Author:Kleyn, E; Bergh, A; Botha, PDate:Apr 2009Naturally occurring road building materials, suitable for the higher-quality upper strata of road pavements (base and subbase layers), are systematically being depleted, resulting in the haulage of alternative material over increasing distances ...Read more
Author:Kleyn, EG; Bergh, AODate:Jul 2008Good quality and sub-base material for road pavement construction is becoming increasingly scarce. Dolerite is one of the more abundant natural road building materials in South Africa. Yet, it seems that the road design and construction ...Read more
Author:Gaigher, BDate:1944During 1942 a series of 14 boreholes was put down by the South African Iron and Steel Industrial Corporation on the farms Welstand 34, Rietkuil 27, Diepspruit 25 and Roodepoort 24, in the Bethal District of TransvaalRead more