[1]李 波,李 鹏,张新雨,等.废旧胶粉的反应与交联作用对橡胶沥青黏度的影响[J].长安大学学报(自然科学版),2017,37(02):26-34.
　LI Bo,LI Peng,ZHANG Xin-yu,et al.Interaction and particle effect of crumb rubber characteristics on Brookfield viscosity of rubber asphalt binder[J].Journal of Chang’an University (Natural Science Edition),2017,37(02):26-34.
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废旧胶粉的反应与交联作用对橡胶沥青黏度的影响()
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长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

卷:
第37卷
期数:
2017年02期
页码:
26-34
栏目:
道路工程
出版日期:
2017-03-31

文章信息/Info

Title:
Interaction and particle effect of crumb rubber characteristics on Brookfield viscosity of rubber asphalt binder
作者:
李 波; 李 鹏; 张新雨; 曹 贵; 杨小龙
1. 兰州交通大学 甘肃省道路桥梁与地下工程重点实验室，甘肃 兰州 730070；2. 甘肃省交通科学研究院有限公司，甘肃 兰州 730050；3. 甘肃路桥建设集团有限公司 甘肃省道面工程技术研究中心，甘肃 兰州 730030
Author(s):
LI Bo;  LI Peng;  ZHANG Xin-yu;  CAO Gui;  YANG Xiao-long
1. Key Laboratory of Road & Bridge and Underground Engineering of Gansu Province, Lanzhou Jiaotong University, Lanzhou 730070, Gansu, China; 2. Gansu Provincial Transportation Research Institute Co. Ltd., Lanzhou 730050, Gansu, China; 3. Pavement Engineering and Research Center in Gansu Province, Gansu Road and Bridge Construction Group Co. Ltd., Lanzhou 730030, Gansu, China
关键词:
道路工程; 橡胶沥青; 废旧胶粉; 布氏旋转黏度; 凝胶色谱; 反应作用; 交联作用
Keywords:
road engineering;  rubber asphalt;  crumb rubber;  Brookfield viscosity;  high pressuregel permeation chromatographic;  interaction effect;  particle effect
分类号:
U414
文献标志码:
A
摘要:
以布氏旋转黏度为指标，研究了废旧胶粉掺量、粒径、制备工艺等特性对橡胶沥青以及滤除胶粉后改性沥青黏度的影响，并采用凝胶色谱试验分析了沥青大分子(LMS)的变化，在此基础上，探讨了胶粉与沥青的反应作用（IE）与胶粉颗粒在沥青中的交联作用（PE）对橡胶沥青黏度的影响机理。研究结果表明：随着胶粉掺量的增加，橡胶沥青的黏度、胶粉与沥青的反应作用及未反应胶粉的交联作用、LMS含量也逐渐增大，滤除未反应胶粉颗粒后的改性沥青黏度增长并不明显；常温胶粉改性沥青的黏度、胶粉与沥青的反应作用和未反应胶粉的交联作用明显高于冷冻胶粉改性沥青的黏度，而80目或高掺量冷冻胶粉改性沥青过滤沥青的黏度大于常温胶粉改性沥青过滤沥青的黏度，不同生产工艺胶粉改性沥青的LMS含量没有明显变化规律；40目的废旧胶粉改性沥青的黏度和未反应胶粉的交联作用较30目和80目大，而80目常温胶粉改性沥青中胶粉与沥青的反应作用最大，增加冷冻胶粉的细度对于增加滤除未反应胶粉颗粒后改性沥青的黏度更有效，胶粉粒径越小，橡胶沥青LMS含量越大；橡胶沥青的LMS与黏度有较为显著的相关性，与其IE有一定的相关性，而与PE的相关性较差。废旧胶粉特性对橡胶沥青的黏度影响显著，合理地选择废旧胶粉参数有助于制备高性能的橡胶沥青。
Abstract:
Effect of crumb rubber modifier (CRM) characteristics on rubber asphalt and rubber asphalt binder filtered rubber powder was studied based on Brookfield viscosity. These characteristics include content, particle size and production method. Large molecular sizes (LMS) of asphalt were analyzed by high pressure-gel permeation chromatographic experiment. Based on this, the influence mechanism of the interaction effect (IE) and the particle effect (PE) on Brookfield viscosity was discussed. The results show that the viscosity, IE, PE and LMS increase as the crumb rubber content increase for rubber asphalt binder, which is not obvious for asphalt binder filtered rubber particle size. The viscosity, IE, PE of ambient rubber asphalt binder are obviously larger than that of cryogenic CRM binders. The viscosity of cryogenic asphalt binder filtered rubber particle size is larger than that of ambient asphalt binder filtered rubber particle size when particle size is 80 mesh or high content. The LMS change rule is not obvious for ambient and cryogenic rubber asphalt binders. The viscosity and PE of 40 mesh rubber asphalt are larger than that of 30 and 80 mesh asphalt, and the IE of 80 mesh rubber asphalt is the highest. It is more effective to reduce particle size for the viscosity of cryogenic asphalt binder filtered rubber particle size. The smaller the particle size of rubber, the larger the LMS of rubber asphalt. LMS has a significant correlation with viscosity and certain relevance with IE, but it is poor for PE. There is a significant influence of crumb rubber modifier characteristics on rubber asphalt binder. Reasonable rubber characteristic is helpful to produce high efficiency rubber asphalt binder.

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更新日期/Last Update: 2017-04-07