Rivera, FelipeMartínez, PatriciaCastro, JavierLópez, Mauricio2016-08-102016-08-102015Cement & Concrete Composites, 2015, vol. 63, p. 104-112http://hdl.handle.net/11447/724http://dx.doi.org/10.1016/j.cemconcomp.2015.08.001Fly ash (FA) has been widely used to improve concrete sustainability for many years; however, the amount of FA has been limited by the relatively low cement contents in concrete. In this study, massive volume fly-ash concrete was developed that maximizes the use of FA in concrete through its use as both a cement and aggregate replacement. Concrete containing as much as 728 kg of FA per cubic meter was produced with a compressive strength greater than 30 MPa, a low permeability measured in terms of chloride ion permeability (2300C at 56 d) and electrical resistivity (60 Omega-m at 56 d), and a decreased environmental impact. (C) 2015 Elsevier Ltd. All rights reserved.en-USCold bonded fly ash aggregateHigh volume fly ashPelletizationElectrical resistivityEnvironmentSustainabilityPerformanceDurabilityMixturesArtículo