ULTRA-HIGH PERFORMANCE CONCRETE (UHPC) WITH SUBSTITUTION OF CEMENTITIOUS MATRIX BY WASTE

The Campo of Gibraltar is one of the most significant industrial regions in Andalucia, generating a significant amount of solid waste that is later taken to landfills. Some of them can be recover in the cementitious matrix manufacture and then reuse and valorize in the civil construction sector. This research is focused on give them a new possibility of handling in Ultra-High Performance Concrete (UHPC) in several application as the rehabilitation of the system maritime, improving and strengthening the port work, as well as the consolidation of the industrial infrastructure of the area or on the maritime land coastline. The efficiency of concrete structures necessarily leads to an improvement in their overall performance not only from a structural point of view but also from a sustainability point of view. The proposed concrete model has the quality of being supported by simple and well-known laws for each of its components. Three different dosages were carried out, an initial standard, the replacement of 10% of petroleum cracking catalysts (FCC) and a third where 5% of FCC and blast furnace slag were replaced by cement.