This paper aims to present the behavior of concrete containing rice husk-ash (RHA) that were undergone a thermal curing. A particular test method was used to promote an initial thermal curing up to 85ºC to trigger DEF, followed by a specific exposure condition (at 38ºC). Expansion measurements and microstructural analyses were performed to evaluate the level of attack and the integrity of concretes with and without rice husk-ash (RHA). Mechanical properties were assessed in order to monitor damage evolution of generated expansions from DEF over time and up to six months. Concrete tests have indicated that the RHA tested was able to reduce DEF expansions, nonetheless, it was not enough to a complete mitigation and avoid DEF and damages.
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