结构轻盈的骨料混凝土的碳化和氯化物渗透阻力研究进展

索菲 亚·, 亚历 山大
土木工程研究与可持续发展创新机构

摘要

本文综述了结构轻骨料混凝土（SLWAC）的耐久性。讨论了钢筋混凝土的主要运输特性和降解机理，即碳
酸化和氯化物侵蚀，还分析了主要成分参数的影响，例如骨料类型，粘合剂类型和水 /粘合剂比率，以及开裂的影
响。最后，评估了 SLWAC使用寿命预测的当前知识。虽然对 SLWAC耐久性能的了解仍然有限，但在实验室或实际
环境中进行的调查工作表明，SLWAC可以具有与正常重量混凝土更好的耐久性能，特别是当考虑相同的强度水平的
时候。另外，本文强调了浆料质量对轻质骨料特性的重要性。关于 SLWAC的耐久性标准化仍然不足，是当前知识的
主要差距之一。本综述的目的是促进对 SLWAC的耐久性和使用寿命预测的更好理解，从而有助于增强使用此类混凝
土的信心。

关键词

轻质骨料混凝土；耐用性；碳酸化；氯化物渗透

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