Aside from portland cement, concrete may well comprise other cementitious products including fly ash, a squander byproduct from coal burning electric powered power crops; floor slag, a byproduct of iron and steel manufacturing; and silica fume, a waste byproduct in the manufacture of silicon or ferro-silicon metallic. Some cementitious products https://wordpress-website-service15925.theblogfairy.com/34889661/concrete-reinforced-wall-an-overview