Thermal Treatment Influence of Metakaolin on the Concrete Properties
DOI:
https://doi.org/10.47750/pnr.2022.13.S01.220Keywords:
Metakaolin; Pozzolanic Reaction; Thermal Treatment; Compressive Strength; Splitting Tensile Strength; Water Absorption.Abstract
The research seeks to study the thermal treatment influence of Metakaolin (M.K.) on concrete properties by different degrees of thermal treatment. The different degrees of thermal treatment are 0, 300, 500, 700, and 900 °C of Kaolin and select the optimum treatment degree to be more activated. In addition, the research included studying the effect of the M.K. on concrete properties. The M.K. added by weight of cement in percentages of 5%, 10%, 15%, and 20%. The results viewing adding the M.K. to the concrete significantly affects concrete properties compared with the control mix. Additionally, the thermal degree of 700 °C and 5% M.K. content progressed the compressive and splitting tensile strength. At the same time, the highest density was recorded at thermal degree 700 °C and 15% M.K. content. Also, the water absorption was reduced at thermal degree 700 °C and 20% M.K. content.
