【作者】 肖晶晶；

【导师】 郑南翔；

【作者基本信息】 长安大学 ， 材料学， 2007， 硕士

【摘要】 目前,我国大量高速公路已进入维修养护期,高速公路沥青路面的养护工作越来越受重视。微表处作为一种施工方便,环境污染小,造价低廉,开发交通快,使用寿命长的路面预防性养护技术,在国外已经得到了广泛应用,自2000年进入我国以来,便备受关注,并得到迅速的推广。本研究首先论述了预防性养护技术的重要意义,介绍了微表处技术在国内外的应用情况,然后通过大量的室内试验,总结了制备改性乳化沥青的关键性技术以及原材料选用的注意事项,同时考察了皂液pH值,乳化剂、改性剂的种类及剂量,稳定剂等重要因素对改性乳化沥青的乳化效果、贮存稳定性以及蒸发残留物性质的影响规律。此外,本文还对微表处混合料的施工性能及路用性能进行了深入研究。分别探讨了集料砂当量、矿料级配、乳化剂、填料、添加剂、外加水量等因素对混合料施工性能的影响;集料砂当量、改性剂、水泥、温度对混合料成型速度及可开放交通时间的影响;集料性质、不同备料方法、油石比、改性剂种类及剂量对微表处混合料耐磨耗能力的影响。更多还原

【Abstract】 At present, a large number of freeways of our country have already entered maintenance period, maintenance work of freeways on asphalt pavement is being paid more and more attention to. As a convenient, little pollution, low-cost, quick traffic and durable preventive maintenance technology, Micro-surfacing has been widely used abroad already, since entering our country in 2000, Micro-surfacing receive much concern, get fast popularization.This research has described the important meaning of preventative maintenance technology at first, then introduced the application of Micro-surfacing at home and abroad. Through a series of laboratory tests, the writer summarized the key technology of modified asphalt emulsion’s production process and the attentive matters during the the raw materials selection. At the same time, the influence rules of the soap liquid pH value, the type and the dosage of emulsifier and polymer modifier and stability additive on the emulsification effect, storage stability, the characters of emulsion evaporating residues has been investigated.In addition, this text has also further investigated construction performance and pavement performance of Micro-surfacing mixture. Have probed into the impacts of aggregate Sand Equivalence, gradation, emulsifier, filler, additive and extra water amount on the mixture’s Mixing Time, the impacts of aggregate Sand Equivalence, polymer modifier, cement, temperature on the mixture’s Cohesion Torque, the impacts of materials character, different test method, asphalt aggregate ratio, polymer modifier on the mixture’s 1h Wet Track Abrasion Test.更多还原