Experimental Study on the Carbonation and the Frost Resistance of Recycled Fine Aggregate Concrete

Abstract

This paper discribes the influence of properties of recycled fine aggregate on carbonation and frost resistance of recycled fine aggregate concrete. According to the results of experiments, the rate of carbonation is fast with the percentage of water absorption of the recycled fine aggregate increase. When the water absorption of recycled fine aggregate is under about 7%, the frost resistance can be improved by using the coarse aggregate of good quality, and by entraining the appropriate air volume.