Recycling of Reclaimed Asphalt Pavement in Portland Cement Concrete

The Journal of Engineering Research

Hossam F. Hassan¹  Salim Al-Oraimi¹  Abdulwahid Hago¹ 

[1] Department of Civil and Architectural Engineering, P.O. Box 33, Al-Khoud, P.Code 123, Sultan Qaboos University, Muscat, Sultanate of Oman;

关键词: reclaimed asphalt pavement, concrete, compressive strength, elastic moduli;   

DOI  :  10.24200/tjer.vol6iss1pp37-45

来源: DOAJ

【 摘 要 】

Reclaimed Asphalt Pavement (RAP) is the result of removing old asphalt pavement material. RAP consists of high quality well-graded aggregate coated with asphalt cement. The removal of asphalt concrete is done for reconstruction purposes, resurfacing, or to obtain access to buried utilities. The disposal of RAP represents a large loss of valuable source of high quality aggregate. This research investigates the properties of concrete utilizing recycled reclaimed asphalt pavement (RAP). Two control mixes with normal aggregate were designed with water cement ratios of 0.45 and 0.5. The control mixes resulted in compressive strengths of 50 and 33 MPa after 28 days of curing. The coarse fraction of RAP was used to replace the coarse aggregate with 25, 50, 75, and 100% for both mixtures. In addition to the control mix (0%), the mixes containing RAP were evaluated for slump, compressive strength, flexural strength, and modulus of elasticity. Durability was evaluated using surface absorption test.

【 授权许可】

Unknown