Gypsum-based thermal insulation mortar used for pouring

A thermal insulation mortar and gypsum-based technology, which is applied in the comprehensive utilization of solid waste and building materials, can solve the problems of long construction period, long setting time, and heavy volume, and achieve the effect of short maintenance period, fast setting and hardening, and light bulk density

Inactive Publication Date: 2016-02-24
潍坊德霖建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing cement-based thermal insulation mortar is prone to problems such as hollowing, cracking, and falling off after the wall

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Insulation mortar, which is composed of: 100 parts by weight of phosphorus building plaster, 15 parts by weight of cement, 30 parts by weight of mineral powder, 3 parts by weight of quicklime, 1 part by weight of polyphenylene particles, 0.07 parts by weight of citric acid, sodium dodecylsulfonate 0.002 parts by weight, 0.45 parts by weight of water reducing agent, 0.3 parts by weight of cellulose ether, 1.3 parts by weight of rubber powder, 0.02 parts by weight of starch ether, and 149 parts by weight of water.

[0021] Weigh and mix the above raw materials (except light aggregate) according to the proportion, then add light aggregate and mix evenly to prepare thermal insulation mortar.

[0022] The fluidity of the prepared thermal insulation mortar is 240mm, the bulk density is 450Kg / m3, and the compressive strength is 1.5MPa.

Embodiment 2

[0024] The thermal insulation mortar is composed of: 100 parts by weight of phosphorus building plaster, 30 parts by weight of cement, 15 parts by weight of mineral powder, 1 part by weight of polyphenylene particles, 0.07 parts by weight of citric acid, and 0.002 parts by weight of sodium dodecylsulfonate. 0.45 parts by weight of water agent, 0.3 parts by weight of cellulose ether, 1.45 parts by weight of rubber powder, 0.02 parts by weight of starch ether, and 149 parts by weight of water.

[0025] Weigh and mix the above raw materials (except light aggregate) according to the proportion, then add light aggregate and mix evenly to prepare thermal insulation mortar.

[0026] The fluidity of the prepared thermal insulation mortar is 235mm, the bulk density is 458Kg / m3, and the compressive strength is 1.9MPa.

Embodiment 3

[0028] Insulation mortar, which is composed of: 100 parts by weight of desulfurized gypsum hemihydrate, 15 parts by weight of cement, 30 parts by weight of mineral powder, 5 parts by weight of ash calcium, 1 part by weight of polyphenylene particles, 0.2 parts by weight of citric acid, dodecyl sulfonate 0.002 parts by weight of sodium bicarbonate, 0.45 parts by weight of water reducing agent, 0.15 parts by weight of cellulose ether, 2 parts by weight of rubber powder, 0.01 parts by weight of starch ether, and 116 parts by weight of water.

[0029] Weigh and mix the above raw materials (except light aggregate) according to the proportion, then add light aggregate and mix evenly to prepare thermal insulation mortar.

[0030] The fluidity of the prepared thermal insulation mortar is 250mm, the bulk density is 488Kg / m3, and the compressive strength is 2.4MPa.

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Abstract

The present invention belongs to the technical field of building materials, and concretely relates to a gypsum-based thermal insulation mortar used for pouring. The gypsum-based thermal insulation mortar is prepared from: by weight, 100 parts of gypsum, 5-30 parts of cement, 0-30 parts of fly ash, 15-30 parts of mineral powder, 0-5 parts of exciting agent, 0.5-50 parts of light aggregate, 0.5-5 parts of retarder, 0.002-0.5 part of air-entraining admixture, 0.2-0.6 part of water reducing agent, 0.3-0.9 part of cellulose ether, 0-6 parts of gelatin powder, 0-0.5 part of starch ether, and 96-180 parts of water. The gypsum-based thermal insulation mortar has good fluidity and short setting time, is used for pouring, and is convenient for construction. The gypsum-based thermal insulation mortar can recycle the building gypsum prepared from various industrial by-product gypsums, and the building gypsum can be used for building thermal insulation engineering. The gypsum-based thermal insulation mortar has simple production technology, low energy consumption, mechanized construction, low heat conductivity coefficient, good fire resistance and low cost.

Description

technical field [0001] The invention relates to a gypsum-based thermal insulation mortar for pouring, and belongs to the technical fields of solid waste comprehensive utilization and building materials. Background technique [0002] With the development of the chemical industry, the industrial waste residue with calcium sulfate as the main component produced in the production process of some chemical industries is the industrial by-product gypsum. About 5 tons of phosphogypsum are discharged for every ton of phosphoric acid produced in my country, and with the continuous expansion of the production scale of phosphorus chemical industry, more and more phosphogypsum is dumped. With the increase of sulfur dioxide emission reduction target requirements, the annual output of desulfurized gypsum is gradually increasing. By 2015, my country's desulfurized gypsum output will reach 80 million tons. For this reason, how to make full use of industrial by-product gypsum has become a ta...

Claims

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Application Information

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IPC IPC(8): C04B28/14C04B111/28C04B111/70
CPCC04B28/147C04B2111/28C04B2111/70C04B7/00C04B18/08C04B18/141C04B20/002C04B2103/0068C04B2103/22C04B2103/304C04B2103/302C04B24/383C04B2103/0045C04B24/38C04B14/24C04B14/185C04B16/082C04B22/064C04B24/06C04B22/08C04B24/20C04B24/24C04B24/2641C04B24/2623
Inventor 陈雪梅刘元正钟华李涛王海军
Owner 潍坊德霖建材科技有限公司
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