Sudan university of Science and Technology College of Graduate Studies Effect of Using Basalt and Limestone as Coarse Aggregate in Concrete Mixtures ﺗﺄﺛﯿﺮ اﺳﺘﺨﺪام اﻟﺒﺎزﻟﺖ واﻟﺤﺠﺮ اﻟﺠﯿﺮي ﻛﺮﻛﺎم ﺧﺸﻦ ﻓﻲ اﻟﺨﻠﻄﺎت اﻟﺨﺮﺳﺎﻧﯿﺔA Thesis Submitted in Partial Fulfillment of The Requirements for The Degree of Master of Science (M.Sc) in Civil Engineering (Construction Engineering) by : Montaser Hatim AL ameen Ahmed Supervisor: Dr. Mona Adam Gumma January 2020