The service-life of steel-reinforced concrete structures is primarily determined by the ability of the concrete cover to resist chloride ingress. With limited literature available on the ingress of chloride into alkali-activated slags (AAS) under service conditions, it is critical that this is described by appropriate models. This paper describes an interactive software framework to relate chloride ingress into AAS with the chemistry of the concrete cover, by considering the chloride binding capacity and porosity of the binder as a function of time, based on thermodynamic calculations of the phase assemblage as a function of slag and activator composition. This provides a major step towards developing the ability to predict the ingress of chlorides in alkali-activated concretes from a sound theoretical basis, which is essential in providing confidence in the durability of these materials in essential infrastructure applications.

中文翻译：

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模拟碱活化炉渣中的氯离子迁移

钢筋混凝土结构的使用寿命主要取决于混凝土保护层抵抗氯化物侵入的能力。由于关于使用条件下氯化物进入碱活化炉渣 (AAS) 的文献有限，因此通过适当的模型来描述这一点至关重要。本文描述了一个交互式软件框架，将氯化物进入 AAS 与混凝土保护层的化学联系起来，通过考虑作为时间函数的粘合剂的氯化物结合能力和孔隙率，基于相组合的热力学计算作为渣和活化剂组成。这为从可靠的理论基础发展预测碱活化混凝土中氯化物进入的能力迈出了重要一步，