Influence of Incorporating Recycled Aggregate on Carbonation Performance of Recycled Concrete
Recycled concrete is a kind of green and new material. With the application of construction, more research should be carried on its carbonization performance, not only focusing on its mechanical properties. Recycled concretes with different W/C (0.45、0.55 and 0.65) and recycled aggregate mix proportions (0、30%、50%、70%and 100%) are made to test their carbonation depth. The results show that water-cement ratio and recycled aggregate mix proportions have interactive influence on carbonization performance of recycled concrete. Influence of recycled aggregate on carbonation depth depends on two conflicting aspects: one is beneficial effect due to high water absorption; another is harmful effect caused by damage structure. A new model of RAC carbonation depth is suggested based on the study.
Jimmy (C.M.) Kao, Wen-Pei Sung and Ran Chen
Y. Huang et al., "Influence of Incorporating Recycled Aggregate on Carbonation Performance of Recycled Concrete", Applied Mechanics and Materials, Vols. 193-194, pp. 882-886, 2012