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首页> 外文会议>International Conference Composites in Construction - CCC2001 Oct 10-12, 2001, Porto/Portugal >Investigations on the high scatter of pull out test results from multifilament yarns embedded in a cementitious matrix
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Investigations on the high scatter of pull out test results from multifilament yarns embedded in a cementitious matrix

机译：嵌在水泥基中的复丝纱线的拔出测试结果的高分散性研究

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摘要

This paper shows methods of investigation to examine and detect the causes of the high scatters of pull out test of multi filament yarns out of a concrete matrix. With the help of the so called Confocal Laser Scanning Microscopy (LSM) and the Back Scattering Analysis (SEM) the specimens used for the pull out tests are examined in order to find relations between possible damage mechanisms, failure mechanisms and the maximum pull out load reached during the test. With the help of these analyzing methods, a clear correlation is found and mechanisms are detected which cause the high coefficient of variation of the pull out test results.
机译：本文介绍了调查方法，以检查和检测从混凝土基体中抽出多根长丝纱线的高散布原因。借助所谓的共聚焦激光扫描显微镜（LSM）和反向散射分析（SEM），对用于拉出测试的样本进行了检查，以发现可能的损坏机制，破坏机制与最大拉出载荷之间的关系。在测试过程中达到。在这些分析方法的帮助下，发现了明确的相关性，并检测了导致拔出测试结果的高变异系数的机制。

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