| 摘要 |
PROBLEM TO BE SOLVED: To easily produce a dispersed liquid capable of easily being dispersed in concrete by dispersing a separation inhibitor derived from microorganisms in a liquid comprising water, alcohol and a thickener. SOLUTION: In this production, as the separation inhibitor derived from microorganisms, a neutralβ-1,3-glucan which is a polysaccharide polymer produced by microorganisms and more specifically, consists desirably of a polysaccharide polymer having an average molecular weight 70,000 and also, such a structure that 400 to 500 glucose molecules are linearly bonded together, or dry biomass of microorganisms, is preferably used. This separation inhibitor is dispersed in a liquid comprising water, alcohol that is preferably a 1-4C saturated aliphatic alcohol, and a thickening agent, and further, if necessary, a nonionic surfactant additionally blended. As the thickening agent, a water-soluble organic thickener such as xanthan gum, welan gum, polyethylene oxide, hydroxypropylcellulose or poly(sodium acrylate) copolymer, or an inorganic thickener such as bentonite, surface-treated calcium carbonate or sepiolite is used. |
