The present study investigates the potential of using Reclaimed Asphalt Pavement (RAP) aggregates for sustainable concrete paver blocks. Using RAP in its as-received state (with stiff asphalt coating, dust impurities, and agglomerated particles) and a higher proportion of coarse aggregates in the paver block mix design were some of the barriers tried to overcome during the experimental investigation. Fresh, mechanical and durability properties of five different mixes (including a control mix), volumetrically replacing the natural coarse aggregates with coarse RAP in the proportions of 25–100% (at an interval of 25%) were studied. Proper time-controlled compaction using a vibratory hammer and table vibrator helped adequately fabricating the paver blocks with a higher proportion of coarse aggregates in their aggregate skeleton. The results from this study indicated that the inclusion of RAP deteriorated the quality of the manufactured paver blocks both in terms of mechanical and durability properties. However, based on the performance, the paver blocks can be used for medium-traffic based applications.

本研究调查了将再​​生沥青路面 (RAP) 骨料用于可持续混凝土摊铺机砌块的潜力。使用原样状态的 RAP（具有坚硬的沥青涂层、灰尘杂质和团聚颗粒）和在摊铺机砌块混合设计中使用更高比例的粗骨料是实验研究期间试图克服的一些障碍。研究了五种不同混合物（包括对照混合物）的新鲜、机械和耐久性性能，用 25-100% 的比例（以 25% 的间隔）用粗 RAP 体积替代天然粗骨料。使用振动锤和台式振动器进行适当的时间控制压实有助于充分制造在其骨料骨架中具有更高比例的粗骨料的摊铺机砌块。这项研究的结果表明，加入 RAP 会降低制造的摊铺机砌块的机械性能和耐久性能的质量。然而，根据性能，摊铺机块可用于基于中等流量的应用。