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Heat preserving sheet of coal ash

A technology of thermal insulation board and fly ash, applied in the field of building materials, can solve the problems of insufficient strength and limited thermal insulation effect, etc.

Inactive Publication Date: 2008-08-20
BEIJING HENGYECUN S&T
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this kind of board is that the strength is not high enough, and the insulation effect is limited to a certain extent.

Method used

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  • Heat preserving sheet of coal ash

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Fly ash: 200 kg;

[0025] Lightly burned magnesium powder: 100 kg;

[0026] Oxalic acid: 1 kg;

[0027] Glass fiber: 5 kg;

[0028] Magnesium chloride aqueous solution of 32 degrees Baume: 75 kilograms;

[0029] Water reducer: 0.1 kg;

Embodiment 2

[0031] Fly ash: 200 kg;

[0032] Lightly burned magnesium powder: 150 kg;

[0033] Oxalic acid: 2 kg;

[0034] Glass fiber: 15 kg;

[0035] Magnesium chloride aqueous solution of 28-32 degrees Baume: 40 kg;

[0036] Water reducer: 0.2 kg;

[0037] Iron ore tailings sand: 50 kg.

Embodiment 3

[0039] Fly ash: 200 kg;

[0040] Lightly burned magnesium powder: 120 kg;

[0041] Oxalic acid: 1.5 kg;

[0042] Glass fiber: 10 kg;

[0043] Magnesium chloride aqueous solution of 28-32 degrees Baume: 50 kg;

[0044] Water reducing agent: 0.15 kg;

[0045] Stone powder: 30 kg.

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Abstract

The invention relates to a coal-ash thermal insulating plate and is formed by mixing, pouring and curing foaming pulp and slurry in a die; wherein, the slurry comprises the main raw materials with the following ratio: 100 to 150 portions of light-burnt magnesium powder, 200 portions of coal ashes, 1 portion to 2 portions of oxalic acid and 5 to 15 portions of glass fiber, and magnesium chloride water solution with the baume degrees of 28 to 32 and the adding amount of 40 to 75 portions; animal protein type foaming agents are preferably chosen as the foaming agents with the foaming size controlled between 0.1 to 1mm; the foaming pulp and the slurry are maintained in a natural way after being poured. By adopting the reasonable raw materials, the coal-ash thermal insulating plate improves the anti-compression strength of the plate and is beneficial to increasing the foaming amount, reducing the plate density and improving the thermal insulation performance.

Description

technical field [0001] The invention relates to a fly ash thermal insulation wall board, which belongs to the technical field of building materials. Background technique [0002] Existing thermal insulation boards are mostly formed by pouring foamed concrete into a mold to solidify. The concrete slurry is made of cement as the main raw material, and the foaming agent is used to make foam slurry through a foaming machine. The concrete slurry and foam slurry are mixed and poured on In the mold, the plate is formed after natural curing and solidification, and the purpose of heat preservation is realized through the foam heat insulation effect in the plate. The disadvantage of this kind of board is that the strength is not high enough, and the thermal insulation effect is limited to a certain extent. Contents of the invention [0003] In order to overcome the defects of the prior art, the present invention provides a fly ash thermal insulation board, which has high strength a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/32C04B18/08C04B24/04C04B14/42C04B38/10
CPCC04B2111/28C04B28/32Y02W30/91C04B14/06C04B14/42C04B18/08C04B18/125C04B24/06C04B38/106C04B2103/302
Inventor 王丽
Owner BEIJING HENGYECUN S&T
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