Mechanical Properties of Modified Metakaolin-Based Geopolymer Concrete Containing Tires Rubber Waste and Reinforced with Recycled Steel Fibers. Tikrit j. eng. sci. [Internet]. 2024 May 1 [cited 2026 Sep. 10];31(2):43-59. Available from: https://tj-es.com/ojs/index.php/tjes/article/view/1383