Nowadays, governments all over the world are very worried about environment and consequently about environmental policies;within the actuations assumed, it is given much importance to the reuse, recycling and valorization of wastes, this way decrease the amount of raw materials for the manufacture of new products, the reduction in fuels, the gasses emissions to the atmosphere and of course, the amount of wastes accumulated.Construction sector has always been considered as disrespectful with the environment;therefore a lot of researchers are trying to change this trend, making an effort for reaching a more sustainable sector using wastes in all the process.One of these wastes that is pretended to introduce in the life cycle of the materials in the construction sector are the construction and demolition wastes (C&DW), that are an important flow in all the world and there are low ratios of recycling.