| dc.description.abstract | In this study, the potential re-use of waste foundry sand in high-strength concrete production was
investigated. Because Concrete is currently one of the most widely used construction material.
Mainly our research was for take a decision to use this concrete as a medium-strength concrete
with decrease the materials costing by use a waste (valueless) materials which is Foundry Sand.
Foundry Sand produce from Re-Rolling mill. Billet heat by 1200-1500 degree Celsius
Temperature to produce MS Bar, Angle etc. Then the fracture of the Billet (like as Rust) fall
down and finally it’s the Foundry Sand.
So we used Foundry sand (which is a waste materials & has no value) as a alternative of Fine
Aggregate. For use it we can decrease the concrete costing.
The natural fine-sand is replaced with waste foundry sand (50%, 60%, 70%and 100%). The
findings result from a series of test program has shown increasing in compressive strength which
is directly related to waste foundry inclusion in concrete. Nevertheless the concrete with 10%
waste foundry sand exhibits almost similar results to that of the control one. The workability of
the fresh concrete decreases with the increase of the waste foundry sand ratio.
The obtained results satisfied the acceptable limits set by the American Concrete Institute (ACI),
which is for normal concrete is 20 Mpa to 25 Mpa and we got the strength by use of Foundry
Sand is 25.08 Mpa. We used the different percentage of Foundry Sand replaced by Fine
Aggregate that’s 50%, 60%, 70%and 100%In concrete mix we used W/C ratio 0.48, concrete
mix ratio was 1:1.5:3. Compressive strength calculation of all those samples and their
comparison was the basic theme of the research. For this purpose cylinders were casted and
checked under Universal Testing Machine (UTM) for compressive strength. | en_US |
