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発表 Effects of curing temperatures on the strength of cement-treated peat

作成年度 2009年度
論文名 Effects of curing temperatures on the strength of cement-treated peat
論文名(和訳) セメント改良した泥炭の強度へ養生温度が与える影響
論文副題
発表会 International Symposium on Deep Mixing and Admixture Stabilization(深層混合処理工法などの安定固化処理工法に関する国際シンポジウム)
誌名(No./号数)
発表年月日 2009/05/19 ~ 2009/05/21
所属研究室/機関名 著者名(英名)
帯広開発建設部城戸 優一郎(KIDO Yuichiro)
寒地地盤チーム西本 聡(NISHIMOTO Satoshi)
寒地地盤チーム林 宏親(HAYASHI Hirochika)
寒地地盤チーム橋本 聖(HASHIMOTO Hijiri)
抄録
Trencher mixing is a soil improvement method involving cement、 and uses a backhoe as its base machine. The low weight of backhoes removes the need for a sand mat to ensure trafficability、 but the lack of such a mat causes temperatures at the surface of cement-treated ground to become lower than the external temperature、 thus affecting the solidification of the cement. As this is a problem for construction in winter、 the influences of the curing temperature and the strength of cement-treated soil were studied in a laboratory test. Peat was used as the cement-treated material for its characteristics as a soft soil found widely in cold regions. The results indicated that the strength of cement-treated soil decreased with reduced temperatures. The decrease was especially remarkable at sub-zero temperatures.
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