Properties of concrete made from industrial wastes containing calcium carbide
residue palm oil fuel ash rice husk-bark ash and recycled aggregates
Type Of :
Academic Manuscript
Type :
Civil Engineering
This concrete was made by using several industrial wastes in both binder and aggregates. Calcium
carbide residue (CCR) mixed separately with palm oil fuel ash (PA) and rice husk-bark ash (RA), and was used as a
binder instead of Portland cement in the concrete mixture. Furthermore, recycled aggregates were fully replaced
natural aggregates in order to cast concrete specimens (CCR-PA and CCR-RA concretes). Concrete properties
namely compressive strength, chloride migration, and water permeability of CCR-PA and CCR-RA concretes were
evaluated and compared with the conventional concrete (CON concrete). The results indicated that CCR-PA and
CCR-RA binders could be used as a new cementitious material in recycled aggregate concrete, even though the
CCR-PA and CCR-RA binders contained no Portland cement. The characteristic compressive strength of CCR-PA
and CCR-RA concretes developed similar to CON concrete. Moreover, CCR-PA and CCR-RA binders in the
mixtures were effectively improving the chloride migration and water permeability of recycled aggregate concretes.
These results also suggested that CCR-PA and CCR-RA concretes can be used as a new environmental friendly
concrete because of these concretes can reduce as much as CO2 emissions and environmental problems.
Date01/07/2019
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