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首页> 外文会议>Asphalt Rubber 2009 Conference(2009国际橡胶沥青大会） >Comparison of the Properties of Laboratory and Field-Prepared CRM Binders
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Comparison of the Properties of Laboratory and Field-Prepared CRM Binders

机译：实验室和现场准备的CRM粘合剂的性能比较

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摘要

Crumb Rubber Modified binders (CRM binders) have been used for pavement mixtures because of their better performance properties over base asphalt binders. The performance properties of CRM binders are influenced by various factors including the types of both the base binders and the CRM, and the mixing conditions used for producing the CRM binders. In this study, the properties of CRM binders produced in two different conditions, namely in the laboratory and in the field, were compared These properties included viscosity and the performance properties specified by SHRP binder specifications. Two lab produced binders and two field produced binders were tested and compared, respectively. The CRM binders were tested in three states: no aging, Rolling Thin Film Oven (RTFO) aging resides, RTFO+Pressurized Aging Vessel (PAV) aging resides as well, The results of this study indicated that: 1) there is no big significant difference between the viscosities of the CRM binders produced in the two different conditions; 2) the high temperature grades of CRM binders produced in laboratory were one PG grade higher than those produced in the field; 3) the difference of low temperature grades for between the binders produced in laboratory and infield was less than one PG grade.
机译：粒状橡胶改性的粘结剂（CRM粘结剂）已被用于路面混合物，因为它们比基础沥青粘结剂具有更好的性能。 CRM粘合剂的性能受各种因素影响，包括基础粘合剂和CRM的类型以及用于生产CRM粘合剂的混合条件。在这项研究中，比较了在两种不同条件下（即在实验室和现场）生产的CRM粘合剂的性能。这些性能包括粘度和SHRP粘合剂规格指定的性能。分别测试和比较了两种实验室生产的粘合剂和两种现场生产的粘合剂。 CRM粘合剂在以下三种状态下进行了测试：无老化，仍存在滚动薄膜烤箱（RTFO）老化，也存在RTFO +加压老化容器（PAV）老化，该研究的结果表明：1）没有太大的意义在两种不同条件下生产的CRM粘合剂的粘度之间的差异； 2）实验室生产的CRM粘合剂的高温等级比现场生产的PG等级高一个PG等级； 3）实验室和野外生产的粘合剂之间的低温等级差异小于一个PG等级。

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