【24h】

The Determination of Mixing and Compaction Temperature of Recycled Asphalt Mixtures

机译:再生沥青混合料混合压实温度的确定

获取原文
获取原文并翻译 | 示例

摘要

In order to determine the best mixing temperature and compaction temperature of recycled asphalt mixture, firstly, the recycled asphalt mixture specimens were formed by SGC, and the best compaction temperature was determined according to the volume parameters of mixture samples. Then the best mixing temperature was obtained by the viscositytemperature curve of recycled asphalt at the appropriate shear rate. The results show that the construction properties of recycled asphalt mixture were significantly different from general asphalt mixture. For the recycled base asphalt mixture, the optimum compaction temperature and mixing temperature obtained by the SGC test, was closed to the temperatures obtained by the viscositytemperature curve of recycled asphalt. For the recycled polymer modified asphalt mixture, the optimum compaction temperature and mixing temperature obtained by the SGC test, was lower than the temperatures obtained by the viscosity-temperature curve of recycled asphalt. Therefore, in the actual construction lacking of the SGC equipment, the optimum compaction temperature and mixing temperature can be determined by reducing 5℃-10℃ on the basis of the temperatures determined by viscositytemperature curves. And the viscosity test conditions of recycled modified asphalt were recommended.
机译:为了确定再生沥青混合料的最佳混合温度和压实温度,首先通过SGC形成再生沥青混合料试样,并根据混合料的体积参数确定最佳压实温度。然后在适当的剪切速率下,通过再生沥青的粘度温度曲线获得最佳混合温度。结果表明,再生沥青混合料的施工性能与普通沥青混合料明显不同。对于再生基础沥青混合物,通过SGC试验获得的最佳压实温度和混合温度接近于再生沥青粘度温度曲线获得的温度。对于再生聚合物改性沥青混合物,通过SGC试验获得的最佳压实温度和混合温度低于再生沥青的粘度-温度曲线获得的温度。因此,在实际缺少SGC设备的结构中,可以根据粘度温度曲线确定的温度降低5℃-10℃来确定最佳压实温度和混合温度。并推荐了再生改性沥青的粘度测试条件。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

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