Sentences with phrase «substitute for cement»

For those not aware, fly - ash is a biproduct of coal mining that is used as a substitute for cement in concrete mixes.

Not exact matches

Environmentally friendly modern concretes already include volcanic ash or fly ash from coal - burning power plants as partial substitutes for Portland cement, with good results.

For example, cement manufacturers can use either blast furnace slag from steel mills or pozzolans — natural or manufactured reactive materials that increase the long - term strength of concrete — as substitutes for other, more traditional materiaFor example, cement manufacturers can use either blast furnace slag from steel mills or pozzolans — natural or manufactured reactive materials that increase the long - term strength of concrete — as substitutes for other, more traditional materiafor other, more traditional materials.

The reproductions are made from pure compressed fuel ash: a particulate byproduct of coal refinement, which is utilized as a filler and substitute material for all manner of construction and consumer purposes due to its light weight and inherent cementing properties when molded with water and pressure.