セメント吹込みによる砂質土の透水抵抗性改善に関する基礎実験

概要

論文の詳細を見る
Blowing cement particles into voids in sandy soil by air pressure was made to improve the watertightness. The ranges of sand particle size used in this study were 0〜5mm, 2.5〜5mm and 5〜10 mm. The blowing experimented on 0〜5 mm sand was more effective than those done on other sands from viewpoint of watertightness improvement in spite of the fact that the set layer thickness of 0〜5 mm sand was less than those of the others. This method had noticeable effects with increasing air pressure and density of sand. The amount of cement supply and blowing cycles were another important factors to bring the method in success, and it was recognized that the optimum combination of the factors was in existence. The watertightness of sand treated by cement only and cured for 7 days was almost the same as that of the one treated by cement admixed with set accelerating admixture and cured for 1 day.
社団法人日本材料学会の論文
1991-09-15