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首页> 外文期刊>セメント·コンクリ-ト論文集 >STUDY ON A TESTING METHOD FOR EVALUATING DURABILITY OF SHORT FIBER REINFORCED CONCRETE BY WET DRY-CYCLE EXPOSURE
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STUDY ON A TESTING METHOD FOR EVALUATING DURABILITY OF SHORT FIBER REINFORCED CONCRETE BY WET DRY-CYCLE EXPOSURE

机译：湿法干法评估短纤维增强混凝土耐久性的测试方法研究

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摘要

This study aims at establishing a standard testing method for evaluating the durability of short fiber reinforced concretes, and presents specifications and experimental results regarding the applicability of a testing method by repeating wet and dry operations. As for the test conditions, a dry is in a dring room of 60+2 deg C for 42 hours and a wet is in water of 20+2 deg C for 6 hours. Changes with time of strength and toughness as for compression and flexure under the test were measured regarding short fiber reinforced concretes using aramido, polyvinyl alcohol, polyethylene and steel fibers in addition to a plain concrete for comparison. As a result, the deterioration of the strength and toughness by repeating wet and dry operations was observed, and the present testing method was shown to be valid to some extent as the accelerated degrading test.
机译：这项研究旨在建立一种评估短纤维增强混凝土耐久性的标准测试方法，并通过重复进行湿法和干法操作，给出有关该测试方法适用性的规格和实验结果。至于测试条件，干燥是在60±2℃的干燥室中进行42小时，而湿润是在20±2℃的水中进行6小时。对于短纤维增强混凝土，除了使用普通混凝土之外，还使用芳族聚酰胺，聚乙烯醇，聚乙烯和钢纤维来测量短纤维增强混凝土的压缩和挠曲强度和韧性随时间的变化。结果，观察到通过重复进行湿和干操作而使强度和韧性降低，并且本发明的测试方法在一定程度上是有效的，作为加速降解测试。

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