An Experimental Study on the Chloride Penetration Resistance of Recycled Aggregate Concrete
The degradation of reinforced concrete structures due to chloride penetration has a significant influence on structural durability. In this study, an experiment is conducted to investigate the effects of the aggregate type, mixing method, and admixture type on the chloride penetration resistance of concrete. Based on the experimental results, it is found that, since more pores and microcracks are included in recycled aggregates, the chloride penetration resistance of recycled aggregate concrete is larger than that of natural aggregate concrete. Slag is more efficient than fly ash in increasing the chloride penetration resistance of recycled aggregate concrete. It is also found that the mixing method has a significant influence on the chloride penetration resistance of recycled aggregate concrete. These conclusions can provide theoretical evidence for the design optimization of recycled aggregate concrete properties.
Dongye Sun, Wen-Pei Sung and Ran Chen
J. J. Ding et al., "An Experimental Study on the Chloride Penetration Resistance of Recycled Aggregate Concrete", Applied Mechanics and Materials, Vols. 71-78, pp. 1255-1258, 2011