橡胶沥青路面技术规程

CJJUCJJ中华人民共和国行业标准PCJJ/T×－20××备案号J×－20××橡胶沥青路面技术规程TechnicalSpecificationforRubberizedAsphaltPavement20××－××－××发布20××－××－01实施中华人民共和国住房和城乡建设部发布PAGEPAGE2中华人民共和国行业标准橡胶沥青路面技术规程TechnicalSpecificationforRubberizedAsphaltPavementCJJ/T***-20**批准部门：中华人民共和国住房和城乡建设部施行日期：20××年×月×日中国建筑工业出版社20××北京前言根据住房和城乡建设部《关于印发〈2013年工程建设标准规范制订、修订计划〉的通知》（建标[2013]6号）的要求，规程编制组经广泛调查研究，认真总结实践经验，参考有关国际标准和国外先进标准，并在广泛征求意见的基础上，编制了本规程。本规程的主要技术内容是：1总则；2术语和符号；3基本规定；4材料；5路面结构组合设计；6混合料；7混合料施工；8表面处治与封层。本规程由住房和城乡建设部负责管理，由广州市市政集团有限公司负责具体技术内容的解释。执行过程中如有意见或建议，请寄送广州市市政集团有限公司（地址：广州市环市东路338号银政大厦，邮编：510060）。本规程主编单位：广州市市政集团有限公司福建省金泉建设集团有限公司本规程参编单位：上海孙祖望路桥技术研究有限公司长安大学江苏省交通科学研究院西安达刚路面机械股份有限公司广州市市政工程设计研究院北京路新沥青混凝土有限公司重庆特铺路面工程技术有限公司福建省鑫海湾建材科技有限公司山东建筑大学本规程主要起草人员：孙祖望陈舜明郑海峰金年喜张广春安关峰张京锋郝培文贾渝宁平华吴春颖孙建西杜莘王立志任民王译民曹建新王路松赖见吾黄庆捷洪钢本规程主要审查人员：

目次总则···························································································术语和符号··················································································2.1术语·································································································2.2符号·································································································基本规定······················································································材料···························································································4.1原材料······························································································4.2橡胶改性沥青结合料···········································································4.3沥青-橡胶结合料················································································5路面结构组合设计··········································································5.1一般规定···························································································5.2新建沥青混凝土路面···········································································5.3旧沥青路面养护维修罩面····································································5.4水泥路面改造加铺··············································································5.5桥面铺装···························································································5.6隧道铺装···························································································5.7表面处治与封层·················································································6混合料························································································6.1设计···········································································6.2拌制···········································································6.3生产质量控制······························································7施工··················································································7.1一般规定···························································