Preparation method of foamed cement insulation boards

A foamed cement and thermal insulation board technology, applied in the field of building materials, can solve the problems of uneven distribution, high defective rate, uneven size of bubbles, etc., and achieve the effects of good sound insulation and noise reduction, long product life and stable quality.

Active Publication Date: 2013-01-09
南通金信达建筑装饰工程有限公司
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] The existing cement foam insulation boards in the market, due to the uneven technical level, the quality is good and bad, mainly because the mold is easy to collapse during production, the size of the bubbles is uneven, the distribution is uneven, the defective rate is high, and the thermal conductivity is high. Check the strength, poor sound insulation performance, fragile and fragile
These di

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0026] Example 2

[0027] Mix 525 ordinary Portland cement, fly ash, fiber reinforced materials, and foaming stabilizing dispersant uniformly. By weight, 140 parts of cement materials, 50 parts of fly ash, and 0.5-1 parts of fiber reinforced materials are used. 4 parts of foam stabilizing dispersant. Add 100 parts of 40-60 degrees hot water to the mixed powder and stir for 10 minutes to form a slurry. Add 15 parts of foaming agent (hydrogen peroxide) to the uniformly stirred slurry, stir for 5 seconds, immediately pour it into the mold for foaming, use the greenhouse to heat and cure the molding, demold, and cure at room temperature for 24 hours, cut into decorative panels, and naturally cure After 30 days, the strength is the same as the life of the wall material, and the flame retardant performance of the foamed cement insulation board is Class A. The product performance can reach similar sulfoaluminate cement foam insulation board, and the production cost is slightly lower. ...

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PUM

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Abstract

The invention discloses a preparation method of foamed cement insulation boards, comprising the following steps: uniformly mixing gel materials, coal ashes, fiber reinforced materials and foaming stable dispersants at the first, adding hot water with the temperature of 40-60 degrees centigrade in the mixed powder to stir and form sizes; adding foaming agents such as hydrogen peroxide into the uniformly-stirred sizes; stirring uniformly; pouring into moulds to foam; keep the temperature with greenhouses; curing and forming; demoulding; maintaining at the room temperature for 24 h; cutting to form decorative plates; and forming the foamed cement insulation boards with the strength the same as the service life of materials of walls and the flame retardant property reaching grade A after curing naturally for 30 d.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a method for preparing a foamed cement insulation board for interior and exterior wall insulation decoration of buildings. Background technique [0002] With the deepening of the country's energy-saving and emission-reduction work, the promotion of building energy-saving measures and the mandatory requirements of policies, higher requirements have been put forward for the flame retardancy, heat preservation and practicability of thermal insulation and decorative materials for external wall insulation. Especially in recent years, high-rise buildings such as the fire in the CCTV new building and the fire in the teachers’ apartment in Shanghai’s Jing’an Temple have suffered heavy losses. Gongtongzi [2009] No. 46 "Interim Provisions on Fire Protection of Civil Building External Thermal Insulation System and Exterior Wall Decoration" and Gongtongzi [2011] No. 65 "Notice o...

Claims

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Application Information

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IPC IPC(8): C04B28/06C04B28/04C04B38/02C04B24/38C04B103/48
Inventor 周松涛顾建荣陆爱梅
Owner 南通金信达建筑装饰工程有限公司
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