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首页> 外文会议>6th International RILEM Symposium on Performance Testing and Evaluation of Bituminous Materials, (PTEBM'03) Pt.1 Apr 14-16, 2003 Zurich, Switzerland >SHORT- AND LONG-TERM AGEING OF BITUMINOUS BINDERS ― SIMULATION WITH THE RCAT METHOD
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SHORT- AND LONG-TERM AGEING OF BITUMINOUS BINDERS ― SIMULATION WITH THE RCAT METHOD

机译：粘合剂的短期和长期老化-用RCAT方法模拟

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摘要

Both the short-term ageing ("in construction") and long-term ageing ("in service") of the bituminous binder are important factors in the performance of bituminous materials. Short-term ageing can be adequately simulated with the RTFOT method, which has been standardized at the European level. For long-term ageing, BRRC has developed - as an alternative to the less well accepted PAV test - the RCAT (Rotating Cylinder Ageing Test) method, which has aroused much interest over the past few years. In the marketed version of the RCAT apparatus, provision has been made to simulate the two types of ageing. To establish equivalence between ageing times, a systematic comparison between RTFOT and RCAT tests both conducted at 163 ℃ was made with several bituminous binders. The measurements of penetration and ring-and-ball temperature as well as the infrared spectra of the binders have shown that 210-240 min of RCAT ageing approximately correspond to 75 min of RTFOT ageing. As a result, the RCAT apparatus appears to be a very practical device with many possibilities for short- and/or long-term ageing tests on normal or modified binders or even on mastics.
机译：沥青粘合剂的短期老化（“在施工中”）和长期老化（“在使用中”）都是沥青材料性能的重要因素。可以使用欧洲标准的RTFOT方法充分模拟短期老化。对于长期老化，BRRC已经开发了RCAT（旋转汽缸老化测试）方法，作为不太受欢迎的PAV测试的替代方法，这种方法引起了人们的极大兴趣。在RCAT设备的市售版本中，已经提供了模拟两种老化的措施。为了确定老化时间之间的等效性，对两种沥青粘合剂在163℃进行的RTFOT和RCAT测试进行了系统的比较。粘合剂的渗透和环-球温度的测量以及红外光谱显示，RCAT老化210-240分钟大约相当于RTFOT老化75分钟。结果，RCAT设备似乎是一种非常实用的设备，具有对普通或改性粘合剂甚至乳胶进行短期和/或长期老化测试的多种可能性。

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