WASTE SHELL CEMENT COMPOSITES

The project purpose was to test the usability of seashell waste in concrete. Testing consisted of eight mix proportions that contained conch or oyster shells. Shells were used as a substitute for 10% or 25% sand, and 5% cement powder pending the mix proportion. Four mixes contained vinegar treated shells to determine if that affected the strength. Mixes were all compared to the control and each other through a series of tests including: 3-point bend, compressive, split-tensile, and shrinkage