Authors :
Ashutosh Kumar
Volume/Issue :
Volume 9 - 2024, Issue 1 - January
Google Scholar :
http://tinyurl.com/2dejx35n
Scribd :
http://tinyurl.com/2p825xc4
DOI :
https://doi.org/10.5281/zenodo.10629725
Abstract :
"Green Concrete, renowned for its resource-efficient nature, plays a pivotal role in curbing
environmental impact, reducing carbon dioxide emissions, and minimizing wastewater production.
This study involves a comparative assessment of the strength and durability characteristics between
conventional concrete and green concrete, which incorporates recycled coarse aggregates and fly ash.
In the laboratory setting, three sets of concrete mixtures were meticulously prepared, adhering to
the concrete mix design specified by IS 10262:1982 and IS 456 standards. The findings indicate a
marginal decrease in compressive strength (approximately 10 to 12%) and tensile strength in green
concrete. This reduction might be attributed to the reduced angularity index of the recycled
aggregates utilized. Additionally, there was a notable decrease in the tensile strength, up to 25%,
observed in recycled aggregate concrete compared to conventional concrete, possibly due to reduced
binding of aggregates in the former.
However, the performance of green concrete closely mirrors that of conventional concrete, which
can be attributed to the pozzolanic action facilitated by the presence of fly ash in green concrete.
Moreover, the study reveals a moderate rate of chloride ion permeability in green concrete with
water/cement (W/C) ratios of 0.3 and 0.4. At a slightly higher W/C ratio of 0.5, there is a slightly
elevated rate of chloride ion permeability observed in green concrete."
"Green Concrete, renowned for its resource-efficient nature, plays a pivotal role in curbing
environmental impact, reducing carbon dioxide emissions, and minimizing wastewater production.
This study involves a comparative assessment of the strength and durability characteristics between
conventional concrete and green concrete, which incorporates recycled coarse aggregates and fly ash.
In the laboratory setting, three sets of concrete mixtures were meticulously prepared, adhering to
the concrete mix design specified by IS 10262:1982 and IS 456 standards. The findings indicate a
marginal decrease in compressive strength (approximately 10 to 12%) and tensile strength in green
concrete. This reduction might be attributed to the reduced angularity index of the recycled
aggregates utilized. Additionally, there was a notable decrease in the tensile strength, up to 25%,
observed in recycled aggregate concrete compared to conventional concrete, possibly due to reduced
binding of aggregates in the former.
However, the performance of green concrete closely mirrors that of conventional concrete, which
can be attributed to the pozzolanic action facilitated by the presence of fly ash in green concrete.
Moreover, the study reveals a moderate rate of chloride ion permeability in green concrete with
water/cement (W/C) ratios of 0.3 and 0.4. At a slightly higher W/C ratio of 0.5, there is a slightly
elevated rate of chloride ion permeability observed in green concrete."
