Research Status of Air-entrained Concrete in Plateau Environment and Analysis of Measures to Improve Freeze-Thaw Durability
The Qinghai-Tibet Plateau,with an average altitude exceeding 4,000 meters,is characterized by its high elevation,low atmospheric pressure,and frequent freeze-thaw cycles.Freeze-thaw damage is one of the primary factors leading to the deterioration of concrete structures in this high-altitude region.This paper reviews the current research on air-entrained concrete in plateau environments,examining the impact of low atmospheric pressure on the performance of air-entraining agents,air content,pore structure,air-void structure in concrete.It also proposes measures to enhance the freeze-thaw durability of concrete under plateau conditions.
PlateauAir-entraining concreteFoam property of AEAAir contentAir-void structurePore structureFreeze-thaw durability
万方数据
维普
