Dry-mixed plastering mortar additive and application thereof

A plastering mortar and additive technology, which is applied in the field of building materials, can solve the problems of accelerated mortar, poor durability of mortar, and shrinkage of strength, etc., and achieve the effects of small construction workability loss, strong shrinkage resistance, and good plastering performance

Inactive Publication Date: 2016-07-27
SUZHOU BIZUNION ARCHITECTURAL ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There are many common mortar additives of the same kind, such as mortar king, water reducing agent, water retaining agent, etc., but they all have some weaknesses. The strength of the mortar king is very strong, and the water reducing agent has a large fluidity and is difficult to put on the wall. Low dosage of water-retaining agent and uneven mixing, Mortar King and water-retaining agent all have the common phenomenon of shrinking strength, accelerating carbonation and shrinkage of mortar, and poor durability of mortar

Method used

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  • Dry-mixed plastering mortar additive and application thereof

Examples

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Effect test

Embodiment 1

[0022] An additive for dry-mixed plastering mortar, comprising the following content: 0.01% of hydroxyethyl methylcellulose, 0.01% of magnesium aluminum silicate, 0.5% of mineral microcrystals, 0.5% of bentonite, and 1% of calcium oxide %, CaSO2 content is 1%, and the rest is mixed with water to form mortar additives.

[0023] Take 100kg of cement, 50kg of coal ash, 1000kg of sand, 50kg of mortar additives, and 150kg of water and mix them to obtain building mortar.

Embodiment 2

[0025] An additive for dry-mixed plastering mortar, comprising the following components: 0.03% of hydroxyethyl methylcellulose, 0.03% of magnesium aluminum silicate, 0.9% of mineral microcrystals, 0.7% of bentonite, calcium oxide The content is 1.6%, the CaSO2 content is 1.5%, and the rest is water.

[0026] Take 150kg of cement, 70kg of coal ash, 1650kg of sand, 60kg of mortar additives, and 200kg of water and mix them to obtain building mortar.

Embodiment 3

[0028] An additive for dry-mixed plastering mortar, comprising the following components: 0.05% of hydroxyethyl methylcellulose, 0.05% of magnesium aluminum silicate, 1% of mineral crystallite, 1% of bentonite, calcium oxide The content is 1.5%, the CaSO2 content is 2%, and the rest is water.

[0029] Take 160kg of cement, 70kg of coal ash, 1480kg of sand, 60.5kg of mortar additives, and 290kg of water and mix them to obtain building mortar.

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Abstract

The invention provides a dry-mixed plastering mortar additive and application thereof. The dry-mixed plastering mortar additive is prepared from 0.01%-0.1% of hydroxyethyl methyl cellulose, 0.01%-0.1% of aluminum-magnesium silicate, 0.5%-2% of mineral microcrystals, 0.5%-2% of bentonite, 1%-2% of calcium oxide, 1%-5% of CaSO2 and the balance water. Application of the additive is achieved through the step that 100-200 kg of cement, 50-100 kg of coal ash, 1,000-1,700 kg of sand, 50-80 kg of the mortar additive and 150-350 kg of water are taken and mixed. The additive has the following advantages that the plastering performance is good, the water-retaining performance is high, construction workability losses are few in a high-temperature environment, the anti-carbonization and anti-shrinkage capacities are high, and the mortar strength cannot be reduced; the anti-carbonization capacity is particularly good, the common M5 mortar is carbonized by 3-4 cm after 28 days, and the mortar is carbonized by less than 2 cm after 28 days through the additive.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a dry-mixed plastering mortar additive and an application thereof. Background technique [0002] There are many common mortar additives of the same kind, such as mortar king, water reducing agent, water retaining agent, etc., but they all have some weaknesses. The strength of the mortar king is very strong, and the water reducing agent has a large fluidity and is difficult to put on the wall. Low dosage of water-retaining agent and uneven mixing, Mortar King, and water-retaining agent all have the common phenomenon of shrinking strength, accelerating carbonation and shrinkage of mortar, and poor durability of mortar. Contents of the invention [0003] In order to solve the problems in the prior art, the present invention proposes a dry-mixed plastering mortar additive, comprising the following components: [0004] The content of hydroxyethyl methylcellulose is 0.01%-0.1%, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/38C04B28/00
CPCC04B40/0039C04B28/00C04B24/383C04B14/04C04B14/38C04B14/104C04B22/064C04B22/14C04B18/08C04B14/06C04B2103/0068C04B22/002
Inventor 刘强
Owner SUZHOU BIZUNION ARCHITECTURAL ENG CO LTD
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