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Structural Engineering and Mechanics Volume 67, Number 3, August10 2018 , pages 283-290 DOI: https://doi.org/10.12989/sem.2018.67.3.283 |
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Effect of using recycled coarse aggregate and recycled asphalt pavement on the properties of pervious concrete |
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Nasim K. Shatarat, Hasan N. Katkhuda, Khaled H. Hyari and Ibrahim Asi
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| Abstract | ||
| This paper presents the results of a study that investigated the influence of using recycled coarse aggregate (RCA) and recycled asphalt pavement (RAP) on the properties of pervious concrete (PC). The natural aggregate (NA) was replaced by RCA and RAP in the PC with replacement levels of 0%, 20%, 40%, 60% and 80% by the total weight of NA, respectively. In addition to incorporating RAP and RCA in the same mixes with replacement levels of: (1) 20% RAP and 80% RCA; (2) 60% RAP and 40% RCA; and (3) 80% RAP and 20% RCA. Water permeability, thermal conductivity, density, porosity, void content, and compressive, splitting tensile and flexural strengths were studied in this paper. The results showed that using RCA, RAP, and (RAP-RCA) enhanced the properties of PC in general and improved the mechanical properties significantly in particular. The optimum mix was reported to be the 60% RAP and 40% RCA. Accordingly, the RAP has the potential to be used in PC in order to reduce the negative impact of RAP on the human health and environment. | ||
| Key Words | ||
| recycled coarse aggregate; recycled asphalt pavement; pervious concrete; mechanical properties; thermal conductivity | ||
| Address | ||
| Nasim K. Shatarat: Civil Engineering Department, The University of Jordan, 11942, Amman, Jordan Hasan N. Katkhuda and Khaled H. Hyari: Civil Engineering Department, The Hashemite University, P. O. Box 330127, 13115, Zarqa, Jordan Ibrahim Asi: Arab Center for Engineering Studies, Amman, Jordan | ||