································7.2准备工作···········································································7.3试验路段铺筑·················································································7.4运输·································································································7.5摊铺·································································································7.6碾压·································································································7.7接缝处理···························································································7.8开放交通···························································································7.9质量检验···········································································8表面处治与封层············································································8.1设计·································································································8.2施工·································································································8.3质量检验···········································································附录A沥青-橡胶结合料特性检验实验室试验方法········································附录B悬浮密实型橡胶沥青混合料设计方法···················································附录C骨架密实型橡胶沥青混合料设计方法···················································附录D骨架空隙型橡胶沥青混合料设计方法···················································附录E平均有效沥青膜厚度和有效粉胶比计算方法··········································附录F橡胶沥青混合料车辙试验方法·····························································附录G橡胶沥青表面处治与封层设计方法······················································附录H橡胶沥青表面处治维奥莱特（Vialit）平板冲击试验方法·························附录J结合料和石屑洒布率与洒布精度试验方法·············································附录K表面处治与石屑封层缺陷的表观评价方法·············································本规程用词说明····························································引用标准名录·····················································································附：条文说明·····························································ContentsGeneralProvisions·········································································2TerminologiesandSymbols·····························································2.1Terms······················································································2.2Symbols···················································································3BasicRequirements······················································································4Materials···································································································4.1RawMaterial························································································4.2RubberModifiedAsphaltBinder·······························································