熱再生瀝青混合料路用性能評(píng)價(jià)

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關(guān)鍵詞：路面工程；廠拌熱再生；灰靶決策模型；RAP摻量；再生劑；路用性能中圖分類號(hào)：U416.2 文獻(xiàn)標(biāo)志碼：A 文章編號(hào)：1005-8249（2025）02-0131-08DOI：10.19860/j.cnki.issn1005-8249.2025.02.022

Abstract：Tofullyutilizerecycledasphalt pavement materials，theinfluenceofRAPcontentontheroad performanceof factory mixed hotrecycledasphalt mixture wasanalyzed throughhigh-temperatureruting，smallbeambending，immersion Marshal test，andfreze-thaw spliting testmethods；DeterminetheoptimalratioschemeforRAPdosagethrough thegreytarget decisionmodel.Theresultsshowedthatas theRAPcontentincreased，thehigh-temperature stabilityof thefactory mixed hot recycledasphaltmixturegraduallyimproved，whilethewaterstabilityandlow-temperaturecrackresistancegradualy decreased；Andtheevaluation indicators for high temperature stability，low temperaturecrackresistance，andwaterstability change faster within the RAP content range of 30 % to 40 % ；The rejuvenator improves the low - temperature crack resistance and waterstabilityofthefactorymixedhotrecycledasphaltmixture；Basedonthegreytarget decisionmodel，theasphaltmixture with 40 % RAP content and the addition of rejuvenator was ultimately determined as the optimal solution.

Key words：road surface enginering；hot mix regeneration；grey target decision model；RAPcontent；regenerant；road performance

0 引言

隨著已運(yùn)營(yíng)公路進(jìn)人大修周期，產(chǎn)生大量的瀝青路面回收料，其再生利用尤為重要。（剩余6921字）