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A kind of stabilizer for environment-friendly ca mortar and preparation method thereof

A stabilizer and environment-friendly technology, which is applied in the field of stabilizer for environment-friendly CA mortar, can solve the problems affecting the strength and other properties of the CA mortar layer, poor stability, poor compatibility, etc., to improve the anti-shrinkage performance and stability Good, the effect of maintaining compactness

Active Publication Date: 2018-06-26
宁波森泰新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the poor compatibility between the various components in the existing CA mortar, the stability of the system is poor, and it is easy to delaminate, which affects the strength and other properties of the hardened CA mortar layer.

Method used

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  • A kind of stabilizer for environment-friendly ca mortar and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A stabilizer for environment-friendly CA mortar, in parts by weight, comprises the following components:

[0042] 3 parts of water-soluble polymer monomer,

[0043] 20 parts of polymer latex,

[0044] 2 parts cationic emulsifier,

[0045] 0.8 part of cellulose ether,

[0046] 1 part metakaolin,

[0047] 1 part dextrin,

[0048] 0.5 part of dispersant,

[0049] 50 parts of deionized water.

[0050] Its preparation method comprises the following steps:

[0051] (1) Mix the water-soluble polymer monomer, polymer latex, cationic emulsifier and deionized water into a high-speed mixer, and stir for 1 hour at 5000 rpm to obtain a mixed emulsion;

[0052] (2) Add cellulose ether, metakaolin, dextrin and dispersant to the mixed emulsion obtained in step (1), mix and stir evenly, and ultrasonicate for 2 hours at a power of 500W to obtain a stabilizer for environment-friendly CA mortar.

Embodiment 2

[0054] A stabilizer for environment-friendly CA mortar, in parts by weight, comprises the following components:

[0055] 5 parts of water-soluble polymer monomer,

[0056] 50 parts of polymer latex,

[0057] 4 parts cationic emulsifier,

[0058] 1.2 parts of cellulose ether,

[0059] Metakaolin 1.5 parts,

[0060] 2 parts of dextrin,

[0061] 0.8 part of dispersant,

[0062] 60 parts of deionized water.

[0063] Its preparation method comprises the following steps:

[0064] (1) Mix the water-soluble polymer monomer, polymer latex, cationic emulsifier and deionized water into a high-speed mixer, and stir for 2 hours at 8000 rpm to obtain a mixed emulsion;

[0065] (2) Add cellulose ether, metakaolin, dextrin and dispersant to the mixed emulsion obtained in step (1), mix and stir evenly, and ultrasonicate for 5 hours at a power of 1000W to obtain an environment-friendly stabilizer for CA mortar.

Embodiment 3

[0067] A stabilizer for environment-friendly CA mortar, in parts by weight, comprises the following components:

[0068] 3.5 parts of water-soluble polymer monomers,

[0069] 30 parts of polymer latex,

[0070] 3 parts cationic emulsifier,

[0071] 1 part cellulose ether,

[0072] Metakaolin 1.2 parts,

[0073] 1 part dextrin,

[0074] 0.65 parts of dispersant,

[0075] 50 parts of deionized water.

[0076] Its preparation method comprises the following steps:

[0077] (1) Mix the water-soluble polymer monomer, polymer latex, cationic emulsifier and deionized water into a high-speed mixer, and stir for 1.2 hours at 6000 rpm to obtain a mixed emulsion;

[0078] (2) Add cellulose ether, metakaolin, dextrin and dispersant to the mixed emulsion obtained in step (1), mix and stir evenly, and ultrasonicate for 3 hours at a power of 600W to obtain a stabilizer for environment-friendly CA mortar.

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Abstract

The invention discloses an environment-friendly stabilizer for CA mortar, which comprises the following components, by weight, 3-5 parts of a water-soluble polymer monomer, 20-50 parts of polymer latex, 2-4 parts of a cationic emulsifier, 0.8-1.2 parts of cellulose ether, 1-1.5 parts of metakaolin, 1-2 parts of dextrin, 0.5-0.8 parts of a dispersing agent, and 50-60 parts of deionized water. The invention also discloses a preparation method of the stabilizer of the CA mortar. The stabilizer can improve compatibility of components in the CA mortar and effectively reduce separation degree of CA mortar, thereby greatly improving the stability and mechanical performance of the CA mortar. The stabilizer is toxic-free and environment-friendly and is simple in preparation method.

Description

Technical field: [0001] The invention relates to the field of road materials, in particular to an environment-friendly stabilizer for CA mortar. Background technique: [0002] CA mortar, that is, cement-asphalt mortar, is composed of emulsified asphalt, cement, aggregate and water, etc. It is a semi-rigid cementitious material between cement-based and asphalt-based materials. As a buffer filling material, it has certain elasticity and strength. Cement mortar has high strength but insufficient elasticity, while asphalt has good elasticity but insufficient strength and is greatly affected by temperature. After the mortar is solidified, it can not only provide the necessary strength required by the ballastless track structure, but also provide a certain degree of elasticity for the structure, which plays an important role in the ballastless track structure. Because of its good working performance, it has gradually become a ballastless track structure. The best choice for ball...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/38C04B14/04C04B24/04C04B24/12C04B24/16C04B24/26
CPCC04B40/0039C04B24/2652C04B24/26C04B24/12C04B24/04C04B14/041C04B24/16C04B24/121C04B24/383
Inventor 严连庆
Owner 宁波森泰新材料有限公司
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