4.3Asphalt-RubberBinder···········································································5CombinationDesignofPavementStructure·····························5.1GeneralRequirements·············································································5.2NewConstructionAsphaltPavements·········································5.3MaintenanceOverlayingforExistingAsphaltPavements································5.4ReconstructionandOverlayingforConcretePavements··································5.5BridgeDeckPavements·········································································5.6TunnelPavements··················································································5.7SurfaceTretmentsandSealCoats······························································6Mixture··········································································6.1Design································································································6.2Mixing································································································6.3QualityControlofProduction···································································7Construction································································7.1GeneralRequirements·············································································7.2PreperationofExistingpavement······························································7.3PlacementofTestStrips··········································································7.4Delivery······························································································7.5Spreading····························································································7.6Compaction··························································································7.7JointsTreatment···················································································7.8OpenningtoTraffic················································································7.9QualityInspecttion·························································8SurfaceTreatmentandSealCoat·····································································8.1Design································································································8.2Construction·························································································8.3QualityInspection·························································AppendixALaboratoryTestMethodsforInspectonofAsphalt-RubberProperties········AppendixBDesignMethodforRubberizedAsphaltMixes，Suspension-DenseType····AppendixCDesignMethodforRubberizedAsphaltMixes，Selekon-DenseType········AppendixDDesignMethodforRubberizedAsphaltMixes，Open-GradedType··········AppendixECalculationMethodforAverageEffectiveAsphaltFilmThicknessandFiller-AsphaltRatio··························································································AppendixFRuttingTestMethedforRubberizedAsphaltMixtures····························AppendixGDesignMethodforRubberizedAsphaltSurfaceTreatmentandSealCoat···AppendixHVialitPlateShockTestMethodforRubberizedAsphaltSurfaceTreatmentandSealCoat·······································································································AppendixJTestMethodforRateofSpreadAccuracyofSpreadingBinderandChippings······································································································AppendixKVisualAssessmentMethodforDefectsofRubberizedAsphaltSurfaceTreatmentandSealCoat····················································································ExplanationofWordinginThisStandardCode·························································ListofQuotedStandards·········································································Addition：ExplanationofProvisions···························································1总则1.0.1为规范橡胶沥青路面的设计、施工、质量检验与验收的技术要求，统一设计、施工、质量控制和验收的技术标准，提高工程质量，制定本规程。1.0.2本规程适用于道路及其他公共设施铺面工程等橡胶1.0.3橡胶沥青路面设计、施工、质量控制和验收除应符合本2术语和符号2.1术语2.1.1橡胶屑改性剂crumbrubbermodifier,CRM，或groundcrumbrubber，GCR，或groundtirerubber，用于改善沥青材料性能的碎化废旧轮胎橡胶屑的统称。2.1.2高天然橡胶含量橡胶屑highnaturalcrumbrubber含有40%～48%天然橡胶或异戊二烯橡胶和至少含有50%以上橡胶碳氢化合物的橡胶屑。2.1.3再生用废轮胎橡胶recycledtirerubber利用轿车、卡车或商用车辆（主要是公路运输或长途运输车辆）的废轮胎加工处理获得满足要求的回收橡胶。2.1.4直投式干法处理将橡胶屑、改性剂和集料一起拌和后，再加入结合料搅拌成热拌混合料的方法。2.1.5将橡胶屑与基质沥青掺和制备成结合料后再加入到烘干集料中搅拌成热拌混合料的方法。2.1.6在炼制厂或沥青贮存库和分装站将橡胶屑（CRM）与热沥青掺和制备成结合料的一种湿法处理方法。2.1.7所有用湿法处理工艺生产的含有废轮胎橡胶屑的沥青结合料的统称，可以分为沥青-橡胶和橡胶改性沥青两大类。2.1.8沥青-橡胶结合料asphalt-rubberbinder（由基质沥青、回收的废旧轮胎橡胶和某些添加剂掺和成的混合物，其中至少有占总重量15%的橡胶成分，并在热的基质沥青中充分反应使橡胶颗粒融胀而形成的非均质两相材料。2.1.9橡胶改性沥青结合料rubbermodifiedbinder,RMB或细粒径的橡胶粉在热沥青中经机械剪切研磨消融并均匀地分布在基质沥青中的均质改性沥青材料。2.1.10沥青-橡胶应力吸收（膜夹）层stress-absorbingmembraneinterlayer-asphaltrubber，SAMI-在现有路面上敷设一层由沥青-橡胶和石屑组成的可以大大延缓反射裂缝在新路面上传播的石屑封层。2.2符号A-R或AR(Asphalt-Rubber)——沥青-橡胶ARHM(Asphalt-RubberHotMix)——沥青-橡胶热拌混合料ARHM-SG(Asphalt-RubberHotMix,SShape-GradedType)——S形级配悬浮密实型沥青-橡胶热拌混合料ARHM-SD(Asphalt-RubberHotMix,Skeleton-DenseType)——骨架密实型沥青-橡胶热拌混合料ARHM-OG(Asphalt-RubberHotMix,Open-GradedType)——骨架空隙型（开级配）沥青-橡胶热拌混合料ARST(Asphalt-RubberSurfaceTreatment)——沥青-橡胶表面处治CRM(CrumbRubberModifier)——橡胶屑改性剂GCR(GroundCrumbRubber)——磨碎的橡胶屑GTR(GroundTireRubber)——磨碎的轮胎橡胶HiNat(HighNaturalRubber)——高天然橡胶含量PSV(PolishedStoneValue)——粗集料磨光值RMB(RubberModifiedBinder)——橡胶改性沥青结合料SAMI-AR(StressAbsorbingMembraneInterlayer-AsphaltRubber)——沥青-橡胶应力吸收夹层TRMA(TerminalBlendRubberModifiedAsphalt)——厂拌掺和橡胶改性沥青TRHMA(TerminalBlendRubberModifiedAsphaltMix)——厂拌掺和橡胶改性沥青混合料TRHMA-DG(TerminalBlendRubberModifiedAsphaltMix，ContinuouslyDense-Graded)——(厂拌掺和)连续级配橡胶改性沥青混合料TRSMA(TerminalBlendRubberModifiedStoneMatrixAsphalt)——(厂拌掺和)SMA橡胶改性沥青混合料3基本规定3.0.1橡胶沥青路面可分为热拌型橡胶沥青路面和喷洒型橡胶沥青路面两大类，其面层类型及适用范围宜符合下列规定：1热拌型橡胶沥青路面面层类型包括悬浮密实型、骨架密实型和骨架空隙型橡胶沥青混合料，适用于新建沥青路面的表面磨耗层与联结层，以及旧沥青路面和水泥路面不同厚度的罩面层，包括薄层和超薄结构罩面。