22-06-2010, 08:58 PM
More details about green concrete can be found in these pdf's:
http://icjonlineviews/POV_KH_Obla.pdf
http://scribddoc/7281516/Green-Concrete
http://icjonlineviews/POV_KH_Obla.pdf
http://scribddoc/7281516/Green-Concrete