Journal
CEMENT & CONCRETE COMPOSITES
Volume 47, Issue -, Pages 9-18Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.cemconcomp.2013.11.004
Keywords
Service life estimation; Durability; Predictive models; Cement type; Concrete; Carbonation; Chloride exposure; Software
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A significant step forward for a thorough durability design process of reinforced concrete structures is the development of software packages, based on predictive models, for the estimation of concrete strength and service life. Such an attempt, in full compliance with the European Standards for cement and concrete, is presented in this study. Upon defining the concrete mix design, the software calculates the main chemical and volumetric characteristics, as well as the compressive strength, of concrete. By taking into account the environmental conditions where the structure will be exposed, concrete service life is predicted, using fundamental mathematical models (based on reaction engineering principles) that simulate the reinforced concrete deterioration mechanisms leading to corrosion of the embedded reinforcement (caused by either carbonation or chloride ingress). A validation process of the yielded results is also presented, and the effectiveness of the simulation tool in designing for durability is illustrated. The goal of this study is to promote wider acceptance in achieving feasible and durable solutions to structural concrete design problems. (C) 2013 Elsevier Ltd. All rights reserved.
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