| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a dispersing agent capable of imparting moderate viscosity reducing effect, moderate flow property or moderate retention capacity of flow property to a hydraulic composition. <P>SOLUTION: The dispersing agent for hydraulic composition contains a water soluble high molecular compound having a polyoxyethylene chain having average ethylene oxide addition molar number of 3-50 and satisfies following formula (1), m<SB>1500</SB>×N<SP>0.815</SP>>1.49 (1), when the viscosityηof slurry which is measured under a specific condition is 1,500 mPa s. In the formula, m<SB>1500</SB>is the number of pieces (pieces/nm<SP>2</SP>) of the polyoxyethylene chain adsorbed to slag fine powder per unit area in the slurry having 1,500 mpa s viscosity and N is the average ethylene oxide addition molar number in the polyoxyethylene chain of the water soluble high molecular compound and is the number of 3-50. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
