dc.description.abstract | Construction using concrete is getting more and more complicated, therefore it's critical
to create structures that are both affordable and long-lasting. To compare the
compressive strengths of different brands of Portland composite cement, numerous
experimental studies have been conducted. The goal of the study is to one distinct
grades of Portland Composite Cement (PCC) M15 a in order to assess the compressive
strength of concrete. Three brands of cement were used for the experiment. They are A
cement, B cement, C cement. Three types of materials were used for the experiment
They are water, Sylhet sand, brick chips and recycle aggregate. The specimens were
mix the ratio of (1:2:3.3).
The objectives of the study are to determine the impressive strength of concrete by
using differently types of Portland Composite Cement (PCC) grades M15. The
Materials used for the experiment are 3 types. They are brick chips, Recycle Aggregates
and combined Recycles and brick chips. The mass of the specimens was recorded
carefully for 7 and 28 days the values of compressive strength of concrete for Scan
Cement, Shah special Cement and Fresh Cement. in this we have prepared different
mix of cement and coarse aggregate. There are 9 different types of mixing in this
experiment, such as- A1 cement with Coarse aggregates, A2 cement with Combined
aggregates, A3 cement with Recycle aggregates, B1 cement with Coarse aggregates,
B2 cement with Combined aggregates, B3 cement with Recycle aggregates, C1 cement
with Coarse aggregates, C2 cement with Combined aggregates, C3 cement with
Recycle aggregates, 13.5 Mpa,13.7 Mpa, 20.9 Mpa, 12.3 Mpa , 17.5 Mpa, 21.5 Mpa,
8.48 Mpa, 13 Mpa and 14.5 Mpa for 7 days. Respectively for 28 days, 15.64 Mpa,19.57
Mpa,25.52 Mpa,12.42 Mpa, 19.03 Mpa , 24.67 Mpa, 12.11 Mpa, 13.93 Mpa, and 20.61
Mpa For 7 days, the highest compressive strength of the concrete found 21.5 Mpa For
B cement with Recycle aggregates M15 and the lowest compressive strength is 8.48
Mpa for C Cement with Coarse aggregates grade M15. For 28 days, the highest
compressive strength of the concrete found 25.52 Mpa for A Cement with Recycle
aggregates, grades M15 and the lowest compressive strength is 12.11 Mpa for C
Cement with Coarse aggregates, grades M15. The compressive strength of A Cement
with Recycle aggregates was better than the other variants of the mixing. | en_US |