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Evaluation of the Behavior of the Bond in High-Strength Concrete

机译:高强度混凝土中粘结性能的评估

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摘要

The Brazilian standard states limit to the ordinary strength concrete. Some foreign standards regulate the use of the high strength concrete, which may not be adopted nationally without consideration of the differences that can exist among the materials. An experimental program consisting of the pull out test and the most traditional test in Brazilian standard in the concrete strength levels (60, 80 and 100 MPa) and three different steel diameters (16.0, 20.0 and 25.0 mm) was carried out. The experimental results were compared with specifications of foreign standards. It occurred a statical analysis of the experimental results trying to identify the influence of the several parameters that affect the behavior of the bond. In the end proposing mathematical models for assessing bond stress of high strength concrete.
机译:巴西标准规定了对普通强度混凝土的限制。一些国外标准规范了高强度混凝土的使用,如果不考虑材料之间可能存在的差异,可能无法在全国范围内采用。进行了包括巴西标准中的拉拔试验和最传统的试验的混凝土强度水平(60、80和100 MPa)和三种不同的钢直径(16.0、20.0和25.0 mm)的试验程序。将实验结果与国外标准进行了比较。它对实验结果进行了静态分析,试图确定影响键性能的几个参数的影响。最后提出了评估高强度混凝土粘结应力的数学模型。

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