In recent years, fly-ash based geopolymers have been an alternate binder to ordinary Portland cement commonly used for soil stabilization, as they were found to enhance soil strength and stiffness with the benefits of entailing lower toxic pollution and energy usage. However, most available studies on geopolymer-stabilised soils have focussed on the mechanical performance of treated soils under static loading rather than cyclic/dynamic loading, which requires further research. This paper investigates the cyclic/dynamic loading behaviour of geopolymer-treated kaolin clay using triaxial tests performed under stress-controlled conditions and range of amplitudes and frequencies. The results indicate that the inclusion of geopolymer considerably enhances the cyclic performance of treated clay in terms of soil attainable accumulated strain, number of load cycles and cyclic shear modulus. Although it is found that a small amount of geopolymer can enhance the initial cyclic response, a larger quantity of geopolymer is necessary to maintain sufficient durability for treated clay over successive loading cycles. However, the enhanced cyclic response of treated clay appeared to be influenced by the increase in stress intensity and applied frequency. It is concluded from this study that geopolymer-treated clay may be suitable to support cyclic loading systems subjected to low loading amplitudes and frequencies such as roads and railways.

近年来，粉煤灰基地质聚合物已成为通常用于土壤稳定的普通波特兰水泥的替代粘合剂，因为发现它们可以增强土壤强度和刚度，并具有降低毒性污染和降低能源消耗的优势。然而，大多数关于地聚合物稳定化土壤的研究都集中在静态载荷而不是循环/动态载荷下处理过的土壤的力学性能上，这需要进一步的研究。本文通过在应力控制条件下，振幅和频率范围内进行的三轴试验研究了经地质聚合物处理的高岭土的循环/动态加载行为。结果表明，就土壤可获得的累积应变而言，土工聚合物的加入大大提高了处理过的粘土的循环性能，载荷循环次数和循环剪切模量。尽管发现少量的地质聚合物可增强初始循环响应，但仍需要大量的地质聚合物以在连续的加载循环中为处理过的粘土保持足够的耐久性。但是，处理后的粘土增强的循环响应似乎受到应力强度和施加频率的增加的影响。从这项研究得出的结论是，经地质聚合物处理的粘土可能适用于支撑承受低载荷振幅和频率的循环载荷系统，例如公路和铁路。但是，处理后的粘土增强的循环响应似乎受到应力强度和施加频率的增加的影响。从这项研究得出的结论是，经地质聚合物处理的粘土可能适用于支撑承受低载荷振幅和频率的循环载荷系统，例如道路和铁路。但是，处理后的粘土增强的循环响应似乎受到应力强度和施加频率的增加的影响。从这项研究得出的结论是，经地质聚合物处理的粘土可能适用于支撑承受低载荷振幅和频率的循环载荷系统，例如道路和铁路。