Abstract
The approach recommended in this study is to develop an economically feasible and environmentally friendly cement, by partial replacement of the clinker with artificial pozzolans without affecting the performance of the cement. These artificial pozzolans are obtained by heat treatment of residual waste from animal by-products, in this case, chicken egg shells. These materials, after calcination at 750°C, acquire a large presence of lime (CaO) which allows them to react easily with the silica SiO2 contained in the clinker. In the present study, the calcined powder of CESA chicken eggshells is used as a substitute for clinker in different proportions (15%, 30% and 45%) as a replacement for ordinary Portland cement (OPC). The results obtained after calcination at 750°C, a better pozzolanicity, synonymous with the presence of calcite CaCO3.
Published Version
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