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首页> 外文期刊>International Journal of Electrochemical Science >Electrochemical Behaviour of Galvanized Steel Embedded in Concrete Exposed to Sand Contaminated with NaCl
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Electrochemical Behaviour of Galvanized Steel Embedded in Concrete Exposed to Sand Contaminated with NaCl

机译：NaCl污染的沙子中埋入混凝土中的镀锌钢的电化学行为。

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This research evaluates the corrosion of reinforced concrete, exposed to marine sand, simulating whathappens with the elements of laying of foundations of all concrete structures constructed on coasts ofMexico and the world. In such concrete specimens a steel bar AISI 1018 and Galvanized Steel was2 embedded as reinforcement, the mixed concrete was of ratio w/c=0.45 (fc = 350 kg / cm ), accordingto ACI 211.1, using two type cements CPC 30R and CPC 30R RS. The corrosion rate was evaluatedby electrochemical techniques, corrosion potential Ecorr (ASTM C-876-09) and Linear PolarizationResistance (ASTM-G59). These specimens were exposed in a marine sand contaminated with 0, 1, 2and 3% NaCl, the exposure time was 260 days where, according to the electrochemical results of Ecorrand Icorr, we could determine that the better performance of the specimens was galvanized steel andconcrete made with cement CPC 30R RS, this research demonstrated the importance of developingspecial to elaborated concrete durability in aggressive environment such as is the ground whereuproots all reinforced concrete structures.
机译：这项研究评估了暴露在海砂中的钢筋混凝土的腐蚀情况，模拟了在墨西哥和世界各地建造的所有混凝土结构的地基铺设要素。根据ACI 211.1，使用两种类型的水泥CPC 30R和CPC 30R将AISI 1018钢和镀锌钢2埋入钢筋中，混合后的混凝土比率w / c = 0.45（fc = 350 kg / cm）。 RS。通过电化学技术，腐蚀电位Ecorr（ASTM C-876-09）和线性极化电阻（ASTM-G59）评估腐蚀速率。这些样品被暴露在被0、1、2和3％NaCl污染的海沙中，暴露时间为260天，根据Ecorrand Icorr的电化学结果，我们可以确定，镀锌钢和混凝土的性能更好。该研究用水泥CPC 30R RS制成，证明了在侵蚀性环境（特别是将所有钢筋混凝土结构连根拔起的地面）中开发特殊的混凝土耐久性的重要性。

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