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Chloride attack study on high-performance self-compacting concretes with shrinking mitigating aids and different water/binder ratios

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<http://hdl.handle.net/10251/101012>
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Abstract

[PT] Retraction may generate cracks in high-performance self-compacting concrete (CAAAD) by decreasing its durability, in order to reduce or eliminate the shrinkage of the concrete, retraction mitigating aids are used. The purpose of this search is to show the behaviour of CAAADs that were produced with shrinking attenuating aids and different water/agglomerating relationships in relation to resistance to attack of chlorides by means of the accelerated chloride penetration test, analysis of the chloride content and analysis of the passerthrough current in the first minutes of the accelerated chloride penetration test. It was concluded that concrete produced with the shrinking attenuating adjuvants did not significantly change the attack resistance properties of the plugs of the concretes studied, it was also found that there are good correlations between the accelerated chloride penetration test and the content of chlorides entering the samples and that it is possible to reduce the time of the accelerated chloride penetration test to a few minutes. For concrete produced with different relationships to/AGL, without adjuvant, the results showed that the lower the relation to AGL the better the performance of concrete in front of the ingress of aggressive agents Dors [ata, R.; Longuini Repette, W.; Gómez, L.; Onghero, L. (2018). Chloride attack study on high-performance self-compacting concretes with shrinking mitigating aids and different water/agglomerating relationships. EN HAC 2018. V Congreso Iberoamericano de hormigón autocompactable y hormigones especiales. Editorial Universitat Politècnica de València. 681-690. https://doi.org/10.4995/HAC2018.2018.6326

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