Effect of scba substitution on mechanical properties of clay bricks

The present work reports the recycling of SCBA waste as a raw material in brick making industries, through replacement of natural clay up to 20wt. %. Initially the samples SCBA and BMC were characterized by XRF. The results of XRF reveal that both SCBA and BMC contain a large amount of silica and tracer amount of oxides of aluminium and iron. Using SCBA in different proportions clay brick pieces were prepared, and then tested, so as to determine their mechanical properties such as linear shrinkage, water absorption, porosity and compressive strength. The test results indicate that the SCBA waste could be used as filler in clay bricks, thus enhancing the possibility of its reuse in a safe and sustainable way. The surface morphology and the microstructure of the product were analyzed through Scanning Electron Microscope (SEM).