Clay inhibitor for concrete and preparation method thereof

A mud-repelling agent and concrete technology, applied in the field of building materials, can solve problems such as difficulty in obtaining high-quality sand and gravel, and achieve good fluidity

Inactive Publication Date: 2011-12-14
JIANGSU MINGHE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, with the development of the national economy, there are more and more large-scale construction projects, but it is difficult to obtain high-quality sand and gravel.
However, in order to improve the quality of concrete wh

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Add 60 parts of alkenyl amine ether, 10 parts of methyl acrylate, 10 parts of methyl acrylate, 10 parts of vinyl acetate, 0.5 parts of sodium propylene sulfonate, 0.1 part of EA, and 45 parts of deionized water into the reaction container, and control it at 60 degrees Within, heat and stir to present a uniform transparent solution for later use.

[0025] Mix 0.2 parts of DA and 6 parts of deionized water to form a uniform solution, and put it into a constant pressure dropping funnel for later use.

[0026] Prepare a uniform solution by preparing 0.2 parts of ammonium persulfate and 6 parts of deionized water, and put it into a constant pressure dropping funnel for later use.

[0027] Control the reaction temperature between 55-60 degrees, drop the initiator solution and DA solution at the same time, drop it in 3 hours, keep it at 60-65 degrees for 1 hour, cool down to 40 degrees, add alkali to neutralize to a pH value of 6.5- Between 7.5, add water to adjust the mud in...

Embodiment 2

[0029] Add 60 parts of alkenyl amine ether, 10 parts of methyl acrylate, 10 parts of methyl acrylate, 10 parts of vinyl acetate, 0.5 parts of sodium propylene sulfonate, 0.1 part of EA, and 45 parts of deionized water into the reaction container, and control it at 60 degrees Within, heat and stir to present a uniform transparent solution for later use.

[0030] Mix 0.2 parts of DA and 6 parts of deionized water to form a uniform solution, and put it into a constant pressure dropping funnel for later use.

[0031] Prepare a uniform solution by preparing 0.2 parts of potassium persulfate and 6 parts of deionized water, and put it into a constant pressure dropping funnel for later use.

[0032] Control the reaction temperature between 55-60 degrees, drop the initiator solution and DA solution at the same time, drop it in 3 hours, keep it at 60-65 degrees for 1 hour, cool down to 40 degrees, add alkali to neutralize to a pH value of 6.5- Between 7.5, add water to adjust the mud i...

Embodiment 3

[0034] Add 60 parts of alkenyl amine ether, 10 parts of methyl acrylate, 10 parts of methyl acrylate, 10 parts of vinyl acetate, 0.5 parts of sodium propylene sulfonate, 0.1 part of EA, 0.15 parts of potassium sulfate, and 50 parts of deionized water into the reaction container , control it within 60 degrees, heat and stir, and present a uniform and transparent solution for later use.

[0035] Prepare a uniform solution by preparing 0.2 parts of potassium persulfate and 6 parts of deionized water, and put it into a constant pressure dropping funnel for later use.

[0036] Control the reaction temperature between 55-60 degrees, add DA solution dropwise, drop it in 3 hours, keep it at 60-65 degrees for 1 hour, cool down to 40 degrees, add alkali to neutralize to pH value between 6.5-7.5, add water Adjust the mud inhibitor solution with a solid content of 40%.

[0037] The silt inhibitors prepared in Examples 1 to 3 were applied with reference cement, and their mortar water redu...

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PUM

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Abstract

The invention discloses a mud-repelling agent for concrete. The monomer composition and mass percent content of the polymerization mother liquor are: 50-75% of alkenyl amine ether, 5-15% of (meth)acrylic acid ester, and 0.1-1% of DA %, alkenyl sulfonate 0.5-5%, EA 0.1-1%, vinyl ester 5-15%. The mud inhibitor introduces polymerized monomer lipid monomers, so that after the molecule is adsorbed on the surface of the mud particles, it will reduce the water absorption of the mud particles, so that the water demand of the concrete can be at an appropriate value. At the same time, the polymer monomer of the mud-repelling agent is a molecule with a branched chain structure, and the branched chain can effectively reduce the possibility of mud particles approaching each other to coagulate and gel, so that the mud-containing concrete system has good fluidity.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a mud inhibitor for concrete and a preparation method thereof. Background technique [0002] With the advancement of technology and the development of economic construction, concrete water reducer has become an indispensable third component in concrete, but in the construction process, due to the influence of mud content in sand and gravel, the water reducer The adaptability has decreased in different degrees, which brings different degrees of difficulties to the cost control of the project and the convenience of construction. [0003] At present, with the development of the national economy, there are more and more large-scale construction projects, but it is difficult to obtain high-quality sand and gravel. However, in order to improve the quality of concrete when using ordinary sand and gravel, it is necessary to absorb and reduce the viscosity of the mud in the sand and gra...

Claims

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Application Information

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IPC IPC(8): C04B24/26C08F290/06C08F226/02
Inventor 臧军马琳蔡林虎
Owner JIANGSU MINGHE GRP
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