology of calcium silicate board and waste material, which is applied in the field of calcium silicate board, can solve the problems of high price and achieve the effects of reducing consumption, saving cost and easily obtaining raw materials

Inactive Publication Date: 2018-02-13
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the fibers used in calcium silicate boards are pulp fibers imported from abroad, which are expensive; the calcium materials used are mainly cement

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A calcium silicate board using granite waste and its preparation method is characterized in that it is prepared from the following raw materials in parts by weight: 75 parts of Portland cement, 18 parts of granite powder, 22 parts of ultrafine quartz sand, poly 0.6 parts of sodium acrylate, 0.3 parts of wood pulp fiber, and 21 parts of water.

[0025] As mentioned above, the ratio of Portland cement, granite powder and ultra-fine quartz sand is configured according to the calcium-silicon ratio, and the calcium-silicon ratio ranges from 1.0 to 1.5.

[0026] As mentioned above, the granite powder is the powder obtained by passing the granite waste through a disc mill and a ball mill, sieved with a 200-mesh sieve, and the sieved residue is less than 5%.

[0027] As described above, the disc mill and the ball mill grind for 25 minutes and 35 minutes respectively, and the particle size of the obtained granite powder ranges from 0.2 to 200 μm.

[0028] Described, the molecul...

Embodiment 2

[0038] A calcium silicate board using granite waste and its preparation method is characterized in that it is prepared from the following raw materials in parts by weight: 85 parts of Portland cement, 22 parts of granite powder, 24 parts of superfine quartz sand, poly 0.7 parts of sodium acrylate, 0.5 parts of wood pulp fiber, and 23 parts of water.

[0039] As mentioned above, the ratio of Portland cement, granite powder and ultra-fine quartz sand is configured according to the calcium-silicon ratio, and the calcium-silicon ratio ranges from 1.0 to 1.5.

[0040] As mentioned above, the granite powder is the powder obtained by passing the granite waste through a disc mill and a ball mill, sieved with a 200-mesh sieve, and the sieved residue is less than 5%.

[0041] As described above, the disc mill and the ball mill grind for 25 minutes and 35 minutes respectively, and the particle size of the obtained granite powder ranges from 0.2 to 200 μm.

[0042] Described, the molecul...

Embodiment 3

[0052] A calcium silicate board using granite waste and its preparation method is characterized in that it is prepared from the following raw materials in parts by weight: 92 parts of Portland cement, 28 parts of granite powder, 26 parts of superfine quartz sand, poly 0.8 parts of sodium acrylate, 0.6 parts of wood pulp fiber, and 25 parts of water.

[0053] As mentioned above, the ratio of Portland cement, granite powder and ultra-fine quartz sand is configured according to the calcium-silicon ratio, and the calcium-silicon ratio ranges from 1.0 to 1.5.

[0054] As mentioned above, the granite powder is the powder obtained by passing the granite waste through a disc mill and a ball mill, sieved with a 200-mesh sieve, and the sieved residue is less than 5%.

[0055] As described above, the disc mill and the ball mill grind for 25 minutes and 35 minutes respectively, and the particle size of the obtained granite powder ranges from 0.2 to 200 μm.

[0056] Described, the molecul...

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Abstract

The invention discloses a calcium silicate plate prepared by using waste granite and a preparation method thereof. The calcium silicate plate is characterized by being composed of, by mass, 70-100 parts of Portland cement, 10-30 parts of granite powder, 20-28 parts of superfine quartz sand, 0.5-1.0 part of sodium polyacrylate, 0.2-0.6 part of wood pulp fiber and 15-25 parts of water. Silicon element in waste granite is fully utilized to regulate calcium-silicon ratio of the calcium silicate plate, and mechanical performance of the calcium silicate plate is improved by screening and treating raw materials. Waste granite can be recycled, and consumption of cement and quartz sand can be reduced, so that cost is saved.

Description

technical field [0001] The invention relates to the technical field of building material production, in particular to a calcium silicate board prepared from waste granite. Background technique [0002] Calcium silicate board is made of siliceous-calcium material as the main cementing material, loose short fibers such as inorganic mineral fiber or cellulose fiber as reinforcing material, after pulping, molding, and accelerated curing reaction in high temperature and high pressure saturated steam, A plate made of calcium silicate gel. At present, most of the fibers used in calcium silicate boards are pulp fibers imported from abroad, which are expensive; the calcium materials used are mainly cement. The present invention provides a calcium silicate board prepared by using granite waste, fully utilizes the silicon element in the granite waste to adjust the calcium-silicate ratio of the calcium silicate board, and improves the calcium silicate board by screening and processing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B18/12C04B41/63
CPCC04B18/12C04B28/04C04B41/009C04B41/48C04B41/63C04B2201/50C04B14/06C04B24/2641C04B16/02C04B41/4539C04B41/4543Y02W30/91
Inventor 陈明旭李来波芦令超
Owner UNIV OF JINAN
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