Continuously Reinforced Concrete Pavement in the A-7 Mediterranean Motorway of Spain

Paper by HIDALGO PEÑAS from ISCR 11th 2010 Seville Spain

Long-life concrete pavements require less frequent repair, rehabilitation, and reconstruction, and therefore contribute to improving highway safety and mitigating congestion. Experience with these pavements, including examples of concrete pavements that have remained in service for more than 35 years. CRCP set out to offer the market a new alternative in the use of comfortable concrete pavements, with very few contraction joints, where it is possible to predict the design stresses (loads, shrinkage, etc.), and monitor cracking as in any other reinforced concrete structure and which has the advantages of safety, cost and compatibility with existing asphalt mix or concrete pavement in poor condition. Nowadays, the methodologies of life cycle cost analysis are already applied in the most advanced countries as potent tools in the selection of the type of pavement, endeavouring to reduce pollutant emissions. This paper presents the lessons learned from the performance CRCP in the A-7. A motorway section, about 10,5 km long, has been constructed in the South of Spain, as a part of the so-called Mediterranean Motorway. The Spanish Ministry of Development and Ginprosa Engineering have looked for execute the work with high parameters of quality, investigating and innovating in this type of pavements.

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