Study on the curve of lightweight aggregate concrete compressive strength by rebound method

被引：0

作者：

Gao Lixiong ^{[1
]}

Kong Lijuan ^{[1
]}

Du Xuegang ^{[1
]}

机构：

[1] Shijiazhuang TieDao Univ, Sch Mat Sci & Engn, Shijiazhuang 050043, Peoples R China

来源：

ECOLOGICAL ENVIRONMENT AND TECHNOLOGY OF CONCRETE | 2011年 / 477卷

关键词：

lightweight aggregate concrete; compressive strength; rebound method; testing strength curve;

D O I：

10.4028/www.scientific.net/KEM.477.268

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Testing strength curve of 1400 similar to 1900 density 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 similar to 1900 density grade and LC15 similar to 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.

引用

页码：268 / 273

页数：6