Advances in concrete construction

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Performance studies on concrete with recycled coarse aggregates

  • Yaragal, Subhash C. (Department of Civil Engineering, National Institute of Technology) ;
  • Teja, Dumpati C. (Department of Civil Engineering, National Institute of Technology) ;
  • Shaffi, Mohammed (Department of Civil Engineering, National Institute of Technology)
  • Received : 2016.11.19
  • Accepted : 2017.01.13
  • Published : 2016.12.25
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Abstract

Concrete continues to be the most consumed construction material in the world, only next to water. Due to rapid increase in construction activities, Construction and Demolition (C&D) waste constitutes a major portion of total solid waste production in the world. It is important to assess the amount of C&D waste being generated and analyse the practices needed to handle this waste from the point of waste utilization, management and disposal addressing the sustainability aspects. The depleting natural resources in the current scenario warrants research to examine viable alternative means, modes and methods for sustainable construction. This study reports processing Recycled Coarse Aggregates (RCA) using a rod mill, for the first time. Parameters such as amount of C&D waste for processing, nature of charge and duration of processing time have been optimized for obtaining good quality RCA. Performance of RCA based concrete and performance enhancement techniques of 50% RCA based concrete are discussed in this paper.

Keywords

References

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