2喷洒型橡胶沥青路面面层类型包括橡胶沥青表面处治和封层，橡胶沥青表面处治适用于沥青路面预防性养护的保护层和交通等级较低的城乡道路的上面层，橡胶沥青下封层适用于沥青路面、水泥路面、桥面铺装的防水粘结层和应力吸收（夹）层。3.0.2橡胶沥青结合料按作用机理可分为橡胶改性沥青和沥青-橡胶两种结合料类型，其适用范围宜符合下列规定：1橡胶改性沥青结合料可作为SBR、SBS等橡胶类改性沥青的替代品适用于各种橡胶类改性沥青的应用场合，包括各种级配类型的热拌混合料和封层领域，但其优势应用领域是连续级配和SMA混合料。2沥青-橡胶结合料适用于S形级配悬浮密实型、骨架密实型和骨架空隙型混合料，以及作为表面处治与封层的粘结材料。3.0.3橡胶沥青混合料按结构原理可分为连续级配橡胶改性沥青混合料、SMA橡胶改性沥青混合料、S形级配悬浮密实型沥青-橡胶混合料、骨架密实型沥青-橡胶混合料、骨架空隙型沥青-橡胶混合料等五种类型，其适用范围宜符合下列规定：1连续级配橡胶改性沥青混合料适用于新建和重建路面的表面磨耗层和中、下面层，SMA橡胶改性沥青混合料适用于新建和重建路面的磨耗层和联结层。2S形级配悬浮密实型沥青-橡胶混合料和骨架密实型沥青-橡胶混合料适用于新建和重建路面的磨耗层和维修路面的罩面层。3骨架空隙型沥青-橡胶混合料适用于新建和重建路面以及维修罩面的具有排水和降噪功能的表面磨耗层。4材料原材料基质沥青的技术要求应符合表4.1.1的规定：表4.1.1道路石油沥青技术要求特性指标单位沥青标号110号沥青标号90号沥青标号70号沥青标号50号试验方法针入度（25℃，5s，100g）0.1mm100～12080～10060～7050～60JTGE20-T0604针入度指数PI/-1.5～+1.0JTGE20-T0604软化点（R&B），≥℃43454650JTGE20-T060660℃动力粘度Pa•s120~140140～160160～180200～240JTGE20-T062010℃延度，≥cm40302015JTGE20-T060515℃延度，≥cm10010010080JTGE20-T0605蜡含量（蒸馏法），≤%2.22.22.22.2JTGE20-T0615闪点，≥℃230245260260JTGE20-T0611溶解度，≥%99.599.599.599.5JTGE20-T0607密度（15℃）g/cm3实测记录实测记录实测记录实测记录JTGE20-T0603TFOT（或RTFOT）后JTGE20-T0610或T0609质量变化，≤%±0.8±0.8±0.8±0.8残留针入度比，≥%55576163JTGE20-T0604残留延度（25℃），≥cm50505050JTGE20-T0605残留延度（15℃）≥cm30201510JTGE20-T0605残留延度（10℃）≥cm8642JTGE20-T06054.1.2粗集料应符合下列规定：1应采用石质坚硬、耐磨、清洁、不含风化颗粒、近立方体颗粒的碎石，并与沥青有良好的粘附性。上面层粗集料宜采用玄武岩、辉绿岩等中性硬质石料或花岗岩等酸性硬质石料，质量应符合表4.1.2-1所规定的技术要求。中、下面层粗集料可按当地石料来源来选择，对酸性石料应采取相应的抗剥落措施，质量应符合表4.1.2-2的技术要求。表4.1.2-1上面层粗集料质量技术要求特性指标单位技术要求试验方法石料压碎值，≤％26JTGE42T0316洛杉机磨耗损失，≤％28JTGE42T0317粗集料磨光值PSV，≥——42JTGE42T0321表观相对密度，≥——2.60JTGE42T0304吸水率，≤％2.0JTGE42T0304坚固性，≤％12JTGE42T0314针片状颗粒含量（混合料），≤％12JTGE42T0312水洗法<0.075mm颗粒含量，≤％0.8JTGE42T0310软石含量，≤％3JTGE42T0320粗集料与沥青的粘附性，≥——5级JTJ052T0616T0663注：对3mm～5mm规格的粗集料，针片状颗粒含量可不予要求，<0.075mm含量可放宽到2%。表4.1.2-2中、下面层粗集料质量技术要求特性指标单位技术要求试验方法石料压碎值，≤％28JTGE42T0316洛杉机磨耗损失，≤％30JTGE42T0317表观相对密度，≥——2.50JTGE42T0304吸水率，≤％3.0JTGE42T0304坚固性，≤％12JTGE42T0314针片状颗粒含量（混合料），≤其中粒径大于9.5mm，≤其中粒径小于9.5mm，≤％％％151218JTGE42T0312水洗法<0.075mm颗粒含量，≤％1JTGE42T0310软石含量，≤％5JTGE42T0320粗集料与沥青的粘附性，≥——4级JTGE20T0616T0663注：对3mm～5mm规格的粗集料，针片状颗粒含量可不予要求，<0.075mm含量可放宽到3%。2粗集料应按3种～4种规格尺寸供料，粒径规格和控制尺寸以及适用的面层应分别符合表4.1.2-3和表4.1.2-4的规定。控制上限筛孔的通过率应为100%，控制下限筛孔的通过率不大于15%。表4.1.2-3沥青混合料用粗集料粒径规格和控制尺寸规格名称规格尺寸mm控制尺寸mm通过下列筛孔(mm)的质量百分率（%）31.526.51913.29.54.752.360.6S810~2531.5~13.210090~1000~150~5S910~2026.5~9.510090~1000~150~5S1010~1516~9.510090~1000~150~5S125~1013.2~4.7510090~1000~150~5S143~59.5~2.3610090~1000~150~3表4.1.2-4各面层用集料规格组成单位：mm面层结构层集料规格各面层用集料规格组成下面层规格尺寸10～2510～205～103～5控制尺寸31.5～13.226.5～9.513.2～4.759.5～2.36中面层规格尺寸10～205～103～5控制尺寸26.5～9.513.2～4.759.5～2.36上面层规格尺寸10～155～103～5控制尺寸16～9.513.2～4.759.5～2.364.1.3用于橡胶沥青表面处治与封层的粗集料应符合下列规定：1采用玄武岩、辉绿岩等中性硬质石料经二次反击破碎形成的具有良好立方性的单粒径石屑，其针片状颗粒的含量应不大于10%，其余各项技术指标应符合本规程表4.1.2-1的规定。