Evatluation of various properties of portland cement at high temperatures utilizing roof tile waste as mineral additives

Abstract

Temperature, Compressive strengthHeat-resistant materials are essential in the building materials industry and play an important role in civil construction in some items requiring heat and fire resistance. Research and development of heat-resistant materials using Portland cement and industrial waste contribute to solving the country's need for heat-resistant materials. The article introduces the use of roof tile waste as a fine mineral additive to improve the properties of Portland cement towards making mortar, heat-resistant concrete for construction works. The shrinkage and compressive strength of the binder at temperatures of 100, 200, 400, 600, 800, and 1000^oC are determined. Thermal Gravimetric analysis and Scanning Electron Microscopy are also shown in this paper. The results show that tile powder with 30% content to replace Portland cement can make a binder working up to 800^oC; the sample has a shrinkage of 1.19% and a residual compressive strength of 53.4%.