While in some countries very high percentages of the construction and demolition (C&D) waste are recycled as construction material, in Colombia, practically all the C&D waste is dumped. Besides, aggregate sources near Bogota, the capital, are almost depleted, so aggregates have to be brought from far quarries. Consequently, reclaiming aggregates from C&D ruble would lead to environmental and economical benefits. Some research projects with limited scope have been done since the mid nineties and their main findings are presented here. As a more systematic and thorough approach is missing, a research project that considers the relevant variables affecting the performance of recycled concrete in Colombia has been initiated at la Escuela Colombiana de Ingenieria (ECI). The objectives, activities and expected results are depicted. A description of a pilot plant for producing recycled concrete in campus that is part of the project is also made.