Study of application of mixed recycled aggregates for pervious concrete and backfilling trenches at Barcelona city
DOI:
https://doi.org/10.3989/ic.15.062Keywords:
Mixed recycled aggregate, porous concrete, applications, material for backfilling, experimental resultsAbstract
This study details two pilot tests carried out within the city of Barcelona, concerning the reuse of CDW in innovative initiatives. The first case study deals with the use of mixed recycled aggregate (MRA) in the production of a pervious concrete to be employed as a draining base for paving. Once the pervious concrete had been characterized within the laboratory, a pilot test was carried out and the concrete’s properties of density, compressive strength, permeability and leached components were determined by test specimens. Permeability was also tested on-site. The second case study deals with an analysis of the debris material obtained from trenches in order to determine its suitability as recycled material for trenches backfilling. The material was validated in accordance to PG3 requirements of modified proctor, CBR, liquid limit, plastic limit and plasticity index. In accordance with the obtained results, the MRA were validated for defined case studies.
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