佐賀沖積粘土のセメント系地盤改良における六価クロム検定の結果と考察

概要

論文の詳細を見る
Laboratory Chromium Cr^<6+> leaching tests are obligatory in carrying out ground improvement by cement mixing in soft clayey ground. However, there are few published reports on what kinds of cement and soils cause Chromium leaching in the fields. In this paper, laboratory Chromium leaching tests are conducted on clayey soil specimens from Saga alluvial plain improved by cement mixing. It is found that some kind of Portland cement yields Chromium leaching in quantity greater than the designated critical value. In such cases, the sue of specially prescribed cement is found to effectively reduce Chromium leaching to less than the designated critical value. There is experimental evidence to indicate that the alluvial clays in Saga plain show characteristics of adsorbing Chromium, and therefore reduce the risk of Chromium leaching in this area.
社団法人地盤工学会の論文
2003-04-01