Research on the freeze-thaw relation of hydraulic structure concrete under laboratory and natural conditions

摘要

This paper focuses on the hydraulic structure concrete of Songtun Reservoir in Jilin and its vulnerability to freeze-thaw damage that leads to a decline in structural durability. Through field sampling and testing, a relationship is established between freeze-thaw cycles of the hydraulic concrete in an actual environment and in the laboratory. The test results facilitate the prediction of the number of freeze-thaw cycles that the concrete will be exposed to in an actual environment, through laboratory tests of freeze-thaw cycle parameters. This understanding would enable people to predict the number of cycles of concrete in actual engineering environment through laboratory test freeze-thaw cycle parameters and propose reasonable management operation plan.