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Foam cement warming plate, and composition and method for manufacturing the same

A technology for foamed cement and its production method, which is applied in the field of making its composition and foamed cement insulation board, can solve the problem of high strength of foamed cement, limit the application and development of foamed cement, and achieve the effect of increasing costs

Active Publication Date: 2014-06-04
CHINA SHENHUA ENERGY CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the existing production of foamed cement, the strength of foamed cement has always been a big problem, which limits the application and development of foamed cement

Method used

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  • Foam cement warming plate, and composition and method for manufacturing the same
  • Foam cement warming plate, and composition and method for manufacturing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Each component was weighed according to the parts by weight in the following Table 1, totaling 10kg. Wherein the binder is water-based epoxy resin emulsion with a viscosity of 800-1500.

[0035] Put the weighed fly ash aluminum extraction residue, cement, foam stabilizer, water reducer and reinforcing fiber into the mixer and stir at a stirring speed of 800r / min for 10min to form the first mixture; Add water and binder, and stir for 4 minutes to form the second mixture; finally, add foaming agent to the mixer, and stir for 5 seconds to make a mixed slurry. Pour the mixed slurry into a mold to foam, place it for 9 hours, remove the mold, and cure it at room temperature for 28 days to obtain the foamed cement insulation board of Example 1.

Embodiment 2

[0036] Example 2 Each component was weighed according to the parts by weight in the following Table 1, totaling 10kg. Wherein the binder adopts water-based epoxy resin emulsion with a viscosity of 800-1500.

[0037] Put the weighed fly ash aluminum extraction residue, cement, foam stabilizer, water reducer and reinforcing fiber into the mixer and stir at a stirring speed of 800r / min for 10min to form the first mixture; Add water and binder, and stir for 5 minutes to form the second mixture; finally, add hydrogen peroxide foaming agent to the mixer, and stir for 6 seconds to make a mixed slurry. Pour the mixed slurry into a mold for foaming, place it for 10 hours, remove the mold, and maintain it at room temperature for 28 days to obtain the foamed cement insulation board of Example 2.

Embodiment 3

[0039] Each component was weighed according to the parts by weight in the following Table 1, totaling 10kg. Wherein the binder is water-based epoxy resin emulsion with a viscosity of 800-1500.

[0040] Put the weighed fly ash aluminum extraction residue, cement, foam stabilizer, water reducer and reinforcing fiber into the mixer and stir at a stirring speed of 800r / min for 10min to form the first mixture; Add water and binder, and stir for 7 minutes to form the second mixture; finally, add foaming agent to the mixer, and stir for 6 seconds to make a mixed slurry. Pour the mixed slurry into a mold for foaming, remove the mold after standing for 8 hours, and maintain at room temperature for 28 days to obtain the foamed cement insulation board of Example 3.

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Abstract

The invention provides a foam cement warming plate, and a composition and a method for manufacturing the same. A composition for manufacturing the foam cement warming plate comprises, by weight, 59-74 parts of cement, 25-40 parts of residues after extracting aluminum from fly ash, 2-8 parts of a binding agent, 5-7 parts of a foaming agent, 0.5-2 parts of a foam stabilizer and 40-60 parts of water. In the composition provided by the invention, silicon oxide and aluminium oxide in the residues after extracting aluminum from fly ash are subjected to a hydration reaction with calcium hydroxide released by hydration of the cement to form a hydraulic material. Meanwhile, 2-8 parts by weight of the binding agent are used to increase the strength of the manufactured foam cement warming plate. The foam stabilizer and the foaming agent can form a lot of pores in the foam cement warming plate. The foam cement warming plate manufactured by using the above composition can reach requirements of main performance indexes of I-type foam cement warming plate in Su JG / T041-2011 (technical description for external thermal insulation systems of composite foam cement panel).

Description

technical field [0001] The invention relates to the field of building materials, in particular to a foamed cement insulation board, a composition for making it and a manufacturing method thereof. Background technique [0002] Fly ash is the fine ash collected from the flue gas after coal combustion. It is the main solid waste discharged from coal-fired power plants. If a large amount of fly ash is not treated, it will generate dust and pollute the atmosphere; if discharged into The water system can cause river silting, and the toxic chemicals in it can cause harm to humans and organisms. In recent years, it has been found that the content of aluminum in fly ash in some areas is relatively high, which can be used as a new aluminum resource. Extracting aluminum from fly ash can turn fly ash into treasure, which has good social and economic benefits, but the waste of a large amount of residual residue after extracting aluminum will still cause secondary pollution. [0003] Du...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B38/02
Inventor 顾大钊严春杰周俊范龙王永旺李印昌郭昭华董宏
Owner CHINA SHENHUA ENERGY CO LTD