ABSTRACT
Recent advancement in construction practices demands the utilisation of construction materials in a sustainable way which promotes the use of industrial by-products as Supplementary Cementitious Materials (SCMs) and alternative aggregates to protect diminishing natural resources. The present study proposed the utilisation of high-volume fly ash in the production of Self-Compacting Concrete (SCC) made with varying proportions of coarse and fine recycled aggregates. Natural Aggregates (NA) of both coarse and fine type in high-volume fly ash SCC were replaced with the respective type of recycled aggregates at the dosage of 0%, 50% and 100% by volume and their hardened state behaviour was studied in terms of compressive strength, chloride ion permeability, initial rate of water absorption, sorptivity coefficient and sulphate resistance. Results of the investigation recommends uses of Silica Fume (SF) at 10% dosages in ternary blends of cement along with high-volume fly ash for the production of SCC at 50% replacement level of both coarse and fine recycled aggregates, without compromising the hardened state properties of concrete.
Acknowledgments
The authors acknowledge the support of the staff of Structures Testing Laboratory at Dr. B R Ambedkar National Institute of Technology, Jalandhar, India during the experimental work reported in the paper.
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The authors whose names are listed immediately below certify that they have NO affiliations with or involvement in any organization or entity with any financial interest (such as honoraria; educational grants; participation in speakers’ bureaus; membership, employment, consultancies, stock ownership, or other equity interest; and expert testimony or patent licensing arrangements), or non-financial interest (such as personal or professional relationships, affiliations, knowledge or beliefs) in the subject matter or materials discussed in this manuscript.
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Notes on contributors
Sudheer Kumar
Sudheer Kumar completed his M.tech from Dr B R Ambedkar National Institute of Technology, Jalandhar and now doing Governement job.
Kanish Kapoor
Kanish Kapoor is an Assistant Professor in Department of Civil Engineeirng at Dr B R Ambedkar National Institute of Technology, Jalandhar. His research interests are Concrete composites, Waste Utilization, Self compacting concrete.
Ran Bir Singh
Ran Bir Singh is an Assistant Professor in Central Univeristy of Haryana. His research interests are Rheology of Self compacting concrete and waster utilization in concrete.
Paramveer Singh
Paramveer Singh is a Ph.D Research Scholar in Civil Engineering department at Dr B R Ambedkar National Institute of Technology, Jalandhar.