SWAY OF STEEL FIBER AND RECYCLED AGGREGATE CONTENT ON MECHANICAL PROPERTIES OF RECYCLED AGGREGATE CONCRETE
Journal Title: International Journal of Civil Engineering and Technology - Year 2019, Vol 10, Issue 3
Abstract
The topic of recycling concrete waste is significant in the general effort for prospective growth and environmental conservation in our time. Therefore, the use of recycled concrete aggregate as an alternative to natural coarse aggregate in concrete mixes is an essential solution for preserving the natural aggregate resources and saving landfill spaces. This paper's main goal is to assess the mechanical properties of recycled aggregate concrete with target strength 30Mpa after 28 days at different replacement ratio and to improve its behavior by adding steel fiber. The main parameters of this study are recycled concrete aggregate ratio and steel fiber content. Sixteen concrete mixtures are designed with different RCA ratio (0%, 30%, 70%, and 100%) and hooked steel fiber (0%, 0.5%, 1%, and 1.5%) by volume at fixed (W/ C ratio=0.4). The results showed that the mechanical property of RAC decreases gradually with increasing RCA ratio compared to control mixes. Nevertheless, the results ameliorate with increasing the content of steel fiber.
Authors and Affiliations
MOHAMED HUSAIN, KHALED FAWZY and KHALED FAWZY KOTB
Keywords
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