Analysis on the Strength of 5" CUB with Oyster Shell as Component of the Aggregates

Abstract

This study explored the possibility of using oyster shells as component of aggregates in the production of5" CHB by determining its compressive strength and comparing this to the strength of5" CHB takenfrom the construction site. Twelve (12) samples using different proportions were produced by researchers and anotherthree (3) samples were takenfrom the construction. All the samples brought to the testing laboratory are below the required compressive strengthfor non-load bearing concrete hollow blocks. However, it is noteworthy that the samples with oystershells have higher compressive strength compared with the samples taken from the construction site. It was also found out that the lesser the number ofpieces ofCHB produced the higheristhe compressive strength. There are also significant differences among and between the 5" CHB produced using different proportions including the samples taken from the construction site.