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On-site casting polyphenyl-magnesia cement composite foamed material and construction method

A technology of composite foaming and polystyrene foaming, which is applied in the field of polyphenylene magnesium cement composite foaming insulation materials and in the field of production pouring and molding at the construction site, which can solve the problems of low heat insulation and cooling effect, poor water resistance, high water absorption, etc. problems, to achieve the effect of reducing project cost, reducing project cost and improving comprehensive benefits

Inactive Publication Date: 2004-04-28
陈星
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the heat and cool insulation effect is several times to dozens of times lower than that of organic foam materials (benzene boards).
And high water absorption and poor water resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Expandable polystyrene (φ=1mm) is made into benzene foam particles with an average particle diameter of 4mm (up to 60 times) by steam foaming.

[0023] Recipe: ①Water: 42ml ②Phosphoric acid: 1.8g ③Sodium phosphate: 0.8g

[0024] ④Acrylic acid: 4ml ⑤Polyvinyl acid solution: 8ml

[0025] ⑥Magnesium chloride: 40g ⑦Fly ash: 50g

[0026] ⑧Magnesium Oxide: 80g ⑨Benzene Bubbles: 290cm 3

[0027] In the order of numbering, feed in the container under the stirring state one by one. After the feeding is finished, continue to stir for 2 minutes, then cast a 7cm×7cm×7cm mold to form, and after 24 hours, the mold will be obtained (volume 7×7×7=343cm 3 Bulk density=0.572g / cm 3 ) No. 1 square test block.

Embodiment 2

[0029] Expandable polystyrene (φ=0.8mm) is made into benzene foam particles with an average particle diameter of φ3.3mm (60 times the expansion volume) by steam foaming.

[0030] Formula: ①Water: 100ml ②Phosphoric acid: 2.6g ③Sodium phosphate: 1.3

[0031] ④ Rosin resin liquid: 3ml ⑤ Sodium methyl silicate: 2ml

[0032] ⑥Halogen magnesium: 80g ⑦Fly ash: 120g

[0033] ⑧Magnesium Oxide (Light Burnt Magnesium): 160g ⑨Benzene Bubbles: 830cm 3

[0034] Feed into the container in the stirring state according to the order of numbers. 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, the volume V = 942 (cm) after demoulding 3 , Density ρ=0.4832g / cm 3 No. 2 round test block.

[0035] parameters

Example 1

Example 2

Bulk density (kg / m 3 )

0.572

0.483

Compressive strength (Mpa)

2.5

1.8

...

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Abstract

The present invention belongs to the field of building technology. The composite foamed material consists of organic foamed polystyrene material and inorganic foamed magnesia cement material, which are produced in a movable electrothermal steam forming machine, mixed and on-site deposited. The composite foamed material consists of foamed polystyrene in the granularity of 2-8 mm, water, water resisting agent, foaming agent, affinity agent, magnesium chloride, magnesia and flyash. The construction process includes preparing foamed polystyrene grain, mechanical mixing, on-site deposition and other technological steps. The present invention provides one kind of building material with high strength and high heat insulating performance, and the on-site deposition can raise construction quality and lower engineering cost.

Description

Technical field [0001] The invention belongs to the technical field of construction, and in particular relates to a polyphenylene magnesium cement composite foaming thermal insulation material and a method for producing, pouring and forming it at a construction site. Background technique [0002] At present, polystyrene foam material (referred to as benzene board) is widely used in the thermal insulation treatment project of the wall and roof of the building because of its excellent thermal insulation performance. At the same time, due to its own defects such as low strength, poor fire resistance, and poor affinity with inorganic materials, it has brought many adverse consequences to building insulation projects. [0003] On the one hand, the polystyrene foam material has a very high foaming rate, very light bulk density, very good thermal insulation performance, water repellency and water resistance; on the other hand, the strength is extremely poor, the fire resistance is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B16/08C04B18/08C04B22/16C04B28/32C04B38/00C04B38/02E04B2/84E04D7/00
CPCY02W30/91
Inventor 陈星
Owner 陈星
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