The collapse of the Champlain Towers South condominium in South Florida shocked the world. Many families lost loved ones or are still holding their breath. The question remains: what was the cause of this catastrophic failure? Cementitious materials — not least their reinforcements — are prone to aerobic oxidation, followed by chloride and sulfate attack. These processes jeopardize structures, particularly those exposed to air and seawater.

中文翻译：

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环境与混凝土之间的古老战争

南佛罗里达州 Champlain Towers South 公寓的倒塌震惊了世界。许多家庭失去了亲人或仍在屏住呼吸。问题仍然存在：这场灾难性失败的原因是什么？胶凝材料——尤其是它们的增强材料——容易发生有氧氧化，随后受到氯化物和硫酸盐的侵蚀。这些过程会危害结构，尤其是那些暴露在空气和海水中的结构。