SUMMARY The most known model is that published by Tuutti with two phases in time: corrosion initiation and propagation. In this model the corrosion initiation phase has been frequently considered, but the corrosion propagation phase has been seldom addressed. In the present work the propagation phase is generalised to not being only with a constant corrosion rate, but also with the alternatives of presenting non-constant corrosion rates through a sequence of consecutive periods of constant corrosion rate (bi-linear behaviour). The other most frequent attacks are alkali-silica reaction or sulphate attack, acid or leaching by pure waters and frost attack. In the present paper it is proposed as an inference from the corrosion model that they can be modelled through the same linear pattern of an initiation and a propagation period. Their rates of deterioration can be constant or the rates can be changing as a sequence of shorter linear periods.

中文翻译：

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混凝土劣化过程的线性传播模型

总结 最著名的模型是 Tuutti 发布的模型，它有两个时间阶段：腐蚀开始和扩展。在该模型中，经常考虑腐蚀开始阶段，但很少涉及腐蚀传播阶段。在目前的工作中，传播阶段被概括为不仅具有恒定的腐蚀速率，而且还具有通过一系列连续的恒定腐蚀速率（双线性行为）呈现非恒定腐蚀速率的替代方案。其他最常见的侵蚀是碱硅反应或硫酸盐侵蚀、酸或纯水浸出和霜冻侵蚀。在本文中，作为腐蚀模型的推论，它们可以通过起始和传播期的相同线性模式进行建模。