Repair of Deteriorating Pavement Using Recycle Concrete Materials

摘要

The incessant demand for new high strength and recycle material is ever increasing. Concrete material consists of portland cement, clean river sand, water and coarse aggregate. In this research, the road structure is made up from flexible pavement. The research was carried out to upgrade the standard concrete material with the recycle concrete material that can be applied to within the study area. The recycle concrete materials come from industrial waste. Shredded tyre rubber and grinded plastic bottles (polypropylene, PP) have been reused as coarse aggregate replacement and clean river sand in concrete mixture respectively. Both coarse aggregate and clean river sand were replaced by 10%, 20%, 30%, 40% and 50% of shredded tyre rubber and grinded plastic bottles (polypropylene, PP) respectively. It was found that the optimum percentage of recycle concrete material that can be used to get good value of indirect tensile strength is in the range 10% to 30% of shredded tyre rubber and grinded plastic bottles (polypropylene, PP). The research study was carried out to utilize the waste material in recycle concrete material for cost saving and improvement in performance of roads pavement and to determine the indirect tensile strength of the road pavements.