Modified cement antifreeze modifier

Abstract

The invention discloses a modified cement antifreeze modifier. The modified cement antifreeze modifier is prepared by using the following raw materials, by weight, 1.5-3.5 parts of asbestos, 2.5-3.8 parts of nonylphenol ether methyl phosphate ethanolamine salt, 2.5-5 parts of furan resin, 0.5-1.2 parts of 2-ethylformic acid, 1.5-2.2 parts of stearic acid, 1.8-3.3 parts of phenylacetic acid, 1.2-1.8 parts of tributyl phenol polyoxyethylene ether and 3.5-5.2 parts of N-methylfatty amido taurate. Compared with present cement modifiers, the modified cement antifreeze modifier has the advantages of low cost, solving of the technical problems of poor hardening and water resistance, small adhesion stress, low wear resistance and poor antifreeze property, and great improvement of the above performances of common cement after verification of massive tests.

Description

technical field [0001] The invention relates to an improved cement antifreeze 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. 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...

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Problems solved by technology

[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 antifreeze modifier, which has low cost and better It solves the problems of cement hardening, poor waterproofness, small cohesive force, non-abrasion resistance, and non-freezing resistance.