摘要
应用于液化天然气(LNG)低温储藏的混凝土在超低温环境下的性能与常温状态时的性能存在较大差异。基于此原因,本综述总结了国内外超低温环境下和低温冻融后的混凝土各种性能研究,论述了混凝土在超低温环境下和低温冻融后性能变化机理,并指出含水量和环境温度对混凝土在超低温下的性能至关重要。阐述并指出了目前超低温环境混凝土的应用进展和急需解决的问题。
Many properties of concrete used in storing liquefied natural gas at very low temperature were different from at normal temperature. Based on this, the properties of concrete at very low temperature and after freezing-thawing were summarized.It was discussed to the mechanism of property changes at the both situations and proposed that moisture content and environment temperature were crucial to concrete performance at very low temperature.Application progress of concrete at very low temperature and many problems to be solved were mentioned.
出处
《混凝土》
CAS
CSCD
北大核心
2012年第12期27-29,共3页
Concrete
关键词
超低温
混凝土
力学性能
热变形
冻融
very low temperature
concrete
mechanical property
thermal deformation
freezing-thawing
