Impact Factor (2025): 6.9
DOI Prefix: 10.47001/IRJIET
In order to
produce aggregate of acceptable quality, the concrete salvaged from demolition
sites may be utilised, which minimises the need for natural aggregate and, in
turn, lowers the construction industry's ever-growing prices. Additionally, it
conserves energy consumed in production. Therefore, utilising aggregates from
recent demolition activities, the current effort entails a comprehensive
examination of the characteristics of concrete in both its fresh and hardened
states. Concrete created from destroyed concrete is compared to concrete made
from natural aggregate in terms of its qualities (Compressive Strength). In the
current study, recycled aggregate has been used as a substitute for natural
coarse aggregates in various ratios of 0%, 25%, 50%, 75%, and 100%. Studying
numerous characteristics, like as compressive strength, is part of it. When
building roads, recycled materials are utilised as the granular foundation
course. When utilised as a granular base course for roads, recycled aggregate
outperformed natural aggregate. The recycled gravel derived from crushed
concrete is frequently used for foundational work, base and sub-base course
construction, and paving purposes. Recycled aggregate has a slightly lower
compressive strength than original concrete (up to 20% lower in certain
circumstances). The use of particles from destroyed concrete has a major
negative impact on workability but no discernible impact on compressive
strength.
Country : India
IRJIET, Volume 8, Issue 1, January 2024 pp. 19-37