| dc.description.abstract | Nowadays, concrete construction is becoming very much complex. Everyone try to
build cost effective and durable structures. So many experimental works have been
performed to gather both of these quality by determining the compressive strength
of concrete. The objectives of our study is to find the difference between the values
of compressive strength of concrete by using two different types of coarse aggregate.
The materials used for the experiment are new normal black stone, construction and
demolition waste, sylhet sand and water. Concrete prepared with the ratio of 1:2:4
and water cement ratio was 46%. From fluid construction we know that, M15 grade
concrete with mixing properties ratio of 1:2:4 and w/c ratio of 45%, the value of
compressive strength is 15 MPa or N/mm2
. [1] From the experiment, For N-100%,
compressive strength is almost accurate For N-70% and W-30%, compressive
strength is almost 8% less than normal concrete. For N-50% and W-50%,
compressive strength is almost 20% less than normal concrete. For N-30% and W 70%, compressive strength is almost 27% less than normal concrete. For W-100%,
compressive strength is almost 25% less than normal concrete.
So, for cost saving, environmental health and for reuse of Construction and
Demolition waste, this experiment will help us for construction management. | en_US |
