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Carbonation of ternary cementitious concrete systems containing fly ash and silica fume

机译：含粉煤灰和硅粉的三元水泥混凝土体系的碳化

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Carbonation is quite a complex physical negative effect phenomenon on concrete especially in the ones containing ternary blends of Portland Cement, fly ash, and silica fume. Nine selected concrete mixtures were prepared with various water to cementitious materials’ ratios and various cementitious contents. The concrete mixtures were adapted in such a way to have the same workability and air content. The fresh concrete properties were kept near identical in slump, air content, and unit weight. The variation was in the hardened concrete mechanical properties of compression and tension strength. The carbonation phenomenon was studied for these mixes showing at which mixes of ternary cementitious content heavy carbonation attacks maybe produced. The main components of such mixes that do affect the carbonation process with time were presented.
机译：碳化是对混凝土相当复杂的物理负面影响现象，尤其是在含有波特兰水泥，粉煤灰和硅粉三元混合物的混凝土中。选用了9种选定的混凝土混合物，分别采用不同的水与水泥材料的比例和各种水泥含量。使混凝土混合物具有相同的可加工性和空气含量。新鲜混凝土的坍落度，空气含量和单位重量保持几乎相同。变化在于硬化混凝土的抗压强度和抗拉强度。对这些混合物的碳化现象进行了研究，表明在其中可能产生三元胶结含量的混合物，从而产生严重的碳化作用。介绍了这种混合物随时间影响碳化过程的主要成分。

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