Deconstruction of Bridges - New Recycled Aggregates for Granular Layers
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Bibliographic Details
| Author(s): |
Fernando Martinho
Bruno Medeiros Gonçalo Matos |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Conference: Assessment, Upgrading and Refurbishment of Infrastructures, Rotterdam, The Netherlands, 6-8 May 2013 | ||||
| Published in: | IABSE Conference, Rotterdam, May 2013 | ||||
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| Page(s): | 466-467 | ||||
| Total no. of pages: | 8 | ||||
| Year: | 2013 | ||||
| DOI: | 10.2749/222137813806521027 | ||||
| Abstract: |
This article describes the recovery process of one of the "wastes" produced in a big motorway construction project located in Portugal. This by-product was the Construction and Demolition Waste (CDW) and was obtained by crushing the concrete resulted from the demolition of five bridges (all of them were made with pre-stressed concrete) in the existing national road (constructed 20 years ago). In order to fulfil all the parameters required in the technical specifications the crushed material was combined with soils (with some plasticity) from the excavation inside the stretch under reconstruction. The results obtained with this innovative "eco-Aggregate" exceeded the expected specifications and met two of the most important objectives for sustainability: the reuse of available resources and a reduction of the energy consumption. |
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| Keywords: |
demolition recycling deconstruction pavements capping layers eco-aggregates
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