Gypsum base swelling perlite heat-insulating mortar dry powder and its usage method

A technology of expanded perlite and thermal insulation mortar, which is applied in the field of gypsum-based expanded perlite thermal insulation mortar dry powder, which can solve the problems of complex construction, unsightly appearance, and low fireproof performance, and achieve both economic and social benefits, large development space and application Prospects, the effect of improving thermal insulation performance

Inactive Publication Date: 2006-07-26
NANJING CENGO ENERGY SAVING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the current market, cement-based expanded perlite insulation mortar has a relatively high share due to its advantages of low cost, convenient construction, and high fire resistance. Although polystyrene board has the disadvantages of high cost, complicated construction, and low fire resistance, its The thermal insulation effect has obvious advantages, so it has still been applied to a certain

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Take No. 90 expanded perlite: 0.9m 3 , βCaSO 4 ·1 / 2H 2 O: 145kg, P42.5 ordinary Portland cement: 18kg, Class II fly ash: 45kg, polypropylene fiber: 0.4kg, 80 mesh heavy calcium powder: 1.3kg, methyl cellulose: 1.5kg, model: Retarden P's gypsum retarder 3.0kg and sodium lauryl silicate: 0.008kg, add 280kg of water and fully stir with a mortar mixer for 10 minutes, to prepare gypsum-based expanded perlite thermal insulation mortar, and according to the above St. George The test method for drying shrinkage cracks of mortar and concrete proposed by Professor Paulp kraai of State University was tested, and the cracking index value of the gypsum-based expanded perlite thermal insulation mortar was measured to be 2976mm. 2 .

Embodiment 2

[0023] Take No. 100 expanded perlite: 1.1m 3 , βCaSO 4 ·1 / 2H 2 O: 165kg, P52.5 ordinary Portland cement: 22kg, Class I fly ash: 65kg, polypropylene fiber: 1kg, 100 mesh calcium carbonate powder: 1.7kg, hydroxypropyl methylcellulose: 2.5kg, model It is: gypsum retarder of SC: 5.0kg and sodium lauryl silicate: 0.013kg, add 330kg of water when using and fully stir with a mortar mixer for 10 minutes to obtain gypsum-based expanded perlite thermal insulation mortar, and follow the above-mentioned instructions. ·The test method for drying shrinkage cracks of mortar and concrete proposed by Professor Paulp kraai of George State University was tested, and the cracking index value of the gypsum-based expanded perlite thermal insulation mortar was measured to be 2883mm 2 .

Embodiment 3

[0025] Take No. 110 expanded perlite: 1.0m 3 , βCaSO 4 ·1 / 2H 2 O: 155kg, P42.5 ordinary Portland cement: 20kg, high calcium ash: 50kg, polypropylene fiber: 0.7kg, 80 mesh heavy calcium powder 0.8kg and 100 mesh calcium carbonate powder 0.7kg, methyl cellulose 1.1kg and hydroxypropyl methylcellulose 0.9kg, model: Retarden P gypsum retarder 2.0kg and model: SC gypsum retarder 2.0kg, sodium lauryl silicate: 0.011kg, add water when using 320kg and fully mixed with a mortar mixer for 10 minutes to obtain a gypsum-based expanded perlite thermal insulation mortar, which was tested according to the test method for mortar and concrete drying shrinkage cracks proposed by Professor Paulp kraai of St. George State University. The cracking index value of gypsum-based expanded perlite thermal insulation mortar is 2872mm 2 .

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PUM

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Abstract

The invention relates to a gypsum base swelling perlite heat-insulating mortar dry powder, wherein each unit of the thermal insulating mortar dried powder comprises the following raw material as the components: expanded perlite 0.9-1.1m3, beta CaSO4*1/2H2O 145-165kg, common silicate cement 18-22kg, grade I coal ash and/or grade II coal ash and/or high calcium ash 45-65kg, polypropylene fiber 0.4-1kg, 80-100 mesh heavy calcium powder and/or calcium carbonate powder 1.3-1.7kg, cellulose methyl and/or methylcellulose propylene glycol ether 1.5-2.5kg, gypsum retarder 3.0-5.0kg and sodium dodecyl silicate 0.008-0.013kg.

Description

technical field [0001] The invention relates to a kind of thermal insulation mortar dry powder applied in the field of building energy saving, in particular to a gypsum-based expanded perlite thermal insulation mortar dry powder applied to an external wall internal thermal insulation system, a roof thermal insulation system and a stair thermal insulation system, and provides a kind of thermal insulation mortar dry powder. How to use dry mortar powder. Background technique [0002] At present, the country is vigorously advocating the construction of an energy-saving society, and buildings must take building energy conservation as their development direction. External wall thermal insulation is an important technical means of building energy saving, and has become a hot spot of building energy saving. However, the building energy-saving method of external thermal insulation has its own limitations. Taking into account the requirements of safety performance such as fire prote...

Claims

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Application Information

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IPC IPC(8): C04B28/14C04B14/18C04B18/08C04B16/04
CPCY02W30/91
Inventor 王正权
Owner NANJING CENGO ENERGY SAVING MATERIAL
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