COMPRESSIVE STRENGTH CALIBRATION OF WASHED AND UNWASHED LOCALLY OCCURRING 3/8 GRAVEL FROM VARIOUS WATER CEMENT RATIOS AND CURING AGE

Abstract- The compressive strength of locally occurring 3/8 gravel applying different water cement ratios has been evaluated, these were done through experimental techniques by characterizing the sorted locally occurring 3/8 gravel in washed and unwashed sample for analysis, these two conditions were applied to monitor the compressive strength of locally occurring 3/8 gravel for higher performances of concrete formations. Several results were generated from different water cement ratios for washed and washed gravel including its curing age, these results were subjected to calibration, these concept generated several mathematical equations, the equation represents developed values for unwashed and washed concrete compressive strength at different water cement ratios and curing time, from the graphical representation, it has express the rate of compressive strength at different curing time thus different water cement ratios. The results have express the effect that influences some concrete that developed very low compressive strength. These can be attributed to variations from mix proportion and rate of compaction in various samples, impurities may also cause degradations of concrete compressive strength, calibrating these values has definitely express mathematical equations that will be resolved to predict compressive strength of locally sorted 3/8 gravel at different water cement ratios and curing age