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Light-weight calcium silicate plate and preparation method thereof

A calcium silicate board, light-weight technology, applied in the field of building materials, can solve the problems of reduced strength and density of calcium silicate board, and achieve the effect of low density, increased cost and simple process

Active Publication Date: 2013-12-18
WUHAN BUILDING MATERIAL IND DESIGN & RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the strength of the prepared calcium silicate board decreases with the decrease of density.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: The raw material formula is as follows (by mass percentage): diatomite (siliceous filler) 44.4% (200 mesh sieve surplus is 0.6wt%, Northeast Asia New Building Materials Co., Ltd.); Cement 35.7% (Huaxin Cement Co., Ltd., PO42.5); Lime 4.4% (CaO content > 65wt%, 200 mesh sieve balance < 20wt%, Jianmei Lime Products Non-metallic Raw Materials Co., Ltd.); pulp fiber 6.7% (retain long fiber length of 1.6- 2.7mm, American New Leaf Filter Co., Ltd.); wollastonite 4.4% (residue on 200 mesh sieve <1wt%, Jiangxi Xinyu Siyuan Mining Co., Ltd.); bentonite 4.4% (residue on 200 mesh sieve <10wt%, Zhejiang Sanding Co., Ltd.).

[0028] The preparation method of the light calcium silicate board of above-mentioned embodiment 1, comprises the steps:

[0029] 1) According to the design formula, the pulp fiber is measured and sent to the refiner for loosening, and it is ready for use when the degree of knocking is 31-34SR;

[0030] 2) Measuring the above-mentioned bentonite ...

Embodiment 2

[0035] Embodiment 2: raw material formula is as follows (by mass percentage): diatomite 22.2% (200 mesh sieve surplus is 0.6wt%, Northeast Asia New Building Materials Co., Ltd.); Quartz sand 22.2% (SiO 2 content>60wt%, 200 mesh sieve balance 65wt%, 200 mesh sieve balance <20wt%, Jianmei Lime Products Non-metallic Raw Materials Co., Ltd.)); pulp fiber 6.7% (retain long fiber length of 1.6-2.7mm, American New Leaf Filter Co., Ltd.); wollastonite 4.4% (200 mesh sieve balance <1wt%, Jiangxi Xinyu City Siyuan Mining Co., Ltd.); bentonite 4.4% (200 mesh sieve balance <10wt%, Zhejiang Sanding Co., Ltd.).

Embodiment 3

[0036] Embodiment 3: The raw material formula is as follows (by mass percentage): Diatomite 22.2% (200 mesh sieve balance is 0.6wt%, Northeast Asia New Building Materials Co., Ltd.); Kaolin 22% (SiO 2 content>60wt%, 200 mesh sieve balance 65wt%, 200 mesh sieve balance <20wt%, Jianmei Lime Products Non-metallic Raw Materials Co., Ltd.); pulp fiber 7.2% (retaining long fiber length of 1.6-2.7mm, American New Leaf Filter Co., Ltd.); wollastonite 5% (residue on 200 mesh sieve <1 wt%, Jiangxi Xinyu Siyuan Mining Co., Ltd.); sepiolite 3.5% (200 mesh sieve balance <10wt%, Shijiazhuang Kexin Building Materials Co., Ltd.).

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PUM

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Abstract

The invention relates to a light-weight calcium silicate plate and a preparation method thereof. The light-weight calcium silicate plate comprises the following components in percentage by mass: 11-44.4% of siliceous filler, 30-40% of cement, 4.4% of calcific filler, 6-10% of fiber material, 3-5% of inorganic filler and 3-10% of reaction assistant, wherein the siliceous filler contains a light-weight siliceous material accounting for 22.2-44.4% of the total mass of the light-weight calcium silicate plate; and the sum of the mass percents of the components is 100%. According to the invention, the light-weight calcium silicate plate having low density and high strength is prepared through a slurry flow process by completely using high-activity amorphous kieselguhr instead of the traditional quartz sand as the siliceous material; and the process is simple and can be completed according to the existing technical process without changing the original calcium silicate plate production line and production conditions, and the production process does not increase the cost and can still achieve favorable effect.

Description

technical field [0001] The invention relates to a lightweight calcium silicate board with low density, high strength and no asbestos and a preparation method thereof, belonging to the field of building materials. Background technique [0002] Calcium silicate board is a kind of green and environmentally friendly building board made of calcium material, silicon material and reinforcing fiber as the main material, which is made by flow slurry or copying molding, autoclaving and curing. It has high strength, light weight, moisture resistance, and Mildew, moth-proof, fire-proof and other excellent properties, at the same time, its stable performance, small deformation, etc., is widely used in construction projects in developed countries in the world due to its superior material properties, and its application range is becoming wider and wider. It has gradually developed into one of the leading materials for panels in the construction field. [0003] At present, the development ...

Claims

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Application Information

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IPC IPC(8): C04B28/00
Inventor 郝佳瑞徐征姚元君吴卫平刘欢袁勇许晓宏丁亚斌李项兴刘勇勇秦贺胜邓胜天
Owner WUHAN BUILDING MATERIAL IND DESIGN & RES INST
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