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Calcium silicate building material and preparation method thereof

A building material, calcium silicate technology, applied in the field of calcium silicate building materials and its preparation, can solve the problems of high synthesis temperature, low strength, energy consumption, etc., and achieve the effect of easy-to-obtain raw materials and simple operation

Inactive Publication Date: 2020-04-10
湖南愿景住宅工业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the thermal conductivity of this type of material is very low, it has good thermal insulation performance, but its strength is low, it is difficult to be used in fields other than thermal insulation, and due to the higher synthesis temperature, more energy is consumed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment includes the following steps:

[0026] (1) Grinding of raw materials: Grind massive silica sand and quicklime into 100 kg of silica sand powder with a fineness of 800 mesh and 93 kg of quicklime powder with a fineness of 300 mesh;

[0027] (2) Stirring and mixing: Prepare 965 kg of clean water in a reactor with a stirring device, turn on the stirring device, add the silica sand powder and calcium oxide powder obtained in step (1) into the clean water, and continue stirring to obtain a mixed material;

[0028] (3) High-pressure reaction: put the mixed material obtained in step (2) into the reactor and raise the temperature to 120°C within 2 hours, then keep the temperature constant for 6 hours, then lower the temperature and release the pressure within 2 hours until the pressure inside and outside the reactor is balanced. Then filter the mixture in the kettle with a filter device, filter out the water, and dry it until the water content is 5% to obtain na...

Embodiment 2

[0034] This embodiment includes the following steps:

[0035] (1) Grinding of raw materials: Grind massive silica sand and quicklime into 100 kg of silica sand powder with a fineness of 600 mesh and 93 kg of quicklime powder with a fineness of 400 mesh;

[0036] (2) Stirring and mixing: Prepare 1158 kg of clean water in a high-pressure reactor with a stirring device, turn on the stirring device, add the silica sand powder and calcium oxide powder obtained in step (1) into the clean water, and continue stirring to obtain a mixed material;

[0037] (3) High-pressure reaction: put the mixed material obtained in step (2) into a high-pressure reactor and raise the temperature to 140°C within 2 hours, then keep the temperature constant for 7 hours, then cool down and release the pressure within 2 hours until the pressure inside and outside the reactor is balanced , and then filter the mixture in the kettle with a filter device, filter out moisture, and continue to dry until the mois...

Embodiment 3

[0043] This embodiment includes the following steps:

[0044] (1) Raw material grinding: Grind massive silica sand and quicklime respectively into 100 kg of silica sand powder with a fineness of 400 mesh, and 95 kg of quicklime powder with a fineness of 300 mesh;

[0045] (2) Stirring and mixing: Prepare 1170 kg of clear water in a high-pressure reactor with a stirring device, turn on the stirring device, add the silica sand powder and calcium oxide powder obtained in step (1) into the clean water, and continue stirring to obtain a mixed material;

[0046] (3) High-pressure reaction: put the mixed material obtained in step (2) into a high-pressure reactor and raise the temperature to 150°C within 2 hours, then keep the temperature constant for 7 hours, then cool down and release the pressure within 2 hours until the pressure inside and outside the reactor is balanced , and then filter the mixture in the kettle with a filter device, filter out moisture, and continue to dry unti...

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PUM

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Abstract

The invention provides a calcium silicate building material. A preparation method for the calcium silicate building material comprises the following steps: (1) grinding of raw materials; (2) stirringand mixing; (3) a high-pressure reaction; (4) adding of fibers; and (5) compression molding. According to the invention, raw materials are easy to obtain, and operation is simple; silica sand powder and quicklime powder are fully reacted through a high-pressure reaction; compression molding can be achieved after reinforced fibers are added; and burrs are trimmed after demolding so as to obtain thecalcium silicate building material. The material has multiple purposes, and can be made into building materials in the forms of plates, decorative lines, door pockets, window pockets, eaves tiles, building decorative parts with concave-convex patterns and the like through corresponding molds.

Description

technical field [0001] The invention relates to a calcium silicate building material and a preparation method thereof, in particular to a calcium silicate building material and a preparation method thereof. Background technique [0002] At present, the calcium silicate board manufactured by silicon-calcium reaction is widely used in the construction industry, but its disadvantage is that it is brittle and easy to break, and it is inconvenient to saw, nail and plan. Artificial wood board has good toughness, but its formaldehyde emission has caused market concern, and its water resistance is poor, so its application in wet conditions is limited. Its combustion performance is classified as a combustible material, and its use in places with fire protection requirements is also restricted. [0003] CN 107673721 A A fiber-reinforced building material, comprising the following raw materials in parts by weight: 100-150 parts by weight of sludge waste, 20-30 parts by weight of vermi...

Claims

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Application Information

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IPC IPC(8): C04B26/00
CPCC04B26/00C04B2111/00008C04B2201/50C04B14/043C04B18/26C04B14/44C04B18/265C04B18/248
Inventor 欧阳忠凯谢志鹏谢新林
Owner 湖南愿景住宅工业科技有限公司
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