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Experimental Study on Mechanical Behavior of Remolded Cement Soil

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Soil Mechanics and Foundation Engineering Aims and scope

As a common soil-improvement method, cement-stabilized soil is widely utilized in ground treatment and resource utilization of in-situ muds. The unconfined compressive strength (UCS) and strength recovery of a remolded cement soil were studied. The test results show that the UCS values of remolded cement soil are significantly lower than those of the corresponding undamaged cement-stabilized soil. The strength loss of remolded cement soil is influenced by cement content and curing age; difference in remolding time has little effect for the same total curing age. On the basis of the test results, a formula to predict UCS for remolded cement soil is proposed. The microscopic mechanism of the strength change of remolded cement soil was analyzed by scanning electron microscopy. The particle spacing of remolded cement soil was closer than that of cement-stabilized soil, but the adhesiveness of hydration products was reduced, which weakened its structure.

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Authors and Affiliations

  1. Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing, China

    Geng Chen & Long Chen

  2. Research Institute of Geotechnical Engineering, Hohai University, Nanjing, China

    Minguo Lin, Xiaotong Qian & Panpan Tang

Authors
  1. Geng Chen
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  2. Minguo Lin
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  3. Long Chen
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  4. Xiaotong Qian
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Correspondence to Minguo Lin.

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Translated from Osnovaniya, Fundamenty i Mekhanika Gruntov, No. 6, November-December, 2023.

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Chen, G., Lin, M., Chen, L. et al. Experimental Study on Mechanical Behavior of Remolded Cement Soil. Soil Mech Found Eng 60, 548–555 (2024). https://doi.org/10.1007/s11204-024-09928-0

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