The Effects of Maximum Attapulgite Aggregate Size and Steel Fibers Content on Fresh and Some Mechanical Properties of Lightweight Self Compacting Concrete. jcoeng [Internet]. 2020 May 1 [cited 2025 Apr. 26];26(5):172-90. Available from: https://www.joe.uobaghdad.edu.iq/index.php/main/article/view/1011