资源描述：
《永久性沥青路面沥青稳定基层性能_英文_》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、第9卷第15期2009年8月科学技术与工程Vol19No115Aug.2009167121819(2009)1524554205ScienceTechnologyandEngineeringZ2009Sci1Tech1Engng1交通运输永久性沥青路面沥青稳定基层性能1,212刘福明王端宜孙红燕(华南理工大学土木与交通学院12,广州510640;南昌工程学院土木工程系,南昌330099)摘要对永久性沥青路面的沥青稳定基层及其混合料进行路用性能试验分析研究,试验包括水稳定性试验、车辙试验及疲劳试验等,试验结果表明,富沥青稳定基层的
2、抗水损害、抗疲劳性能好于传统的沥青混合料。关键词沥青稳定基层富沥青永久性沥青路面性能试验中图法分类号U416.217;文献标志码AInrecentyears,thefreewayhavehadrapiddevel2mentisgettingshorterbecausethepavementkeepslos2opmentinChina,andsemi2rigidbasehasbeentheingthestructuralcapacitymainlyduetothecumulativemainpavementstructureinC
3、hinaformanyyears.damageoccurredintheasphaltlayer.Thus,iftheex2However,therearemuchsevereearlydistressesinistingpavementhasseriousfatiguecrackinganddeform2someasphaltpavements.Structrualdefectofsemi2rigidation,anoverlaytoextenditslifemightbeineffectivepavamentislikely
4、tobeoneofthereasons.Flexiblefromstructuralandeconomicalpointofview.baseasphaltpavementsareusedwidelyinmanycoun2Toovercomethoseproblems,theconceptofaper2triesduetotheirgoodperformance,butfewinChina.petualpavementproposedbyELLPAG(EuropeanPer2AsphaltpavementsinChinahave
5、beenusuallyde2petualPavementGroup),anapproachtoprolongthesignedfor152yearlifeexpectancies.but,aftertheservicelivesofasphaltpavements,hasbeenconsidered(3—5)yearsofserviceperiodmanyseriousprematureinthisstudy.Thedefinitionoftheperpetualpavementfailureofasphaltpavemento
6、ccurred,thepavementisatypeofpavementwherenosignificantdeteriorationshouldbereconstructedtogainitsoriginalstructuralca2willdevelopinthefoundationsortheroadbaselayerspacity.However,duetothesignificantlyincreasingprovidedthatcorrectsurfacemaintenanceiscarriedout.traffic
7、volumeandinsufficientbudget,mostofoldpave2ThebasicideaofaperpetualpavementisthatHMAmentsinChinahavebeenpartlyrehabilitatedusingapavementsoveraminimumstrengtharenotlikelytoex2(2—4)cmthickoverlayinsteadofreconstruction.Inhibitstructuraldamageevenwhensubjectedtoveryhigh
8、trafficflowsoverlongperiodsoftime.Rather,de2general,theperformanceperiodofanewlyconstructedteriorationseemstoinitiateinthepavements
