Improved cement crack resistance modifier

Abstract

The invention discloses an improved cement crack resistance modifier. The improved cement crack resistance modifier is prepared from the following raw materials in parts by weight: 1.2-3.2 parts of lead salt stabilizer, 0.8-3.6 parts of oil-tea camellia saponin, 3.5-7 parts of butane tetracarboxylic acid, 4-8 parts of kaolin, 1.5-2.7 parts of silica, 1.2-2.8 parts of glyceryl trioleate, 1.5-3.5 parts of polyvinyl acetate and 2.5-4.2 parts of molybdate red. Compared with the existing cement modifiers, the modifier disclosed by the invention has the advantages that the cost is low, and the technical problems of cement hardening, poor waterproofing property, low bonding power, no wear resistance, no freezing resistance and the like are better solved; verified by a large number of tests, the properties of normal cement are greatly improved after the modifier disclosed by the invention is added into the normal cement.

Description

technical field [0001] The invention relates to an improved cement anti-crack modifier, which 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 calcium hydroxide, 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. Currently there is no effective way to solve these problems. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide an improved cement anti-c...

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 an improved cement crack resistance modifier, which has low cost and better It solves technical problems such as hardening of cement, poor water resistance, small cohesive force, non-wear resistance, and non-freeze resistance.