Feasibility Study for the Partial Portland Clinker Replacement by Calcined Algerian Kaolinitic Clays for Sustainable Materials

Currently, the world’s population exceeded 8 billion people on Earth, there will be 9.7 then 10.4 billion people on our planet by 2050 and 2100 respectively. This growth of the world’s population will undoubtedly lead to an increasing demand for concrete infrastructure. However, this material, if the conditions are met, is attacked from interior by the alkali-aggregate reaction AAR. To avoid this mess, the concrete infrastructure can be achieved with the partial substitution of clinker by calcined clays, intended for the formulation of structural concrete. The results of characterization by Inductively Coupled Plasma ICP, differential thermal analysis DTA/TG and x-ray diffraction XRD of Algerian kaolinitic clays highlight the feasibility of partial clinker replacement by certain Algerian kaolin clays, while others are not eligible for partial replacement.