| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To obtain an admixing agent for a grout material which is used in prestressed concrete by a post tension method, and a grout material. <P>SOLUTION: In the grout material, a starch type admixing agent for a grout material is used to increase only the yield value without increasing the plastic viscosity of the grout material (Curves 10, and 11). Compared with Curve 12 of the case using a cellulose type tackifier, this grout material is better in pumpability and processability, and capable of controlling a flow ahead phenomenon and good in filling property. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
