Durability of Different UHPFRCs, Made from Pozzolan as a Substitute for Portland Cement and Immersed in Two Aggressive Environments of Hydrochloric and Sulfuric Acids

F. A. Medjber, M. Saidi, B. Safi
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Abstract

Abstract The objective of this study is to evaluate the effect of pozzolan on the durability of high-performance fiber concretes in two aggressive environments. For this, prismatic test pieces were made at (0%, 10%, 20%, and 40%) of pozzolan and immersed in two acids, hydrochloric and sulfuric. Then characterizations were carried out, such as the loss of mass, the depth of degradation and the mechanical resistance. The results obtained show that with the substitution rate of pozzolan, the loss of mass and the depth of degradation increase in the two acids, while the mechanical strength increases in hydrochloric acid and decreases in sulfuric acid.
不同UHPFRCs在盐酸和硫酸两种侵蚀环境下的耐久性研究
摘要本研究的目的是评估火山灰对高性能纤维混凝土在两种恶劣环境下的耐久性的影响。为此,柱状试样在(0%、10%、20%和40%)火山灰中制作,并浸泡在盐酸和硫酸两种酸中。然后进行了质量损失、降解深度和机械阻力等表征。结果表明:随着硝烟取代率的增加,两种酸中质量损失和降解深度增加,而在盐酸中机械强度增加,在硫酸中机械强度降低。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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