This study evaluate the effect of multiple freeze–thaw (F-T) cycles on the mineralogical and mechanical behaviour of cement-stabilised sand samples with 0, 10, and 20% silt. The results showed that in 28-day samples, the replacement of cement with zeolite enhanced unconfined compressive strength (UCS) and California bearing ratio (CBR). The maximum strength was obtained in samples containing 45% zeolite (Z_opt) and water content (ω) equal to 1.2 times the optimum water content (1.2ω_opt). The UCS and CBR diminished in all samples under F-T cycles. However, samples containing Z_opt had the lowest UCS reduction due to temperature changes. With elevation of Z to greater than Z_opt, the strength decreased due to the imbalance between the components affecting the hydration and pozzolanic reactions. Increasing the volume and reducing the weight of the samples as well as the formation of Ettringite mineral are the main factors in reducing the stabilised soil strength.

本研究评估了多次冻融 (FT) 循环对含 0、10 和 20% 淤泥的水泥稳定砂样品的矿物学和力学行为的影响。结果表明，在 28 天的样品中，用沸石替代水泥提高了无侧限抗压强度 (UCS) 和加州承载比 (CBR)。_{在含有 45% 沸石 (Z opt} ) 且含水量 ( ω ) 等于最佳含水量 (1.2 ω _opt ) 的 1.2 倍的样品中获得了最大强度。在 FT 循环下，所有样本的 UCS 和 CBR 均减少。然而，由于温度变化，含有 Z _{opt的样品的 UCS 降低最低。}随着 Z 升高到大于 Z _opt，由于影响水化和火山灰反应的组分之间的不平衡，强度下降。增加样品的体积和减轻样品的重量以及钙矾石矿物的形成是降低稳定土强度的主要因素。