Oybek Oripov1*, Gavhar Narmayeva1, Jamoliddin Kuljonov1, Muqaddas Abdushukurova2. EXPERIMENTAL STUDY AND ANALYSIS ON THE EFFECT OF M40 CONCRETE ON THE DURABILITY STRENGTH PROPERTIES WITH PARTIAL REPLACEMENT OF SAND WITH COPPER SLAG. Spec. Jour. of Inno. Ref. and Dev. [Internet]. 2023 Jan. 31 [cited 2024 Nov. 7];11:144-55. Available from: https://sjird.journalspark.org/index.php/sjird/article/view/527