SBS与SBR改性乳化沥青粘层油性能对比分析
发布时间：2019-01-10 18:47
【摘要】：近些年来我国交通呈现“高速度、大流量、重载化、渠道化”的趋势，因此对不同结构层间的粘结层提出了严峻的考验。然而，我国现有粘层材料表现出抗剪、抗拉拔强度不足的缺陷，并在抗水损害性能，耐疲劳性能等方面也存在诸多不足之处。本文针对我国粘层油所表现出的缺点，制备了SBS与SBR改性乳化沥青，并对其技术指标和粘结性能展开研究，以便通过对比分析，推荐性能较好的粘层油。 本文从乳化沥青乳化机理及破乳机理出发，基于不同的基质沥青、改性剂及改性剂剂量成功制备了SBS与SBR改性乳化沥青，结合改性乳化沥青标准粘度、5天储存稳定性、显微镜亚微观结构及其蒸发残留物技术指标，分析了改性乳化沥青的技术性质。 通过层间直接剪切与拉拔试验对所选取的四种改性乳化沥青粘结性能进行研究，分析了不同因素对改性乳化沥青粘结性能的影响程度，并对其粘结性能进行了对比分析，，比较其优劣性。并通过层间浸水直接剪切试验和浸水拉拔等试验，对比分析了四种改性乳化沥青的耐水性。通过多方面性能试验分析表明，SBS改性乳化沥青较之SBR改性乳化沥青具有更好的粘结性能，且其抗水损害能力也优于后者。
[Abstract]:In recent years, the traffic of our country presents the trend of "high speed, large flow, heavy load, channelization", so it puts forward a severe test to the bond layer between different structure layers. However, the existing adhesive materials in China have some defects such as insufficient shear strength and drawing strength, and there are also many shortcomings in water damage resistance and fatigue resistance. In this paper, the emulsified asphalt modified by SBS and SBR was prepared in allusion to the shortcomings of the viscous layer oil in China, and its technical index and adhesive property were studied, so as to recommend the viscosity layer oil with better performance through comparison and analysis. Based on the emulsification mechanism and demulsification mechanism of emulsified asphalt, SBS and SBR modified bitumen were successfully prepared based on different dosage of matrix asphalt, modifier and modifier. The technical properties of modified emulsified asphalt were analyzed by microscopic submicroscopic structure and technical index of evaporation residue. The bindability of four kinds of modified emulsified asphalt was studied by direct shearing and drawing test. The influence of different factors on the adhesive property of modified emulsified asphalt was analyzed, and the adhesive property of modified emulsified asphalt was compared and analyzed. Compare its merits and demerits. The water resistance of four kinds of modified emulsified asphalt was analyzed by direct shear test and drawing test. The experimental results show that SBS modified emulsified asphalt has better adhesive property than SBR modified emulsified asphalt, and its water damage resistance is better than the latter.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U414
本文编号：2406667
[Abstract]:In recent years, the traffic of our country presents the trend of "high speed, large flow, heavy load, channelization", so it puts forward a severe test to the bond layer between different structure layers. However, the existing adhesive materials in China have some defects such as insufficient shear strength and drawing strength, and there are also many shortcomings in water damage resistance and fatigue resistance. In this paper, the emulsified asphalt modified by SBS and SBR was prepared in allusion to the shortcomings of the viscous layer oil in China, and its technical index and adhesive property were studied, so as to recommend the viscosity layer oil with better performance through comparison and analysis. Based on the emulsification mechanism and demulsification mechanism of emulsified asphalt, SBS and SBR modified bitumen were successfully prepared based on different dosage of matrix asphalt, modifier and modifier. The technical properties of modified emulsified asphalt were analyzed by microscopic submicroscopic structure and technical index of evaporation residue. The bindability of four kinds of modified emulsified asphalt was studied by direct shearing and drawing test. The influence of different factors on the adhesive property of modified emulsified asphalt was analyzed, and the adhesive property of modified emulsified asphalt was compared and analyzed. Compare its merits and demerits. The water resistance of four kinds of modified emulsified asphalt was analyzed by direct shear test and drawing test. The experimental results show that SBS modified emulsified asphalt has better adhesive property than SBR modified emulsified asphalt, and its water damage resistance is better than the latter.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U414
【引证文献】
相关硕士学位论文 前1条
1 杨振国;高温丁苯胶乳的合成与改性乳化沥青的制备研究[D];大连理工大学;2015年
本文编号：2406667
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