Traffic traversing on an asphalt pavement leads to the development of hydrodynamic stress. Hence, moisture-induced stress tester (MIST) was developed to simulate the phenomenon. However, MIST has the propensity to affect the air voids (V_a) and permeability (k) characteristics of the conditioned mix. In this study, an attempt has been made to understand the effect of varying stress cycles of MIST on V_a and k. Furthermore, due to the advantages associated with recycled asphalt pavement (RAP) mixes, this study also considers RAP in varying proportions of 10%, 20%, 30% and 40% by weight. The results indicate that MIST conditioning affects both V_a and k of asphalt mixes. RAP mixes were observed to undergo higher changes in V_a and depicted higher k than control mix. It is expected that the results of the current study may prove to be significant in explaining the change in performance parameters due to MIST conditioning.

在沥青路面上行驶的交通会导致水动力应力的发展。因此，开发了湿气诱导应力测试仪（MIST）来模拟这种现象。然而，MIST 具有影响调节混合物的空气空隙 ( V _a ) 和渗透性 ( k ) 特性的倾向。在这项研究中，试图了解 MIST 的不同应力循环对V _a和k的影响。此外，由于与再生沥青路面 (RAP) 混合料相关的优势，本研究还考虑了 10%、20%、30% 和 40% 重量比例的 RAP。结果表明 MIST 调节影响V _a和k的沥青混合料。观察到 RAP 混合物的V _a变化较大，并且k值高于对照混合物。预计当前研究的结果可能在解释 MIST 调节导致的性能参数变化方面具有重要意义。