The Effect of Reclaimed Asphalt Pavement in UHPFRC Modified Design Mix

摘要

Ultra High Performance Fibre Reinforced Concretes (UHPFRC) is a highly dense concrete that present outstanding mechanical properties in various applications. This paper addressed the new development in the design of the UHPFRC concrete mixtures incorporating Reclaimed Asphalt Pavement (RAP). An experimental study was conducted to establish the mechanical performances in term of compressive strength and flexural strength of modified UHPFRC. Comparison between different percentages of RAP added in the mixture contributes to the new experimental data of viability in using recycle waste in concrete matrices hence reduce the stockpile of waste in landfill. The addition of 15% and 30% RAP in the design mix showed slightly closed differences of compressive and flexural strength compared to conventional UHPFRC. However the potential values obtained in this study showed the need for further improvement of the UHPFRC design mix with other percentage of RAP to enhance the mechanical performances of concrete.