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Mortar anti-cracking waterproof powder additive and preparation method thereof

An additive and water powder technology, which is applied in the field of mortar anti-cracking and waterproof powder additives and its preparation field, can solve the problems of unsatisfactory anti-cracking effect, unstable performance, low anti-cracking life, etc., and achieve perfect stability, improve water retention, Improve crack resistance

Inactive Publication Date: 2020-06-12
江苏携砼新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Mortar is mainly used as an adhesive material for bricklaying or plastering on buildings. It is very common on construction sites. At present, the mortar on the market mainly uses natural sand and cement as the main components, and some organic glue powder and other bonding materials are added. To achieve a certain anti-cracking effect, this kind of mortar has poor water retention, unsatisfactory anti-cracking effect, low cracking life, unstable performance, and poor adaptability. It is proposed that there is an urgent need to develop and excavate some more effective additives to improve the comprehensive performance of mortar in the market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] First in parts by mass: 30 parts of attapulgite powder, 60 parts of microcrystalline cellulose, 2 parts of sodium pyrophosphate, and 8 parts of low-temperature curing accelerator are sent to a low-speed pre-mixing drum for pre-mixing, and then sent to a temperature-rising constant-pressure frequency conversion mixer Mix to make powder, wherein the particle size of attapulgite powder is 600 orders, the particle size of microcrystalline cellulose is 400 orders, the particle size of sodium pyrophosphate is 50 orders, and the particle size of low-temperature curing accelerator is 600 orders;

[0011] Then the above-mentioned powder is divided into N parts, evenly distributed into individual packaging bags, and sealed to make finished products.

Embodiment 2

[0013] First in parts by mass: 32 parts of attapulgite powder, 63 parts of microcrystalline cellulose, 2.4 parts of sodium pyrophosphate, and 9 parts of low-temperature curing accelerator are sent to a low-speed pre-mixing drum for pre-mixing, and then sent to a temperature-rising constant-pressure frequency conversion mixer Mix to make powder, wherein the particle size of attapulgite powder is 600 orders, the particle size of microcrystalline cellulose is 400 orders, the particle size of sodium pyrophosphate is 50 orders, and the particle size of low-temperature curing accelerator is 600 orders;

[0014] Then the above-mentioned powder is divided into N parts, evenly distributed into individual packaging bags, and sealed to make finished products.

Embodiment 3

[0016] First in parts by mass: 34 parts of attapulgite powder, 65 parts of microcrystalline cellulose, 2.8 parts of sodium pyrophosphate, and 9.5 parts of low-temperature curing accelerator are sent to a low-speed pre-mixing drum for pre-mixing, and then sent to a temperature-rising constant-pressure frequency conversion mixer Mix to make powder, wherein the particle size of attapulgite powder is 600 mesh, the particle size of microcrystalline cellulose is 400 mesh, the particle size of sodium pyrophosphate is 50 mesh, and the particle size of low-temperature curing accelerator is 600 mesh; The powder is divided into N parts, evenly distributed into a single packaging bag, and sealed to make a finished product.

[0017] In order to test the performance of a kind of anti-cracking and waterproof powder agent additive for mortar of Examples 1-3 and its preparation method, the additive weight of each embodiment is according to adding 1kg finished additive in every square meter of m...

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Abstract

The invention relates to a mortar anti-cracking waterproof powder additive and a preparation method thereof. The additive comprises the following components in parts by mass: 30-55 parts of attapulgite powder; 60 to 75 parts of microcrystalline cellulose; 2-5 parts of sodium pyrophosphate; and 8-15 parts of a low-temperature curing accelerant, wherein the particle size of the attapulgite powder is600 to 800 meshes; the particle size of the microcrystalline cellulose is 400-600 meshes; the granularity of the sodium pyrophosphate is 50-100 meshes; and the granularity of the low-temperature curing accelerator is 600-800 meshes. The water retention capacity of the mortar can be greatly improved; moreover, the anti-aging performance is high, the anti-cracking service life is long, and the mortar can be widely applied to the market.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to an anti-crack and waterproof powder additive for mortar and a preparation method thereof. Background technique [0002] Mortar is mainly used as an adhesive material for bricklaying or plastering on buildings. It is very common on construction sites. At present, the mortar on the market mainly uses natural sand and cement as the main components, and some organic glue powder and other bonding materials are added. To achieve a certain anti-cracking effect, this kind of mortar has poor water retention, unsatisfactory anti-cracking effect, low cracking life, unstable performance, and poor adaptability. It is pointed out that there is an urgent need to develop some more effective additives to improve the comprehensive performance of mortar in the market. Contents of the invention [0003] The present invention aims to solve the above-mentioned defects, and pr...

Claims

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Application Information

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IPC IPC(8): C04B24/38C04B111/34C04B111/27
CPCC04B40/0042C04B2111/27C04B2111/343C04B14/102C04B24/383C04B22/16C04B2103/0068
Inventor 丁卫芳张琰
Owner 江苏携砼新材料科技有限公司
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