Water Sorptivity of Heat-Cured Concrete for Bridge Structures
Water Sorptivity of Heat-Cured Concrete for Bridge Structures
复制标题
DOI：
10.14359/6092
复制
发表时间：
1997-08
期刊：
影响因子：
--
通讯作者：
D. Ho;G. Chirgwin;S. Mak
中科院分区：
文献类型：
--
作者：
D. Ho;G. Chirgwin;S. Mak
基于性能的规范越来越多地用于补充传统的规范，以提高桥梁等主要基础设施资产的使用寿命性能。混凝土的吸水性与近表层混凝土的水分传输性能有关，最近已被作为桥梁建设混凝土的性能指标试用。虽然在正常条件下养护的混凝土的吸水性数据是可用的，但那些受到热养护的混凝土的吸水性数据还没有广泛使用。考虑到热固化预制结构元件经常用于桥梁施工，这一点尤其重要。本文讨论了吸水性的概念，其采用在新南威尔士州的桥梁规范，和性能的热固化混凝土，可能会被用于桥梁建设。
Performance-based specifications are increasingly used to complement traditional prescriptive specifications in an effort to improve service life performance of major infrastructure assets such as bridges. The water sorptivity of concrete, which relates to the moisture transport properties of near-surface concrete, has recently been adopted for trial application as a performance specification of concrete for bridge construction. While data on water sorptivity of concretes cured under normal conditions are available, those of concrete subjected to heat curing are not yet widely available. This is particularly pertinent given that heat-cured precast structural elements are frequently used in bridge construction. This paper discusses the water sorptivity concept, its adoption in bridge specifications in New South Wales, and the performance of heat-cured concretes that could potentially be used in bridge construction.