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Concrete is the most widely used man made construction material in construction industries.
It is mainly composed of cement, fine aggregate, coarse aggregate and water. The properties
of concrete are mainly affected by its ingredientβs types, quantity and quality. The cement is
used to bind the materials in concrete. Fine aggregate and coarse aggregate will fill the most
of the spaces in concrete. There are numerous materials that can replace each constituent in
concrete. In this study grinded CW was used to partially replace coarse aggregate and SD is
replaced fine aggregate at 0% ,5% 𝐶𝑊 β 25% 𝑆𝐷, 10%𝐶𝑊 β 50%𝑆𝐷, 15% 𝐶𝑊 β
75%𝑆𝐷, 𝑎𝑛𝑑 20%𝐶𝑊 β 100% 𝑆𝐷 dosage by weight proportion to evaluate various strength
parameters like compressive strength, split tensile strength and flexural strength. Concrete is
strong in compression but it is weak in tension, brittle, low resistant to cracking, lower impact
strength and heavy weight. CW and SD are one of the solid wastes in our surroundings which
mostly pollute the environment condition. In order to overcome such types of problems related
to pollution of environment the study deals the engineering property of concrete with CW and
SD waste.
Workability, compressive strength, split tensile strength and flexural strength test were
performed to determine the competence of reusing CW and SD in the production of concrete.
The average of three identical sample tests for each strength was used to determine the strength
of concrete and tested at 7, 14, and 28 days of curing age. All cubes were made with
150𝑚𝑚 Γ 150𝑚𝑚 Γ 150𝑚𝑚, cylinders with 100mm diameter and 200 mm height and beams
with cross-section 100𝑚𝑚 Γ 100𝑚𝑚 and length of 500mm size.
The study result revealed that the density increases for all percentage replacement, mechanical
strength of concrete decreases with increasing dosage of CW and SD and workability
decreases with the increase of CW and SD. The optimum dosage was found to be 10% 𝐶𝑊 β
50% 𝑆𝐷. At optimum the compressive strength decreases up to 2.93%, tensile strength
decreases by 2.4% and flexural strength decreases by 3.67% 𝑓𝑜𝑟 10% 𝐶𝑊 β
50% 𝑆𝐷 replacement in the concrete mix when compared with control concrete. The
analytical simulation is done by ABAQUS version 6.14.5 on flexural strength of beam to check
the load control and modulus rupture to validate with experiment |
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