DOI QR코드

DOI QR Code

Experimental and numerical investigations of the influence of reducing cement by adding waste powder rubber on the impact behavior of concrete

  • Al-Tayeb, Mustafa Maher (School of Civil Engineering, Universiti Sains Malaysia, Engineering Campus) ;
  • Abu Bakar, B.H. (School of Civil Engineering, Universiti Sains Malaysia, Engineering Campus) ;
  • Akil, Hazizan Md. (School of Materials & Mineral Resources Engineering, Universiti Sains Malaysia, Engineering Campus) ;
  • Ismail, Hanafi (School of Materials & Mineral Resources Engineering, Universiti Sains Malaysia, Engineering Campus)
  • 투고 : 2011.12.10
  • 심사 : 2012.04.17
  • 발행 : 2013.01.25

초록

In this study, the effect of reducing cement by proportional addition of waste powder rubber on the performance of concrete under impact three-point bending loading were investigated experimentally and numerically. Concrete specimens were prepared by adding 5%, 10% and 20 % of rubber powder as filler to the mix and decreasing the same percentage of cement. For each case, three beams of $50mm{\times}100mm{\times}500mm$ were loaded to failure in a drop-weight impact machine by subjecting them to 20 N weight from 300mm height, while another three similar beams were tested under static load. The bending load-displacement behavior was analyzed for the plain and rubberized specimens, under static and impact loads. A three dimensional finite-element method simulation was also performed by using LUSAS V.14 in order to study the impact load-displacement behavior, and the predictions were validated with the experimental results. It was observed that, despite decreasing the cement content, the proportional addition of powder rubber until 10% could yield enhancements in impact tup, inertial load and bending load.

키워드

참고문헌

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