An Experimental Study on Replacement of Recycled Coarse Aggregates Instead of Coarse Aggregates in High Strength Concrete
Muramalla Chandi Srinivas
, O. Suresh , Dr. N C Anil
Geo polymer concrete, BRHA, Compressive Strength Split Tensile, Durability Properties
Globally, the utilization of concrete particularly high-strength concrete has been increasing day-by-day due to rapid industrialization and infrastructural developments. An enormous quantity of natural coarse aggregate is required for making concrete to meet the huge demand. The natural resources of coarse aggregate are depleting rapidly all over the world and urgently need to be conserved. On the other hand, millions of tonnes of construction and demolition (C&D) wastes are being generated from different sources. The disposal of these huge quantities of C&D waste is posing a big problem to the local administration and environment. Further, there are areas where the natural coarse aggregates are scarcely available and are hauled from long distances. These issues have to be addressed urgently. A review of the literature suggests that obtaining the coarse aggregates from C&D waste is a possible solution to these issues. Therefore, in the present work, an experimental attempt has been made to utilize the recycled coarse aggregate (RCA) from C&D waste to the maximum possible extent for producing the high-strength concrete. The experimental work has been carried out in two phases: (i) Influence of processing technique on RAC and (ii) Influence of mixing approaches on RAC. The mix proportion of M75 grade was kept constant throughout the study. First, the influence of processing technique on the properties of high-strength RAC has been studied to select the most suitable processed recycled aggregate for making high-strength concrete. In the second phase, the influence of various two-stage mixing approaches on the properties of high-strength RAC has been studied to select the most appropriate two-stage mixing approach after that the resultant concrete mixes are: i) Mechanical properties (Compressive Strength, Flexural strength, Split Tensile Strength, ii) Durability properties (Acid Reistance, Sea Water Resistance) have been studied and compared with nominal cement concrete.
"An Experimental Study on Replacement of Recycled Coarse Aggregates Instead of Coarse Aggregates in High Strength Concrete", IJSDR - International Journal of Scientific Development and Research (www.IJSDR.org), ISSN:2455-2631, Vol.5, Issue 11, page no.36 - 49, November-2020, Available :https://ijsdr.org/papers/IJSDR2011008.pdf
Volume 5
Issue 11,
November-2020
Pages : 36 - 49
Paper Reg. ID: IJSDR_192688
Published Paper Id: IJSDR2011008
Downloads: 000347199
Research Area: Engineering
Country: VISAKHAPATNAM, ANDHRA PRADESH, India
ISSN: 2455-2631 | IMPACT FACTOR: 9.15 Calculated By Google Scholar | ESTD YEAR: 2016
An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 9.15 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator
Publisher: IJSDR(IJ Publication) Janvi Wave
