| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a composition mixture to be solidified in situ, which has excellent moisture absorbing/releasing properties as a structure after it is solidified, has suitable strength, can be broken relatively easily after it is used, does not cause problems of waste products, and has characteristics that it is easily returned to soil. <P>SOLUTION: The underfloor grain composition is a grain mixture obtained by mixing 100 pts.wt. of construction surplus soil mainly composed of dried black soil having a diameter of 0.4-0.6 mmϕ, 5-15 pts.wt. of a silt component of pit sand, 15-30 pts.wt. of portland cement which is an inorganic solidification agent, and 0.1-0.5 pt.wt. of a nonionic surfactant. The grain mixture is laid underfloor followed by direct spaying of water on the surface thereof to form a solidified layer having both moisture absorbing and releasing properties. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
