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論文投稿 Strength Characteristics of "Crushed Solidified Soil"

作成年度 2005年度
論文名 Strength Characteristics of "Crushed Solidified Soil"
論文名(和訳) 固化破砕土の強度特性
論文副題
発表会 第2回日中地盤シンポジウム
誌名(No./号数)
発表年月日 2005/10/15 ~ 2005/10/16
所属研究室/機関名 著者名(英名)
土質基礎研究室佐藤 厚子(SATOH Atsuko)
土質基礎研究室西本 聡(NISHIMOTO Satoshi)
北見工業大学鈴木 輝之(SUZUKI Teruyuki)
抄録
Soils generated as byproducts of construction are used in other projects. When such soils are to be used for embankments but are unsuitable for such use、 they must be solidified first. When solidifying agents are added、 the gain in strength appears shortly thereafter、 but there are cases where banking cannot be done within the prescribed time after mixing with solidifying agent、 due to sudden changes of work schedule or weather. The solidified soil must then be crushed and compacted before use. The strength characteristics of such soil are unclear.[*]To clarify the strength characteristics of soil that has been mixed with solidifying agents、 cured for a certain period、 crushed and then compacted ("crushed solidified soil")、 we conducted several laboratory tests in which the time elapsed between the addition of solidifying agent to soil and crushing was varied. The test results showed that the strength of crushed solidified soil could be estimated from the strength of solidified soil. Also、 the tests showed that the cone index of crushed solidified soil is greatly affected by the time elapsed between the addition of solidifying agents and crushing. However、 unconfined compressive strength、 cohesion and California Bearing Ratio (CBR) of crushed solidified soil did not greatly change from one day of elapsed time onward.
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