摘要
应用芯样强度推定现场硬化混凝土强度 ,国内外大多数标准都是以直径 10 0mm和 15 0mm芯样强度为基准 ,但常遇到构件尺寸较小或钢筋密集情况 ,不能钻取直径 10 0mm或 15 0mm芯样 ,给检测评定工作带来困难。本试验研究表明 ,小芯样 (直径 70 .5mm)强度与混凝土立方体抗压强度之间具有良好的线性相关性 。
In most standards at home and abroad, the strength of core of 100mm or 150mm in diameter is used to infer the hardended concrete strength in situ. But on conditions that the sizes of members are not large enough or steel bars are dense, the core of 100mm and 150mm in diameter cant't be drilled, thus it is difficult to carry out the test. This test study shows that there is a sound linear interrelation between the small core (7.5mm in diameter)strength and concrete cube strength, so it can be usded to infer the hardened concrete strength in situ.
出处
《水运工程》
北大核心
2002年第3期9-11,共3页
Port & Waterway Engineering
关键词
小芯样
结构
混凝土强度
标准
试验结果
small core
structure
concrete strength
standards
test result
