sub base of a highway

CLAY CONTAMINATION IN CRUSHED ROCK HIGHWAY SUB . CLAY CONTAMINATION IN CRUSHED ROCK HIGHWAY SUB-BASES. Although problems with clay contamination of sub-bases have been widely recognised for many years it is clear ... CLAY CONTAMINATION IN CRUSHED ROCK HIGHWAY SUB . CLAY CONTAMINATION IN CRUSHED ROCK HIGHWAY SUB-BASES. Although problems with clay contamination of sub-bases have been widely recognised for many years it is clear ... Typical Cross Section of Highways Roadways - About Civil Typical Cross Section of Highways Roadways. By: ... Highway Cross Section ... To prevent entry of surface water into the sub grade soil through pavement. Road Base And Subbase Material Requirement - bdca Construction of Highway Base and Subbase Layers ... .2 Sub-base – where required, the layer of material provided between the sub- grade and the base course. .3 ...    Read More