Materiales de Construcción, Vol 64, No 313 (2014)

Durability of recycled aggregate concrete designed with the Equivalent Mortar Volume (EMV) method: Validation under the Spanish context and its adaptation to Bolomey methodology


https://doi.org/10.3989/mc.2013.00913

C. Jiménez
Universidad Politécnica de Cataluña, Spain

M. Barra
Universidad Politécnica de Cataluña, Spain

S. Valls
Universidad Politécnica de Cataluña, Spain

D. Aponte
Universidad Politécnica de Cataluña, Spain

E. Vázquez
Universidad Politécnica de Cataluña, Spain

Abstract


Some durability properties are analyzed in concretes made with a novel method for recycled aggregates concrete (RAC) proportioning, in order to validate it under the Spanish context. Two types of concrete mixes were elaborated; one following the guidelines of the named method, and other based on an adaptation of the method to Bolomey methodology. Two types of recycled concrete aggregates (RCA) were used. RCA replacement for natural aggregates (NA) ranged from 20% to 100%. The 20% was chosen in order to comply with Spanish recommendations. Water penetration under pressure, water absorption and chlorides attack were the studied properties. It is verified that the new method and the developed adaptation results in concrete mixes of better or similar properties to those of the natural aggregates concrete (NAC) and the conventional RAC, saving important amounts of cement.

Keywords


Portland Cement; Durability; Sustainability; Recycled Aggregates; Recycled Concrete

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