Experimental Study on Using Cement Kiln Dust and Plastic Bottle Waste to Improve the Geotechnical Characteristics of Expansive Soils in Sulaimani City, Northern Iraq. jcoeng [Internet]. 2022 Apr. 1 [cited 2024 Apr. 28];28(4):20-38. Available from: https://joe.uobaghdad.edu.iq/index.php/main/article/view/1552