Rutting Resistance of Rubberized Asphalt Concrete Pavements Containing Reclaimed Asphalt Pavement Mixtures

Abstract

Improved understanding of rutting resistance of a rubberized asphalt concrete pavement that contains reclaimed asphalt pavement ͑RAP͒ is important to stimulating the use of rubberized asphalt mixtures. Use of RAP in the past has proved to be economical, environmentally sound, and effective in increasing the rutting resistance of asphalt mixtures. Rubberized asphalt has been used successfully in improving the mechanical characteristics, such as rutting resistance, of typical hot mix asphalt ͑HMA͒ mixture around the country and the world. The objective of this research was to investigate the rutting resistance characteristics of the rubberized asphalt mixtures through a laboratory testing program. The experimental design included use of two rubber types ͑ambient and cryogenically produced͒, four rubber contents, and three crumb rubber sizes. The results of the experiments indicated that the use of RAP and crumb rubber in the HMA can effectively improve the rut resistance of these mixes.

Performance improvement of a crumb rubber modified bitumen using recycled glass powder

“…Therefore, it is considerably useful for producing asphalt pavements with the most durable service life, resistant to fatigue and thermal cracking, and having low maintenance costs, resistant to rutting and reflecting less traffic noise and lower thermal sensitivity (McNerney et al, 2000;Shen et al, 2005;Shen et al, 2006;California Department of Transportation, 2006;Xiao et al, 2007;2009c). Because of all these advantages, bitumen modification with CR has become a common practice these days in the construction industry.…”

Pengaruh Rendaman pada Indirect Tensile Strength Campuran AC-BC dengan Limbah Plastik sebagai Agregat Pengganti

“…Menurut Xiao et al (2007), kerusakan alur (rutting) pada campuran aspal panas dapat disebabkan karena dua respon mekanik, yaitu kelelehan atau flow dan deformasi plastis. Deformasi plastis terjadi karena pergerakan agregat satu sama lain diikuti dengan kelelehan aspal.…”

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“…Penggunaan RAP diketahui terus meningkat dari tahun ke tahun. Saat ini hampir 91 juta ton perkerasan lama dikupas dan hampir 80%-nya digunakan sebagai RAP (Xiao, 2006 (Kanitpong et. al, 2007).…”