Cast-in-situs polystyrene cement composite foaming material and constructing method thereof

A technology of polystyrene foaming and polystyrene, which is applied in the field of building materials, can solve the problems of regional limitations in practicality and limited raw material resources of magnesium cement, and achieve good performance-price ratio, optimization of economic and technical indicators, and good heat preservation performance effect

Inactive Publication Date: 2004-04-21
沈阳金铠建筑科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the raw material resources of magnesium cement (light-burned magnesium and magnesium chloride) are limited, so that the practicality of this technology is limited by region

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Expandable polystyrene (Φ=1mm) is made into benzene foam particles with an average particle diameter of 4.5mm (up to 90 times) by steam foaming.

[0024] Formula: ① Polystyrene foamed grains: 2.3g; ② Water: 35g; ③ Cement: 60g;

[0025] ④ Polyvinyl alcohol: 5g; ⑤ Fly ash: 50g; ⑥ Rosin resin liquid: 2g.

[0026] In the container under stirring state according to numbering order, feed one by one, after feeding, continue to stir for 2 minutes, pour the mold molding of 7cm * 7cm * 7cm then, after 24 hours, the mold is lifted (volume 7 * 7 * 7=343cm 3 Wet bulk density = 450g / cm 3 Dry density = 396g / cm 3 ) No. 1 square test block.

Embodiment 2

[0028] Expandable polystyrene (Φ=0.8mm) is made into polystyrene expanded particles with an average particle diameter of Φ3.8mm (107 times the foaming volume) by a steam foaming method.

[0029] Formula: ① Polystyrene foam: 6.8g; ② Water: 75g; ③ Cement: 130g;

[0030] ④Styrene-acrylic emulsion: 9g; ⑤Fly ash: 100g; ⑥Hydrogen peroxide: 12g.

[0031] Feed into the container in the stirring state in sequence according to the number. After the feeding is completed, continue to stir for 2 minutes, and then pour into a round mold with a diameter of Φ200mm and a height of h=30mm. After 24 hours demoulding (V=942cm 3 Wet bulk density = 346g / cm 3 Dry bulk density = 307g / cm 3 ) No. 2 round test block.

[0032] parameters

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PUM

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Abstract

A composite foaming material is prepared from foamed polystyrene particles, silicate cement, powdered coal ash, affinity agent and foaming agent through proportional mixing. Its in-situ application method includes such steps as foaming the polystyrene particles by portable electrothermal steam foaming machine, stirring cement mortar by stirrer, sequentially mixing with others, stirring, and in-situ pouring.

Description

technical field [0001] The invention relates to a building material, in particular to a polystyrene and Portland cement composite foaming insulation material and a method for producing, pouring and molding it at a building construction site. Background technique [0002] At present, polystyrene foamed material (referred to as benzene board) is widely used in building wall and roof insulation projects due to its high foaming rate, light bulk density, good thermal insulation performance, and water-repellent water resistance; Due to its own defects such as low strength, easy damage, poor fire resistance, and poor affinity with inorganic materials, it has brought many adverse consequences to building insulation projects. Inorganic insulation materials commonly used in engineering, such as: cement perlite, aerated concrete, ceramsite concrete, lightweight magnesium cement and other materials have good strength, but the heat insulation and cooling effect is several times lower tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B1/50C04B16/08C04B18/08C04B28/02
CPCY02W30/91
Inventor 陈星
Owner 沈阳金铠建筑科技股份有限公司
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