Calcium aluminate cement (CAC) concretes are desirable owing to their rapid strength development and resistance high temperatures, sulfates acids. They suffer two drawbacks, however, cost loss due conversion of water-rich hydration products more stable structures, resulting in a drop strength. Although its rate is dependent on temperature moisture, the process thermodynamically inevitable but c...

This paper presents a study of the potential use iron mining tailings as artificial pozzolan (metakaolin) after their submission to thermal treatment via calcination in flash furnace. The research consists characterization before and calcination, chemical, mineralogical, thermogravimetric, mechanical strength analyses were conducted. results compared with those for commonly used pozzolans, meta...

This article presents the assessment of compressive strength three types lime mortar, one without admixture and remaining two added with metakaolin brick dust. The chemical composition pozzolans was evaluated using X-ray fluorescence (XRF) technique. mortars were subjected to curing conditions: humidity temperature-controlled chamber, accelerated carbonation then they tested at ages 7, 28, 60 9...