The invention relates to a novel liquid
cement grinding aid and a preparation method thereof. The novel liquid
cement grinding aid is prepared from the following raw materials by weight ratio: 10-25 parts of
triisopropanolamine, 10-20 parts of
glycerol, 10-20 parts of molasses, 2-8 parts of
propylene glycol, 3-6 parts of diglycol, 3-10 parts of
ethylene glycol and 30-45 parts of water. The novel liquid
cement grinding aid has
low toxicity, stable and sufficient source of raw materials and low cost, is non-volatile and is easy to process and prepare. All the indexes of the novel liquid
cement grinding aid meet the standard requirements of the
cement grinding aid JC / T667-2004. Mixed with the cement, the novel liquid
cement grinding aid can reduce the free energy on the surface of the
powder and change the distribution and the morphology of the particles of the
powder, can not cause bad influence on the quality of the cement and can be generally used. Due to the adoption of the novel liquid cement grinding aid, the efficiency of grinding the cement into
powder by using a grinding
machine can be significantly improved, the early and later-stage strength of the cement can be increased by 2-5MPa, the cement clinker can be saved, and the mixing amount of the cement admixture can be increased by 5%.