Other than portland cement, concrete may include other cementitious components like fly ash, a squander byproduct from coal burning electric powered power crops; floor slag, a byproduct of iron and steel production; and silica fume, a waste byproduct in the manufacture of silicon or ferro-silicon metal. Some of these cementitious https://explorebookmarks.com/story19684022/5-simple-statements-about-concrete-reinforced-pier-explained