Investigating Fresh and Hardened Properties of Concrete Made with Laboratory Waste as Coarse Recycled Aggregates

Authors(3) :-Pinal C. Khergamwala, Dr. Jagbir Singh, Dr. Rajesh Kumar

The objective of this research is to investigate the workability and compressive strength of recycled aggregate concrete (RAC) for M 20, M 30 and M 40 grade of concrete with 0, 25, 50, 75 and 100 % replacement of natural aggregates with recycled concrete aggregates (RA). A total of 90 cube specimens were cast for testing compressive strength of RAC after 7 days and 28 days and comparative analysis was made. Results of slump test showed that workability of concretes decreased with increase in the percentage of recycled aggregate and the values increased with the increase in the grade of concrete due to the higher cement content in the higher-grade mix. For strength characteristics, the results showed a gradually decreasing trend in compressive strength as the percentage of recycled aggregate used in the specimens increased. The strength of recycled aggregate concrete decreases with the increase in grade without any admixture but still the use of RA up to 50 % in concrete mixture is found to have workability and compressive strength near to that of natural aggregate concrete and can be used effectively for structural concrete. For M 20, recycled aggregates up to 100 % can be utilized without any chemical admixture.

Authors and Affiliations

Pinal C. Khergamwala
Ph D Scholar, IKG Punjab Technical University, Jalandhar, Punjab, India
Dr. Jagbir Singh
Department of Civil Engineering, Guru Nanak Dev Engineering College, Ludhiana, Punjab, India
Dr. Rajesh Kumar
Department of Civil Engineering, Chandigarh College of Engineering & Technology, Chandigarh, India

Workability, Mechanical Properties, Recycled Aggregate, Structural Concrete, Compressive Strength, Higher Grade

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Publication Details

Published in : Volume 3 | Issue 5 | July-August 2017
Date of Publication : 2017-08-31
License:  This work is licensed under a Creative Commons Attribution 4.0 International License.
Page(s) : 615-621
Manuscript Number : IJSRSET1734154
Publisher : Technoscience Academy

Print ISSN : 2395-1990, Online ISSN : 2394-4099

Cite This Article :

Pinal C. Khergamwala, Dr. Jagbir Singh, Dr. Rajesh Kumar, " Investigating Fresh and Hardened Properties of Concrete Made with Laboratory Waste as Coarse Recycled Aggregates, International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 3, Issue 5, pp.615-621, July-August-2017.
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