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Cement-based microporous building material

A building material, cement-based technology, applied in the field of building materials, can solve the problems of high thermal conductivity, high bulk density of formed sheets, low thermal conductivity of manufacturing bulk density, etc., and achieve the effect of improving quality

Inactive Publication Date: 2018-10-09
桐城市景瑞建筑装饰工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the above two invention patents, "straw" and "cement" are involved, but "microporous building materials" are not involved, resulting in a large volume density and high thermal conductivity of the formed board, which is not suitable for manufacturing low volume density and heat conduction materials. Building material products with low coefficient, proper mechanical strength and good thermal performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A cement-based microporous building material provided in this embodiment, the cement-based microporous building material includes the following raw materials in parts by weight: 9 parts of wheat straw powder, 50 parts of cement, 25 parts of composite fiber material, and 10 parts of silicon fume , 15 parts of dispersant, 4 parts of recycled aggregate, and water-solid ratio of 55%.

[0032] As a preferred solution, the composite fiber material is a mixture of carbon fiber, bamboo fiber and polyvinyl alcohol fiber.

[0033] As a preferred solution, the mass ratio of the carbon fiber, bamboo fiber and polyvinyl alcohol fiber is 4:2:9.

[0034] As a preferred solution, the dispersant is compounded by a lignin-type coal-water slurry dispersant and a polycarboxylic acid-type coal-water slurry dispersant.

[0035] As preferred version, the preparation method of described lignin type coal water slurry dispersant is as follows:

[0036] (1) Dissolve the sulfonating agent in wat...

Embodiment 2

[0048] A cement-based microporous building material provided in this embodiment, the cement-based microporous building material includes the following raw materials in parts by weight: 3 parts of wheat straw powder, 65 parts of cement, 15 parts of composite fiber material, and 25 parts of silicon fume , 2 parts of dispersant, 11 parts of recycled aggregate, and 30% of water-solid ratio.

[0049] As a preferred solution, the composite fiber material is a mixture of carbon fiber, bamboo fiber and polyvinyl alcohol fiber.

[0050] As a preferred solution, the mass ratio of the carbon fiber, bamboo fiber and polyvinyl alcohol fiber is 3:7:3.

[0051] As a preferred solution, the dispersant is compounded by a lignin-type coal-water slurry dispersant and a polycarboxylic acid-type coal-water slurry dispersant.

[0052] As preferred version, the preparation method of described lignin type coal water slurry dispersant is as follows:

[0053] (1) Dissolve the sulfonating agent in wat...

Embodiment 3

[0065] A cement-based microporous building material provided in this embodiment, the cement-based microporous building material includes the following raw materials in parts by weight: 5 parts of wheat straw powder, 55 parts of cement, 17 parts of composite fiber material, and 15 parts of silicon fume , 12 parts of dispersant, 6 parts of recycled aggregate, and water-solid ratio of 43%.

[0066] As a preferred solution, the composite fiber material is a mixture of carbon fiber, bamboo fiber and polyvinyl alcohol fiber.

[0067] As a preferred solution, the mass ratio of the carbon fiber, bamboo fiber and polyvinyl alcohol fiber is 4:7:9.

[0068] As a preferred solution, the dispersant is compounded by a lignin-type coal-water slurry dispersant and a polycarboxylic acid-type coal-water slurry dispersant.

[0069] As preferred version, the preparation method of described lignin type coal water slurry dispersant is as follows:

[0070] (1) Dissolve the sulfonating agent in wat...

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Abstract

The invention belongs to the technical field of building material, and provides a cement-based microporous building material. According to a preparation method, a cement-based mixed material containing uniform micro bubbles is formed through the physical and chemical reactions among wheat straw powder, cement, and a composite fibrous material, and the effect of applied external mechanical force instirring process. The cement-based mixed material can be used for manufacturing building products with relatively low volume density, low heat conduction coefficient, appropriate mechanical strength,and excellent thermal performance, and can be used for producing microporous building material products with a density ranging from 1200 to 1300kg / m<3> and compressive strength ranging from 8 to 15MPa.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a cement-based microporous building material. Background technique [0002] Building materials are the basis of construction engineering. Its main components include cement, admixtures and aggregates, which are hardened after mixing with water. [0003] In the invention patent ZL200510114895.2 "Wheat straw cement composite wallboard and its manufacturing method", it is introduced that the wheat straw cement composite material is composed of cement, sand, fly ash, crushed wheat straw and then mixed with polymer and water. The pourable mix is ​​then shaped to make panels. In the invention patent 200710054841.0 "Manufacturing Method of Straw Cement Mixed Wood-Based Panel", it is introduced to use broken straw, modified acrylic fiber, quartz sand, fly ash, and cement to mix and stir, and then pave and press to form a panel. [0004] In the above two invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00
CPCC04B28/00C04B2201/20C04B2201/50C04B18/248C04B18/265C04B14/386C04B16/0641C04B18/146C04B2103/408C04B18/16
Inventor 黄鑫
Owner 桐城市景瑞建筑装饰工程有限公司
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