Performance of Self-flowing Concrete Incorporated with Alumina Silicates Subjected to Elevated Temperature

Abstract

Concrete’s thermal properties are by far complex when compared to other materials as concrete is an amalgamated material whose ingredients have dissimilar properties. The properties of concrete are also dependent on its porosity and moisture. When subjected to temperatures greater than 150 °C, significant changes have been observed with respect to its physical and mechanical properties. The changes include distortion and displacement of elements, cracking, spalling gradually leading to structural degradation and ultimate failure. The present study aims at studying the properties of self-flowing concrete incorporating alumina silicates by varying the molar ratio (6, 8, 10 M) subjected to different levels of elevated temperatures (200, 400, 600 °C) and air cooling regime. Results indicate changes in percentage loss of mass and compressive strength of self-flowing concrete incorporated with alumina silicates thereby indicating better performance of it compared to conventional concrete subjected to elevated temperature.