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首页> 外文会议>International Woodcoatings Congress >Development of Test Apparatus for Service Life Prediction of Sealant Formulations and Evaluation of Data from 18 Months of Outdoor Weathering
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Development of Test Apparatus for Service Life Prediction of Sealant Formulations and Evaluation of Data from 18 Months of Outdoor Weathering

机译：用于使用寿命预测的密封剂配方使用寿命预测的测试装置以及从18个月的户外风化中的数据评估

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Sealants(caulking compounds)are often used to prevent water intrusion through the exterior envelope of structures.To develop meaningful accelerated tests for predicting sealant service life,their performance during outdoor exposure was measured.The development of an apparatus to fatigue sealants during outdoor exposure was previously reported(Williams et al.,2002).We now report the results from 18 months outdoor exposure.Methods for data analysis and the advantages and disadvantages of the test protocol are discussed.To improve the cyclic fatigue test,a new motor-driven test apparatus was constructed.This new apparatus can fatigue materials with input from thermal-or moisture-driven cyclic movement.In addition to measuring the material response during weathering,various nondestructive experiments can be done during the exposure(load-deflection at various strain-rates/temperatures or stress relaxation experiments).Data from the two types of apparatus will be presented and will show how the failure of individual specimens could be linked to an exact time and weather event.
机译：密封剂（嵌缝胶）经常被用来防止水侵入通过structures.To的外部包络开发有意义加速试验用于预测密封剂的使用寿命，在户外曝光时它们的性能是户外暴露过程中疲劳密封剂的装置的measured.The发展被以前报道（Williams等，2002）。我们现在举报了18个月的户外曝光结果。讨论了数据分析的方法和测试方案的优点和缺点。为改善循环疲劳试验，新的电动机驱动测试装置是constructed.This新装置会疲劳与来自热或水分驱动的环状movement.In加法输入材料测量风化过程中该材料的反应，各种非破坏性实验可以曝光（负荷 - 挠曲在不同应变期间完成速率/温度或应力松弛实验）。来自两种类型的装置的数据将被呈现并显示如何单个标本的失败可能与确切的时间和天气事件相关联。

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