Study on the Influence of Freeze-thaw Cycles on the Pore Structure of Hydraulic Concrete
In this paper,transmission imaging and mercury intrusion are used to explore the deterioration damage characteristics of hydraulic concrete pore structures with freeze-thaw cycles.The results show that the freeze-thaw cycle significantly increases the number of harmful pores such as critical pore size and capillary pores,which has a serious impact on the deterioration of the pore structure and the reduction of strength of the surface concrete,and there is a damage gradient from the surface to the inside.In order to ensure the safe operation of hydraulic structures and their overall frost resistance,structural surface coating technology can be adopted.
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