Clay inhibitor for concrete and preparation method thereof

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...