冻融破坏(Freeze-thawdamage) Freeze-thawdamage Incoldclimates,concretepavement,revetment,bridgedeckand railingsbecausefreeze-thawdamageoccurred,whicharecostly torepairandreconstruction,ithasbecomeoneofthemain problemsofdurabilityofconcrete. Leadtothehardeningofconcretecauseaboutfreeze-thaw failureandthemicrostructure...
Recycled aggregate concrete (RAC) structures situated in cold regions are required to withstand the combined effects of mechanical load and environmental f... Kangshen Fu,Yuan Sang,Canhui Chen,... - Construction & Building Materials 被引量: 0发表: 2024年 Impact of sustained load on damage chara...
The deflection predicted from CSA code and ACI guidelines are very close to those obtained from experimental tests; however, the CSA code overestimates the deflection at the service load. The applied thermal cycles have no big influence on the behaviour before shear failure of concrete slabs ...
Freezing–thawing damage of rocks is an irreversible deformation process caused by this cyclic frost heaving pressure in alternate cold and warm climate, which may cause a rapid strength degradation and it is harmful to rock engineering and buildings. Many researchers studied the change of physical ...
Freeze Proof & Winterize: A Winterizing Guide: How to Freeze-Protect Water Supply Piping, Drain Piping, Water Pumps, Tanks, Heaters; how to prevent frozen pipe damage in buildings, how to shut down systems, where to add heat, when to leave heat on or off
The deflection predicted from CSA code and ACI guidelines are very close to those obtained from experimental tests; however, the CSA code overestimates the deflection at the service load. The applied thermal cycles have no big influence on the behaviour before shear failure of concrete slabs ...
The freeze-thaw damage extent of concrete exposed to natural environmental was converted into rapid freeze-thaw cycles, then the freeze-thaw durability life for the main concrete components of the bridge were calculated. This prediction method combines the accuracy of indoor experiment and rapidity of...
Monitoring concrete slabs exposed to freezing in the presence of deionized water and in the presence of 3% sodium chloride solution, the study measures surface damage and relative dynamic modulus of elasticity. Additionally, it assesses internal damage through monitoring of relative dynamic ...
The compressive strength and the accelerated chloride penetration (ASTM C1202) were measured on molded samples and cores from the outdoor slabs. Accelerated laboratory freeze-thaw tests (ASTM C666) and deicing-salt scaling tests (ASTM C 672) were also performed...
CONCRETE fatigueFREEZE-thaw cyclesFATIGUE cracksEROSIONCYCLIC fatigueMATERIAL fatigueCONSTRUCTION slabsIRON & steel platesA bridge structure is subjected to different external loads and environmental effects during its operation, which results in different types and degrees of damage to the structure during ...