Damage Evolution Law of LNG Tank Concrete Subjected to Cryogenic-Temperature Freeze-Thaw Cycles
XIE Jian
SI Jiawei
KANG Ercong
SUN Yadan
Abstract：To clarify the evolution law of cryogenic-temperature freeze-thaw damage of liquefied natural gas(LNG)tank concrete under leakage condition,the cryogenic-temperature freeze-thaw tests on C50 concrete were conducted,and compared with the rapid freeze-thaw test results.Relative dynamic elastic modulus was adopted to evaluate the damage accumulation of LNG tank concrete.The results indicate that the rapid freeze-thaw test cannot truly reflect the damage evolution law of LNG tank concrete under cryogenic-temperature freeze-thaw conditions.Based on the Weibull distribution theory,the damage equivalent correlation between the laboratory-simulated freeze-thaw cycle conditions and the actual LNG tank leakage conditions is established,which can lay a theoretical foundation for the subsequent related research.
Keywords：concreteLNG tankcryogenic-temperaturefreeze-thaw damagefrost resistance
Publication Date：2025-01-27
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 58-64 )