期刊论文

Study on Applicability of Cone Penetration and Ball Penetration as Rubber Asphalt Performance Evaluation Indicators

中文

公路交通科技

1002-0268

2018

35

10

9-18

10.3969/j.issn.1002-0268.2018.10.002

广西科技计划项目（桂科AC16380112）；

本校为第一机构

为了研究锥入度与球入度作为评价橡胶沥青性能指标的适用性及检测指标间的相关性,通过大量室内检测数据进行了系统分析。研究结果表明:采用针入度评价橡胶沥青温度敏感性易造成数据失真,而锥入度可作为室内评价橡胶沥青性能的检测指标;传统弹性恢复指标不能合理评价橡胶沥青弹性恢复特性,延度指标不适用于评价橡胶沥青低温抗裂特性;黏温指数可作为评价橡胶沥青感温特性指标,当胶粉掺量为20%,粉胶比为1. 0时,橡胶沥青胶浆黏温指数最大,其中HD2类型橡胶沥青胶浆黏温指数达2. 031 7;温度敏感性复数指数可量化评价橡胶沥青等胶结料的感温性指标;采用动态剪切流变仪温度扫描试验得出的存储模量对数和...

In order to study the applicability of cone penetration and ball penetration as the performance indicators for evaluating rubber asphalt and the correlation between them,a large number of indoor testing data are used for systematic analysis. The result shows that ( 1) The data distortion is easy to be caused by using needle penetration to evaluate the temperature sensitivity of rubber asphalt,while the cone penetration can be used as the indoor test indicator to evaluate the performance of rubber asphalt. ( 2) Traditional elastic recovery indic...