TY - JOUR ID - TI - THE EFFECT OF PARTICLE SIZE DISTRIBUTION (PSD) OF RUBBRIZED SELF-COMPACTING CONCRETE (RSCC) AU - Nahla Naji Hilal AU - Sheelan Mahmoud Hama PY - 2018 VL - 22 IS - 2 conference proceedings (Part-4) SP - 13 EP - 22 JO - Journal of Engineering and Sustainable Development (JEASD) مجلة الهندسة والتنمية المستدامة SN - 25200917 25200925 AB - Three groups of waste scrap: fine rubber, mixed rubber, and tire chips, were used as partial replacement instead of natural fine and coarse aggregate at various level, respectively. The tire chips and three differently graded crumb rubbers (fine crumb rubber, coarse crumb rubber, and mixing crumb rubber) and 5- designated of crumb rubber at 5.0%, 10.0%, 15.0%, 20.0%, and 25.0% replacement levels, were adopted as study parameters. The fresh and hardened properties were investigated. Flexural tensile strength was tested according to ASTMC293 and ASTMC78.The results of this study are affected by size and content of wastes crap tire rubber and the type of testing also effect on the calculated strength. ASTMC293 test method gave higher value than ASTMC78 test method by 30-40%.

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