首页> 外文会议>Annual conference of the Canadian Society for Civil Engineering >Freeze-Thaw Durability Flow Chart Model for Concrete Infrastructure in Canada
【24h】

Freeze-Thaw Durability Flow Chart Model for Concrete Infrastructure in Canada

机译:加拿大混凝土基础设施的冻融耐久性流程图模型

获取原文
获取外文期刊封面目录资料

摘要

Freeze-thaw cycle is a major problem for the extended service life of a concrete structure in Canada. Variable weather and changed climatic condition is worsening the situation. This paper focuses on the effects of freeze-thaw cycles in concrete structures along with different loading conditions on pavements, sidewalks, bridges, roofs and other exposed structures. The study area considered here is the Okanagan Valley in British Columbia, Canada. Statistics indicate interesting results in terms of freezing-thawing cycle pattern in the winter season. Different types of concrete mix design have been considered and their durability against freeze-thaw cycles has been studied. Finally, a flow chart has been presented in predicting the susceptibility of freeze-thaw scenarios in terms of different cycles of freeze-thaw, varying loading conditions, and concrete type. In this paper the factors that affect the susceptibility of concrete due to freeze-thaw cycling is discussed. This paper focuses on concrete in mild continental Canadian regions in combination with factors including: (1) the concrete type, (2) application, (3) presence of salts, and (4) the type of loading. The flow chart has been assembled for the purpose of referencing and predicting the susceptibility of concrete designs to freeze-thaw degradation.
机译:在加拿大,冻融循环是延长混凝土结构使用寿命的主要问题。天气多变和气候条件的变化使情况恶化。本文重点研究混凝土结构中的冻融循环以及路面,人行道,桥梁,屋顶和其他裸露结构上不同荷载条件下的影响。这里考虑的研究区域是加拿大不列颠哥伦比亚省的欧肯娜根山谷。统计数据表明,冬季冻融循环方式有趣。已经考虑了不同类型的混凝土配合料设计,并研究了其抗冻融循环的耐久性。最后,根据不同的冻融周期,变化的荷载条件和混凝土类型,给出了预测冻融情景敏感性的流程图。本文讨论了由于冻融循环而影响混凝土敏感性的因素。本文主要针对加拿大温和大陆地区的混凝土,并综合考虑以下因素:(1)混凝土类型,(2)应用,(3)盐的存在和(4)荷载类型。组装流程图是为了参考和预测混凝土设计对冻融降解的敏感性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号