Evaluating Some Mechanical Characteristics of Asphalt Mixtures Containing Recycled Concrete Aggregate and Modified by Polyphosphoric Acid. Tikrit j. eng. sci. [Internet]. 2024 Jul. 10 [cited 2026 Sep. 10];31(3):60-71. Available from: https://tj-es.com/ojs/index.php/tjes/article/view/1540