Author:Rampersad, Ashiel; George, Theresa B; Mokoena, Refiloe; Mgangira, Martin B; Gräbe, PJDate:Jul 2018The contamination of railway ballast (referred to as ballast fouling) is commonly caused by ballast particle degradation, external debris fouling due to surface spillage and clay fouling due to subgrade pumping. Intrusion of these fines in ...Read more
Author:Henrico, S; Coetzee, S; Cooper, Antony KDate:Feb 2020The study of terrain and all its related elements and facets are of crucial importance to the military. Lodi, Smit, and Ayirebi agreed with this statement and added that the importance of terrain was recognised by military leaders more than ...Read more