STRENGTH, CHLORIDE MIGRATION, AND WATER PERMEABILITY OF CONCRETE MADE FROM INDUSTRIAL WASTES

Abstract

This research aimed to study concrete properties such as compressive strength,
chloride migration, and water permeability of concrete made from industrial
wastes. The wastes were Gground calcium carbide residue (CCR) and ground
fly ash (FA) and were mixed together for use as a binder. Recycled aggregates
were used in place of natural aggregates to produce concrete (CCR-FA
concrete). Properties of CCR-FA concretes were evaluated and compared with
the conventional concrete made from Portland cement and natural aggregates
(CON concrete). The results showed that the use of CCR-FA binder in recycled
aggregate concrete did not change the characteristic compressive strength of
concrete. Compressive strength of CCR-FA concretes was similar to that of
CON concrete. The chloride migration and water permeability of CCR-FA
concretes were the same or lower than that of CON concrete. These results
indicated that CCR-FA concretes could be used as a new environmental
friendly concrete because these concretes can reduce environmental problems
by using the industrial wastes as raw material to produce concrete.