Analysis of the applicability of construction and demolition waste in the construction activity

The issue addressed in this work refers to the recovery and the improvement of those materials that until a few years ago were considered waste, a burden for the company destined to be disposed of in landfills. We are talking about the so called construction and demolition waste, also known as C&DW. In fact, concrete is one of the most widely used materials in the construction of infrastructure works, but it is also the generator of large volumes associated with the processes of demolition and waste. Climate change and environmental pollution have caused countries to initiate policies whose approach is to reduce these volumes of waste by reusing them or looking for another alternative [4]. Studies conducted in the European Union have been able to establish that the production of construction waste amounts between 221 and 334 million tons/year [1]. Likewise, investigations have been able to determine the feasibility of reusing concrete from the construction as a granular material, demonstrating that if natural aggregate is replaced by recycled material in the correct percentages, concrete can be manufactured without losing its mechanical properties. In general, this work has been developed in three stages: the first consisting of identifying and obtaining the raw material, which will come from the demolition of the work; the second, where this raw material is processed, thus obtaining the aggregate that will be used in the manufacture of concrete; finally, the third stage will consist in designing concrete mixtures to determine the mechanical properties of the concrete in order to establish the viability of its use from its resistances...