Study of the Thermal Durability of Refractory Mortar Prepared from Local Clay Mixed with Different Percentage of Silica. Iraqi Journal of Science [Internet]. 2024 Jan. 26 [cited 2024 May 17];54(4Appendix):1096-101. Available from: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/12428