| 摘要 |
PROBLEM TO BE SOLVED: To provide a grouting chemical liquid composition for a gap filler, giving a little environmental load in its filling work, enabling its foamed product to reduce the extent of contamination, excellent in workability and good in storage stability, in a grouting chemical composition for a gap filler which is applied to fill gaps between concrete structures such as a tunnel, an underground structure, a fundamental structure for a high-rise building, etc., and their surround base rocks or grounds, and is applied to fill a gap generated inside of a base rock or the ground. SOLUTION: In the grouting chemical liquid composition to fill a gap, consisting of an active hydrogen group-containing compound (A) and an organic polyisocyanate (B), this grouting chemical liquid composition is characterized by specifying the (B) as a polymeric MDI containing 20-70 mass% of a dinuclear compound and the dinuclear compound contains total 5-60 mass% of a 2,2'-MDI and 2,4'-MDI, and a method of filling a gap using the same solves conventional problems. |
