ISBN-13: 9789819975150 / Angielski
ISBN-13: 9789819975150 / Angielski
Background on Techniques for Sustainable Use of Recycled Aggregate and
Dr. Subhasis Pradhan is presently working as an Assistant Professor in the Department of Civil Engineering at Birla Institute of Technology & Science, Pilani, India. He graduated from Veer Surendra Sai University of Technology, India in 2011. He completed his M.Tech. in Structural Engineering from Indian Institute of Technology (IIT) Guwahati in 2014 and subsequently joined IIT Kharagpur for his Ph.D. research. His research on “Performance of Recycled Aggregate Concrete and Structural Members: Particle Packing Method of Mix Design Approach” during Ph.D. earned the acknowledgement from the research community. In January 2020, he joined Nanyang Technological University (NTU) as a Postdoctoral Research Fellow. During Postdoc he worked on alternative binders, such as LC3 binder and one-part geopolymer while using marine clay, which is one of the major construction wastes in Singapore. His Ph.D. and postdoc research works are published in journals of international repute. Moreover, a Singapore patent is filed based on his research on LC3 binder using marine clay. His main research interests are in concrete technology, sustainable construction materials, alternative binders, geopolymer, CO2 sequestration in concrete, microstructural characterization, fracture behavior of concrete, Life Cycle Assessment and behavior of reinforced concrete members (beam, column and slab).
This book highlights the use of commercially available recycled aggregate concrete (RAC) extracted from multiple construction and demolition sites, considering it as a viable alternative to conventional aggregate. It further describes the advanced techniques, such as, scanning electron microscopy, nanoindentation, thermogravimetric analysis and X-ray microtomography shedding light on the deep-rooted causes of inferior macro-mechanical performance of RAC and the advantages of particle packing method design approach in this regard. It then describes the improved properties of RAC with the help of macro-mechanical performance studies, microstructural characterization and fracture analysis. The systematic and in-depth presentation of the use of recycled coarse aggregate as an alternative to conventional aggregate for the preparation of structural concrete will guide researchers on subsequent research in RAC and provide assistance to structural engineers and concrete manufacturers for the usage of RAC.
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