Dry-mixed thermal-insulation board finishing mortar and preparation method thereof

A technology for plastering mortar and thermal insulation board, applied in the field of building materials, can solve the problems of low water retention rate and cohesion of mortar, easy shelling and cracking of mortar, low crack resistance, etc., and achieves low water absorption, excellent adhesion, and improved Effects of compressive strength and weatherability

Inactive Publication Date: 2017-05-31
安庆市凯瑞建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, dry-mix plastering mortar mainly includes cement, sand, other mineral materials and additives. The resulting mortar has low water retention and cohesiveness, and low crack resistance. A large strain causes the mortar to crack easily and is not environmentally friendly

Method used

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  • Dry-mixed thermal-insulation board finishing mortar and preparation method thereof

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Effect test

Embodiment 1

[0016] A dry-mixed insulation board plastering mortar, made from the following raw materials in parts by weight: 80 parts of Portland cement, 20 parts of yellow sand, 5 parts of modified nano-bamboo charcoal powder, 8 parts of talcum powder, 3 parts of desulfurized gypsum, and 5 parts of limestone , 2 parts of cellulose ether, 6 parts of tree ash, 5 parts of wood fiber, 5 parts of Nai superplasticizer salt, 6 parts of vinyl acetate and ethylene copolymer powder, and 3 parts of fumed silica.

[0017] The modified nano-bamboo charcoal powder is prepared by the following method: soak the bamboo charcoal powder with 12% sodium hydroxide solution for 3 hours, then wash with deionized water, dry, and then add sodium laurate alkylate equivalent to 2% of its weight , 3% ethyl cyanoacrylate and 1% cross-linking agent TAC, stirred at 3500 rpm for 30 minutes, dried, and ground into nano powder.

[0018] The preparation method of the dry-mixed insulation board plastering mortar comprises ...

Embodiment 2

[0024] A dry-mixed insulation board plastering mortar, made of the following raw materials in parts by weight: 100 parts of Portland cement, 10 parts of yellow sand, 8 parts of modified nano-bamboo charcoal powder, 10 parts of talcum powder, 5 parts of desulfurized gypsum, and 3 parts of limestone , 5 parts of cellulose ether, 10 parts of tree ash, 6 parts of wood fiber, 6 parts of Nai superplasticizer salt, 6 parts of vinyl acetate and ethylene copolymer rubber powder, and 4 parts of fumed silica.

[0025] The modified nano-bamboo charcoal powder is prepared by the following method: soak the bamboo charcoal powder with 12% sodium hydroxide solution for 3 hours, then wash with deionized water, dry, and then add sodium laurate alkylate equivalent to 2% of its weight , 3% ethyl cyanoacrylate and 1% cross-linking agent TAC, stirred at 3500 rpm for 30 minutes, dried, and ground into nano powder.

[0026] The preparation method of the dry-mixed insulation board plastering mortar co...

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Abstract

The invention discloses a dry-mixed thermal-insulation board finishing mortar which is prepared from the following raw materials in parts by weight: 80-100 parts of Portland cement, 10-20 parts of yellow sand, 5-8 parts of modified nano bamboo charcoal powder, 5-10 parts of talcum powder, 3-5 parts of desulfurized gypsum, 3-5 parts of limestone, 1-5 parts of cellulose ether, 5-15 parts of tree ash, 3-6 parts of wood fiber, 1-6 parts of naphthalene high efficiency water reducing agent salt, 6-10 parts of vinyl acetate-ethylene copolymer rubber powder and 2-4 parts of fumed silica. The dry-mixed thermal-insulation board finishing mortar has the advantages of favorable anti-crack durability, low fold ratio, low water absorptivity, small shrinkage, excellent bonding property with the thermal-insulation board, and high combination firmness with the interface; the formed finishing layer has the advantages of acid resistance, aging resistance, collision resistance, rain permeation resistance, crack resistance and the like; and the product has low density and low cost.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a dry-mixed insulation board plastering mortar and a preparation method thereof. Background technique [0002] Among the constituent materials of the thermal insulation system, plastering mortar is the key material to ensure its long-term use effect, so its proportion design and performance have been more researched. Especially with the development of dry-mixed mortar in our country, plastering mortar, as a main dry-mixed mortar variety, has received more attention. Due to its importance in the wall insulation system, dry-mixed plastering mortar has high performance requirements and its material composition is relatively diverse. At present, dry-mix plastering mortar mainly includes cement, sand, other mineral materials and additives. The resulting mortar has low water retention and cohesiveness, and low crack resistance. A large strain causes the mortar to crack eas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B20/02
CPCC04B28/142C04B20/023C04B7/02C04B14/06C04B14/022C04B14/042C04B14/28C04B24/383C04B18/101C04B18/26C04B2103/302C04B24/26
Inventor 储茂德
Owner 安庆市凯瑞建材有限公司
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