Evaluating the stiffness of chemically stabilized marine clay |
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| Authors: | Huawen Xiao |
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| Institution: | 1. Department of Civil and Environmental Engineering, National University of Singapore, Singaporeceexh@nus.edu.sg |
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| Abstract: | Cement-stabilized clay is widely used in soft clay improvement for deep excavation, underground construction, and land reclamation. This paper presents a study on the evaluation of elastic modulus for cement-stabilized marine clay. First, two types of cement-stabilized soils were studied through isotropic compression tests and cylinder split tensile tests. Specimens with different mix ratios and curing periods were used. Stress–strain behavior under isotropic compression was discussed, followed by an introduction and estimation of the stress-free bulk modulus. Empirical correlations between elastic moduli and functions for estimating elastic moduli were then proposed. Further estimation of elastic modulus was conducted with another data set. The results showed that the proposed function for estimating elastic modulus is effective for cement-improved marine clay. Finally, the proposed method and empirical functions were validated with other types of cement-stabilized clay. |
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| Keywords: | Cement stabilization elastic modulus isotropic compression marine clay stiffness |
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