ABSTRACT

Polyester concrete PC is composed of aggregate, polyester resin as binding material, and fillers when needed. Sustainable polyester concrete pavement SPCP is composed of recycled aggregate, polyester resin as binding material, and fine waste material used as fillers like fly ash. SPCP can be used as rigid pavement construction. Because of its properties like high compressive strength, high flexural strength, fast curing, high specific strength, and resistance to chemical attacks. A high flexural strength is the main requirement for pavement structures to resist cyclic load from traffic. The present study attempted to investigate the physical and mechanical properties of sustainable polyester concrete pavement SPCP contain different types of recycled aggregates RA in addition to natural aggregate, and fly ash as a mineral filler. The study used reclaimed asphalt pavement RAP, recycled concrete aggregate RCA, and crushed bricks aggregate CBA, with different percentages by weight (0%, 25%, 75%, and 100%) as a replacement with natural aggregate NA. The test results indicated that aggregate characteristics have a significant influence on the properties of SPCP. The best performance, especially in flexural strength, was obtained with recycled concrete aggregate.

摘要

聚酯混凝土PC由骨料、聚酯树脂作为粘结材料，必要时加入填料组成。可持续聚酯混凝土路面 SPCP 由再生骨料、聚酯树脂作为粘结材料和用作粉煤灰等填料的精细废料组成。SPCP 可用作刚性路面结构。由于其具有高抗压强度、高弯曲强度、快速固化、高比强度和耐化学腐蚀等特性。高抗弯强度是路面结构抵抗交通循环荷载的主要要求。本研究试图研究可持续聚酯混凝土路面 SPCP 的物理和力学性能，其中除了天然骨料外，还含有不同类型的再生骨料 RA，以及作为矿物填料的粉煤灰。该研究使用不同重量百分比（0%、25%、75% 和 100%）的再生沥青路面 RAP、再生混凝土骨料 RCA 和碎砖骨料 CBA 作为天然骨料 NA 的替代品。试验结果表明，骨料特性对SPCP的性能有显着影响。使用再生混凝土骨料获得了最佳性能，特别是在抗弯强度方面。