| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide injection liquid for drilling which generates a smaller amount of bleeding water than before even with a smaller amount of bentonite than before, and a composition for injection liquid used for the same. <P>SOLUTION: The composition for injection liquid is used for drilling construction in temporary works performed prior to the main construction in ground foundation construction, and includes sludge fine powders from ready-mixed concrete wastes produced in a ready-mixed concrete plant and a concrete product factory and bentonite. The injection liquid for drilling is obtained by adding 400-650 pts.wt. of water to 100 pts.wt. of the composition for injection liquid. <P>COPYRIGHT: (C)2012,JPO&INPIT |
