This study looks into the use of waste clay bricks, in roller-compacted concrete pavement (RCCP). To this end, waste were used in RCCP (at 0% to 100%) as a substitute for sand. Silica fume (SF) was also used to enhance the mechanical properties of the concrete. Mix designs containing 5% to 15% of SF were firstly prepared to determine the optimal amount of SF in the RCCP. Then, SF were used in bricks’ combination. Vebe, ultrasonic pulse velocity, compressive strength, water absorption, splitting tensile strength, abrasion resistance, and skid resistance tests were carried out on the samples. The results indicated that up to 25% substitution of brick waste for sand in RCCP did not cause any significant adverse effect. However, in amounts higher than 50%, the properties of concrete were affected. Thus, SF improved concrete properties and is capable of offsetting the negative effects of using bricks waste in RCCP.

本研究探讨了废粘土砖在碾压混凝土路面 (RCCP) 中的使用。为此，在 RCCP 中使用废物（0% 到 100%）作为沙子的替代品。硅灰 (SF) 也用于提高混凝土的机械性能。首先制备含有 5% 至 15% SF 的混合设计，以确定 RCCP 中 SF 的最佳量。然后，SF被用于砖的组合。对样品进行了Vebe、超声脉冲速度、抗压强度、吸水率、劈裂抗拉强度、耐磨性和防滑性测试。结果表明，RCCP 中高达 25% 的废砖替代沙子不会造成任何显着的不利影响。然而，当用量高于 50% 时，混凝土的性能会受到影响。因此，