NON-DESTRUCTIVE TESTING FOR CONCRETE WITH METAKAOLIN CURED AT LOW TEMPERATURE

摘要：

The performance of concrete containing metakaolin (MK), using non-destructive testing, and subjected to low temperature curing of 5℃ is investigated. Cement was partially replaced (by mass) with 0％, 5％, 10％, 15％, 20％ and 30％ MK. The water to binder ratio was maintained at 0.5 for all mixes. Concretes were subjected to water and air curing at 5℃. Ultrasonic pulse velocity measurements were conducted on the specimens. During the first day of hydration, the concrete strength is substantially reduced especially at high MK content. However, the incorporation of up to 20％ MK causes an enhancement in ultrasonic pulse velocity beyond 7 days of curing. The optimum amount of MK was found at around 10％. The ultrasonic pulse velocity for water cured specimens was generally higher than those cured in air.

关键词： concrete curing low temperature metakaolin strength ultrasonic pulse velocity

作者: J. M. Khatib T. Mohammed O. Kayali A. Bougara

作者单位: School of Engineering and the Built Environment, COIN, University of Wolvertiampton,Wolvertiampton, Department of Civil Engineering, University of Asia Pacific, Dhanmondi R/A, Dhaka 120, Bangladesh School of Aerospace, Civil and Mechanical Engineering, University of New South Wales@ADFA, Australia Laboratory of Material Sciences and Environment, University of Hassiba Benbouali Chief, Algeria

会议类型: 国际会议

会议名称: 2009年土木工程结构创新与可持续发展国际会议(The International Symposium on Innovation & Sustainability of Structures in Civil Engineering)

会议地点: 广州

会议语种:英文

页码: 171-175

在线出版日期: 2009-11-28（万方平台首次上网日期，不代表论文的发表时间）