Effect of Using Reclaimed Asphalt Pavement on Asphalt MixPerformance
Journal Title: IOSR Journals (IOSR Journal of Computer Engineering) - Year 2014, Vol 16, Issue 6
Abstract
Abstract: Throughout history, the earth`s resources have been exploited without considering their eventuallimitations. At present, one of the key challenges is to concentrate on saving natural resources for futuregenerations while bringing industrial activities into a more stable long-term balance between environmentalpreservation and costs. The main purpose of this study aims to investigate the use of recycled aggregatepavement (RAP) materials in highway and to determine the optimum reclaimed percent. To achieve the studyobjective, a comprehensive experimental program was designed and conducted. After choosing the studymaterials, qualification tests were conducted on the study materials. Marshall test was conducted on six asphaltmixtures with different percentages of reclaimed materials. Asphalt concrete specimens were then prepared atoptimum asphalt content resulted in Marshall test to be investigated through indirect tensile strength test andloss of stability test. The six asphalt mixtures contain different percentages of RAP (i.e.0%, 10%, 20%, 25%30% and 40%). Analyzing the study results, it can be concluded that a percent of RAP may be 30% to ensuresuperior field performance after construction. Finally, the study recommended to conduct a large scaleexperiment to take into consideration more cases of mixing components and conditions.
Authors and Affiliations
Ahmed Mohamady, Ph. D. ; , Ashraf Elshahat, Ph. D. ; , Mahmoud Fathy AbdElmaksoud, Ph. D. ; , ENG Mohamed Hoseny Abdallah
Keywords
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