The present research focused on the effect of freeze-thaw cycles on behaviour of roller-compacted concrete pavement (RCCP) reinforced with recycled polypropylene fibres. RCCP specimens were designed with dry aggregates, four water to cement ratios of 0.3, 0.4, 0.5 and 0.6 and four fibre dosages of 0, 1, 3 and 5 kg/m³. Experiments were performed before and after exposure to freeze-thaw cycles in the presence of de-icing salt. The main experiments included the workability test by measuring the Vebe time, the ultrasonic pulse velocity (UPV), the modulus of rupture and the fatigue resistance with three-point bending method. Based on the results of the UPV test, which was performed before freeze-thaw cycles, and every 60 cycles up to 300 cycles, the specimens designed with water to cement ratios of 0.4 and 0.5 and reinforced with 1 kg/m³ fibre had better performance than other reinforced RCCPs. Modulus of rupture and fatigue tests were conducted after 0, 150 and 300 freeze-thaw cycles. The results of the modulus of rupture tests were largely similar to the UPV test. In contrast, given to the fatigue test results, the specimens containing 1 and 3 kg/m³ fibre exhibited similar behaviour after being exposed to freeze-thaw conditions and had a higher fatigue life than unreinforced specimens and those reinforced with 5 kg/m³ fibre. According to the results of monotonic and cyclic loadings, RCCPs with water to cement ratios of 0.4 and 0.5 and fibre contents of 1 and 3 kg/m³ are recommended to be used in real practice.

目前的研究重点是冻融循环对用再生聚丙烯纤维增强的碾压混凝土路面 (RCCP) 行为的影响。RCCP 试样设计有干骨料，四种水灰比为 0.3、0.4、0.5 和 0.6 以及四种纤维剂量为 0、1、3 和 5 kg/m ³. 在存在除冰盐的情况下，在暴露于冻融循环之前和之后进行了实验。主要实验包括通过测量Vebe时间、超声脉冲速度(UPV)、断裂模量和三点弯曲法的疲劳强度进行可加工性试验。根据在冻融循环之前进行的 UPV 测试结果，每 60 次循环至 300 次循环，设计的试样水灰比为 0.4 和 0.5，并用 1 kg/m ³加固纤维比其他增强型 RCCP 具有更好的性能。在 0、150 和 300 次冻融循环后进行断裂模量和疲劳测试。断裂模量测试的结果与 UPV 测试大体相似。相比之下，从疲劳测试结果来看，含有 1 和 3 kg/m ³纤维的试样在暴露于冻融条件后表现出相似的行为，并且比未增强试样和用 5 kg/m ³增强的试样具有更高的疲劳寿命纤维。根据单调和循环载荷的结果，建议在实际实践中使用水灰比为0.4和0.5，纤维含量为1和3 kg/m ^{3 的}RCCPs 。