EFFECT OF USED ENGINE OIL ON SHEAR CAPACITY OF CONCRETE BEAMS CONTAINING FLY ASH

This research attempted to study the "Effect of Used Engine Oil on Shear Capacity of
Concrete Beam Containing Fly Ash." Due to the high cost for a proper waste disposal
and the restrictions in environmental rules and regulations, it has become a trend
nowadays to reuse processed and unprocessed industrial wastes as one of the materials
in concrete technology. Leakage of used engine oil into cement concrete element in
older cement grinding unit gives it a greater resistance to freezing and thawing. This
property is quite similar to the admixture of concrete added with commercial air
entraining agent. The chemical compound that found in the cement paste containing
dosage of 0.15 % of UEO are quite similar to the cement paste contain 1 00% of cement.
No hazardous or contaminated chemicals were present in the cement paste that could
harm its properties. Ten full scale beams were fabricated to investigate the effect of
UEO in concrete beam. Result shows that beam with 0.15 % UEO enhance its
properties strength up to 32.26 % higher than that of normal concrete beam. This
strength is quite similar to the beam added with commercial air entraining agent ( 4 5.3 9
%higher compared to normal concrete beam). Other cement replacement admixture, fly
ash, rice husk ash, and super plasticizer were also been investigated with the used
engine oil. The results were quite impressing and no significant effect in the ultimate
load or load deflection behavior on concrete beam was observed.