Alshareef, Ali Najed Talib; Kheeder, Ashgan Bushra; Hassan, Jihad Ali; Supervisor - Elmugdad Ahmed Ali
(Sudan university of Science and technology, 2015-09-01)
Chalk (chalk chips):
It indicates to chemical compounds calcium sulfate dihydrate CaSO4.2H2O. Calcium sulfate presence as white powder and it has several shapes in nature,it has so many construction uses. The aim of the ...