On the Testing Strength Curve of Clay and Fly Ash Lightweight Aggregate Concrete by Rebound Method

摘要：

Testing strength curve of 1400~1900 density grade and LC15~LC50 strength grade lightweight aggregate concrete by rebound method was studied systematically. Results show that,adopting the Chinese national unified testing strength curve, specified by JGJ/T 23-2001 of Technical Specification for Detection of Concrete Compressive Strength by Rebound Method,to detect the lightweight aggregate concrete strength,the strength scaled value obtained is higher,which would reduce the structure assurance coefficient. The special testing strength curve of 1400-1900 density grade and LC15-LC50 strength grade lightweight aggregate concrete were built,and the computed mean relative error and relative standard error are less than 12.0％ and 14.0％ respectively,meet the error requirement of special curve that specified by JGJ/T 23-2001 of Technical Specification for Detection of Concrete Compressive Strength by Rebound Method.

关键词： Lightweight aggregate concrete Compressive strength curve Rebound method

作者: GAO Li-xiong KONG Li-juan XU Lei

作者单位: School of Materials Science and Engineering,Shijiazhuang Tiedao University,Shijiazhuang 050043,China

会议类型: 国际会议

会议名称: Frist Annual Meeting on Testing and Evaluation of Inorganic Materials(第一届全国无机材料测试与评价学术年会)

会议地点: 南昌

会议语种:英文

页码: 545-548

在线出版日期: 2010-04-28（万方平台首次上网日期，不代表论文的发表时间）