• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>Materials >Effects of Composite Warm Mix Additive (CAR) on the Physical and Rheological Performance of Bitumen and the Pavement Performance of Its Concrete
【2h】

Effects of Composite Warm Mix Additive (CAR) on the Physical and Rheological Performance of Bitumen and the Pavement Performance of Its Concrete

机译：复合温拌剂（CAR）对沥青物理流变性能及混凝土路面性能的影响

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Warm mix asphalt received increasing attention in recent years, and this technology aims to increase the fluidity of bitumen in the process of mixing and construction. To characterize the physical and rheological properties of bitumen and the pavement performance of bituminous mixtures, it was modified by a composite additive Rediset. Rediset consists of both the cationic surfactants and organic additive-based rheology modifiers. Commonly used materials such as Pen 60/80 bitumen and bituminous concrete (AC-20) were selected. The results show that Rediset can improve the penetration and softening point of the bitumen, making the bitumen stiffer and harder. All Rediset-modified bituminous concretes are in the same low-temperature performance grade (PG) as the bitumen without Rediset. Although Rediset can decrease the rutting and crack resistance of Rediset-modified bituminous concrete, all the Rediset-modified bituminous concrete with less than 2% Rediset still satisfied the requirement of the maximum bending strain being higher than 2000 με, and the dynamic stability of Rediset-modified bituminous concrete with 3% Rediset was still higher than 1000 cycles/mm. The cationic surfactants in the Rediset can play the role of an anti-stripping agent and improve the adhesion between the interfaces of the aggregate and bituminous binder, which enhances the moisture resistance of Rediset-modified bituminous concrete.
机译：近年来，热拌沥青受到越来越多的关注，该技术旨在在拌和和施工过程中增加沥青的流动性。为了表征沥青的物理和流变特性以及沥青混合物的铺装性能，使用复合添加剂Rediset对其进行了改性。 Rediset由阳离子表面活性剂和基于有机添加剂的流变改性剂组成。选择了常用的材料，例如Pen 60/80沥青和沥青混凝土（AC-20）。结果表明，Rediset可以改善沥青的渗透性和软化点，使沥青变得越来越硬。所有Rediset改性的沥青混凝土的低温性能等级（PG）与不含Rediset的沥青相同。尽管Rediset可以降低Rediset改性沥青混凝土的车辙和抗裂性，但是所有Rediset含量低于2％的Rediset改性沥青混凝土仍满足最大弯曲应变大于2000με的要求，并且Rediset的动态稳定性含有3％Rediset的改性沥青混凝土仍高于1000转/毫米。 Rediset中的阳离子表面活性剂可起到防剥离剂的作用，并改善骨料和沥青粘合剂界面之间的粘附性，从而增强Rediset改性沥青混凝土的耐湿性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号