Deformation properties of recycled aggregate concrete

The use of recycled aggregate (RA) from construction waste presents some important environmental and construction engineering issues that need resolution. Using RA in concrete opens possibilities in the ways in which recycled materials can be used for structural applications; positively, it may be an important breakthrough towards sustainable development. The utilisation of recycled aggregate is an effective solution to the problem of possessing excess waste materials while simultaneously maintaining satisfactory concrete quality. The utilisation of waste construction materials should be related to the application of quality guarantee systems to achieve suitable product properties. A complete understanding of the characteristics of new materials is, therefore, extremely important so that its potential in applications can be thoroughly studied. This paper investigates the deformation of recycled aggregate concrete (RAC). The experimental work on RAC from different mix proportions, including replacement ratios of RA 0%, 30% and 100% and water-to-cement ratios at 0.35, 0.45 and 0.6 are investigated on deformation properties of RAC: shrinkage and creep. All mix proportions are fixed the aggregate-to-cement ratio at 4.50. Further research directions are also discussed