An investigation on alkali-activated Egyptian metakaolin pastes blended with quartz powder subjected to elevated temperatures

In this study, the possibility of using quartz powder (QP) to improve the workability as well as the compressive strength of alkali-activated metakaolin (AAMK) paste before and after exposure to elevated temperatures has been investigated. Metakaolin (MK) was partially replaced with QP at levels ranging from 0% to 30% with an increment of 5%, by weight. After curing, specimens were exposed to different elevated temperatures ranging from 400 °C...