Abstract

The pore structure and low-temperature dilataion behaviour of a traditional hydrated Portland cement paste and a special cement paste of high initial strength were investigated. The aim of the investigation was to demonstrate the role of the cement type in developing the pore structure and frost dilatation during the hydration process. The lower porosity and the higher strength of the special hydrated cement paste resulted in smaller frost dilatation effects in comparison with those of the traditional cement paste in the early stage of hydration.

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