Compression-resistant cement modifier

Abstract

The invention discloses a compression-resistant cement modifier prepared from the following raw materials in parts by weight: 2.5-3.8 parts of chlorinated polyethylene rubber elastomers, 1.5-3.6 parts of polyethylene wax, 2.5-5 parts of zeolite powder, 3-8 parts of dimethyl carbonate, 2.5-5 parts of tribasic lead sulfate, 0.8-2.2 parts of gamma-trimethoxysilylpropanethiol, 1.5-3.6 parts of an aminosilane coupling agent and 3.5-6.8 parts of a bisphenol A epoxy resin aqueous emulsion. Compared with the existing cement modifier, the compression-resistant cement modifier is low in cost and capable of better solving the technical problems such as cement hardening, poor water resistance, small cementing power, no wear resistance and no frost resistance; and a great number of experiments prove that all the performances of Portland cement are greatly improved after the modifier disclosed by the invention is added into the Portland cement.

Description

technical field [0001] The invention relates to a compressive modifier for cement and belongs to the field of building materials. Background technique [0002] The cement currently used in construction is prone to hardening, mainly due to the condensation of hydrogen polyethylene wax, calcium silicate and water. Such cement is prone to cracking, which in turn leads to low tensile strength and low toughness of cement. In order to solve this problem, it is generally necessary to add a modifier to this type of cement to improve the hardening phenomenon of the cement. However, some ordinary cements also have defects such as poor water resistance, low cohesive force, no wear resistance, and no frost resistance while being easy to harden. In order to solve these problems of ordinary cement, it is necessary to add various modifiers, additives, etc., although the performance of the cement has been improved, but the cost of the cement has been greatly increased. Due to the differe...

AI Technical Summary

Problems solved by technology

[0003] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a compression modifier for cement, which is low in cost and relatively Good solution to the technical problems of cement hardening, poor waterproofness, small cohesive force, non-abrasion resistance, non-freezing resistance, etc.