Biotech admixtures for enhance Portland cement hydration

Abstract

Biopolymers are environmentally friendly polymers that are used as admixtures for modifying hydration. Several polymers used as admixtures are available for the construction material industry. In the present review, cellulose ethers; hydroxypropylmethyl cellulose; hydroxyethylmethyl cellulose; hydroxyethyl cellulose; chitosan, diutan, welan, and xanthan gum; lignosulfonates; starch; and microcellulose are included. The effects of each biopolymer in the cement mixture are explained.