Environment-friendly, high-efficient and composite liquid cement grinding aid and preparation method thereof

Abstract

The invention relates to an environment-friendly, high-efficient and composite liquid cement grinding aid and a preparation method thereof. The grinding aid is prepared from following materials: 1-20 parts of triethanolamine, 1-20 parts of triisopropanolamine, 10-20 parts of glycerol, 10-20 parts of molasses, 2-8 parts of propylene glycol, 3-6 parts of sodium tripolyphosphate, 3-8 parts of sodiumhexametaphosphate and 30-50 parts of water. The grinding aid of the invention has low toxicity, does not volatilize and has stable source, sufficient supply, simple processing and preparation and lowcost; the indexes meet standard requirement of JC / T667-2004 Cement Grinding Aid; after the cement is doped, the distribution and shape of the separated particles can be improved and no bad influence for cement quality exists; the yield and quality of the cement are good. The performance is stable, the price is low and the performance cost ratio is high. The adaptability is wide, the doping quantity is low, the grinding effect is improved, the free calcium oxide in the cement is reduced, and the early strength and long-term strength of the cement are improved.

Description

technical field

[0001] The invention belongs to the technical field of cement process admixtures, and in particular relates to an environment-friendly and high-efficiency composite liquid cement grinding aid and a preparation method thereof. Background technique

[0002] In order to solve the problems of high grinding power consumption, low grinding efficiency, improve cement strength and other physical properties, increase the amount of mixed materials, and reduce costs in the cement production process, cement manufacturers generally adopt the method of adding cement grinding aids. Nowadays, most of the cement liquid grinding aids sold on the market are compounded with pure chemical components such as triethanolamine or industrial waste. Although they all meet the standard of "Cement Grinding Aids", due to the different components, the effect is quite different. The performance of the existing cement liquid grinding aids is relatively single. The main purpose is to incre...