Reductions of CO₂ emissions associated with Portland cement production represent currently the main challenge for the cement industry. A promising approach is to substitute the traditional hydration of cement by carbonation of cement clinker for the hardening of the material in concrete production. This work is a tailor-made experimental approach to explore the mechanisms of Portland clinker carbonation under wet conditions. The carbonation is found to be fast at the beginning of the reaction, provided enough CO₂ is present in the system. Particularly, the calcium silicate phases react rapidly, where the kinetics is explained by the high undersaturation of these phases. Furthermore, the carbonation reaction can be divided into three stages when the reaction is limited by the different mechanisms: precipitation of products or dissolution of clinker or CO₂. The main carbonation products are calcium carbonate and amorphous alumina silica gel. These phases precipitate in a different locations forming a special microstructural pattern.

减少与波特兰水泥生产相关的CO ₂排放量目前是水泥行业的主要挑战。一种有前途的方法是通过水泥熟料的碳化来代替传统的水泥水合来硬化混凝土生产中的材料。这项工作是量身定制的实验方法，旨在探索在湿润条件下波特兰熟料碳化的机理。如果有足够的CO ₂，发现碳酸在反应开始时很快。存在于系统中。特别地，硅酸钙相反应迅速，其中动力学由这些相的高度不饱和来解释。此外，当反应受不同机理限制时，碳酸化反应可分为三个阶段：产物沉淀或熟料或CO ₂溶解。主要的碳酸化产物是碳酸钙和无定形氧化铝硅胶。这些相在不同的位置沉淀，形成特殊的微结构图案。