Apart from portland cement, concrete may well incorporate other cementitious elements such as fly ash, a waste byproduct from coal burning electric energy vegetation; ground slag, a byproduct of iron and steel production; and silica fume, a waste byproduct within the manufacture of silicon or ferro-silicon metal. Some cementitious products https://zionmondb.targetblogs.com/36256796/5-simple-techniques-for-concrete-reinforced-with-rebar