| 摘要 |
<p>PROBLEM TO BE SOLVED: To reutilize a polystyrene-contg. material, especially its scrap as a polystyrene-contg. lumpy filling material having high adhesion to a hydrophilic material such as concrete. SOLUTION: This lumpy filling material has a structure formed by coating the surface of a polystyrene-contg. lumpy body with chips of an org. porous body, preferably a polystyrene-contg. porous body or chips of an inorg. substance such as rock or hardened mortar. In the case of inorg. substance, a styrene- contg. polymer having polar groups is preferably allowed to exist on at least a part of the interface between the polystyrene-contg. lumpy body and chips of the inorg. substance.</p> |
