低掺量水泥固化高含水率黏土强度特性研究

Experimental study on strength behavior of high water content clay stabilized by low amount of cement

为了研究低掺量水泥固化高含水率海泥(HW-LC-clay)的强度特性,通过室内试验测试了不同含水率和不同水泥剂量条件下HW-LC-clay的无侧限抗压强度,然后采用归一化分析方法,分别揭示了含水率和水泥剂量对HW-LC-clay强度指标的影响规律.研究结果表明:含水率和水泥剂量对HW-LC-clay强度的影响是相互独立的.在此基础上,建立了HW-LC-clay强度预测经验公式,并采用文献数据验证了该经验公式的合理性.

To better understand the strength behavior of high water content clay stabilized by low amount of cement clay（referred to as HW-LC-clay from here on）,several sets of laboratory tests were conducted in this study to acquire the unconfined compressive strengths（qu）of different HWLC-clay samples with different mixing proportions.Then by using the normalization approach,the effects of water content（W）and cement dosage（Cc）on the strength development of HW-LC-clay were investigated.Results indicate that W and Ccare two independent parameters governing the qubehavior of HW-LC-clay.Finally,according to the quantitive relations of qu-W and qu-Cc,a more practical empirical formula was developed,as a function of W and Cc,to estimate the qu.It has been validated that this formula is applicable to both the new dataset and the literature datasets.