2用于橡胶沥青表面处治的石屑除应符合本规程表4.1.2-1的规定外，其磨光值PSV应不小于50。4.1.4用于热拌橡胶沥青混合料和封层的细集料应符合下列规定：1应采用坚硬、洁净、干燥、无风化、无杂质的机制砂或石屑，上面层细集料宜采用碱性的硬质石灰岩，或玄武岩、辉绿岩等中性石料，其质量应符合表4.1.4-1的技术要求。用于沥青-橡胶混合料的细集料应严格控制其粉料含量，宜使用机制砂。表4.1.4-1细集料质量技术要求特性指标单位技术要求试验方法表观相对密度，≥——2.50JTGE42T0328坚固性（＞0.3mm部分），≥%12JTGE42T0340砂当量，≥%60JTGE42T0334亚甲蓝值，≤g/kg25JTGE42T0349棱角性（流动时间），≥s30JTGE42T03452中、下面层的细集料可采用部分天然砂，天然砂在矿料中的比例不宜超过8%，天然砂中的含泥量不应大于3%，用于磨耗层的橡胶沥青混合料不应采用天然砂。严禁采用采石场带有表面风化层碎屑的下脚料作为细集料。3细集料的规格应符合表4.1.4-2的规定。表4.1.4-2面层用细集料规格规格尺寸mm通过下列筛孔（mm）的质量百分率（%）9.54.752.361.180.60.30.150.0750～3——10080～10050～8025～608～450～250～120～510090～10060～9040～7520～557～402～200～104.1.5热拌沥青混合料的填料宜采用经磨细的石灰岩石料矿粉。矿粉应干燥、清洁，其质量应满足表4.1.5的技术要求。搅拌设备二级除尘器回收的粉料不得用作填料。烘干的热集料中粉料不得超过填料总量的25%（新矿粉加入量≥75%）。表4.1.5矿粉质量技术要求特性指标单位技术要求试验方法表观相对密度,≥t/m32.50JTGE42T0352含水量,≤%1JTGE40T0103外观—无团粒结块—亲水系数，＜—1JTGE42T0353塑性指数，＜—4JTGE42T0354加热安定性—实测记录JTGE42T0355粒度范围<0.6mm<0.15mm<0.075mm%%%10090～10075～100JTGE42T03514.1.6对酸性的粗集料应采用抗剥落剂来改善沥青与集料的粘附性，抗剥落剂应符合下列规定：1抗剥落剂可采用消石灰、水泥或化学抗剥落剂；2消石灰和水泥的用量分别宜为1%～2%和1%～3%；3化学抗剥落剂应采用热稳定性好的耐热抗剥落剂，添加剂量应根据供应商的规格确定；4抗剥落剂的性能检验应符合现行行业规范《公路工程沥青及沥青混合料试验规程》JTGE20T0663的规定，浸水马歇尔试验残留稳定度不应小于85%，冻融劈裂试验残留强度比不应小于80%。4.1.7稳定剂宜采用木质素纤维、矿物素纤维等，木质素纤维的质量应满足表4.1.7的技术要求。表4.1.7木质素纤维质量技术要求检验项目单位技术要求试验方法纤维长度，≤mm6水溶液中显微镜观测灰分含量％18±5590℃～650℃燃烧后测定残余物pH值－7.5±1.0水溶液用pH试纸或pH计测定吸油率，≥－纤维质量的5倍煤油浸泡后放在筛上经振敲后称量含水率（以质量计）＜%5105℃烘箱烘2h后冷却称重4.1.8橡胶沥青结合料的橡胶屑应符合下列规定：1橡胶屑应为通过常温磨碎或粒化方法制成的橡胶颗粒碎屑，未经常温切割、碾碎而成的橡胶屑不应作为制作橡胶沥青的原材料。2橡胶屑中不应含有钢丝、纤维和其它杂质。防粘滑石粉或碳化钙的用量不得超过CRM质量的3%。橡胶屑应干燥，与高温沥青搅拌时不应发生泡沫，其物理特性应符合表4.1.8-1的规定。表4.1.8-1轮胎橡胶屑物理特性的技术要求技术指标质量要求试验方法纤维含量（%），≤0.5附录A钢丝含量（%），≤0.01相对密度1.1～1.2颗粒的单边长度（mm），≤4.75滑石粉或碳化钙含量（%），≤3其它杂质含量（%）03废旧轮胎橡胶屑等原材料的化学成分应符合表4.1.8-2的规定。表4.1.8-2废旧轮胎橡胶屑的原材料化学成分的技术要求测试指标小型车废旧轮胎橡胶屑的原材料②高天然橡胶含量橡胶屑的原材料②试验方法最小（%）最大（%）最小（%）最大（%）丙酮抽提物616416GB/T3516灰分——8——8GB/T14837碳黑28——28——GB/T14837橡胶碳氢化合物426550——GB/T14837天然橡胶①22394048——注：①我国尚无测定天然橡胶含量的试验标准，可参考美国试验与材料学会的试验方法ASTMD297进行。②废旧轮胎橡胶屑与高天然橡胶含量橡胶屑宜根据用途，按不同比例掺和使用。4.1.9各种添加剂的质量应满足现行行业标准《沥青混合料改性添加剂》JT/T860和其他相关标准的技术要求。4.2橡胶改性沥青结合料4.2.1橡胶改性沥青宜采用工厂化的生产方式制备，并以成品结合料的形式提供拌和站或现场使用。4.2.2基质沥青与橡胶粉应有良好的相容性，并应满足表4.1.1的技术要求。4.2.3橡胶屑应为细粒径的胶粉，粒径宜在0.3mm（50目）以下。橡胶屑用量宜为结合料总量的5%～15%；橡胶屑用量超过15%时，应添加适当的稳定剂或化学助剂，且宜在使用前进行搅拌。4.2.4橡胶改性沥青的技术指标与试验方法应符合表4.2.4-1或表4.2.4-2的规定。表4.2.4-1均质型橡胶改性沥青技术要求技术指标单位技术要求试验方法寒区温区热区针入度（25℃，5s，100g）0.1mm60～8050～7040～60JTGE20T0604针入度指数PI，≥——-0.8-0.40JTGE20T0604延度（5℃，5cm/min）≥cm302010JTGE20T0605软化点（R&B）≥℃505560JTGE20T0606旋转粘度（135℃）≤Pa•s333JTGE20T0625闪点，≥℃230230230JTGE20T0611溶解度，≥%97.597.597.5JTGE20T0607弹性恢复（25℃）≥%606575JTGE20T0662贮存稳定性，离析，48h软化点差异≤℃333JTGE20T0661TFOT（或RTFOT）后残留物质量变化，≤%±1.0±1.0±1.0JTGE20T0610或T0609针入度比（25℃）≥%556065JTGE20T0604延度（5℃）≥cm20105JTGE20T0605注：1若在不改变橡胶改性沥青物理力学性质并符合安全条件的温度下易于泵送和拌和，或经证明适当提高泵送和拌和温度时能保证橡胶改性沥青的质量，容易施工，可不要求测定135℃黏度。2气候分区按最低月平均气温确定：寒区＜-10℃；温区-10℃~0℃；表4.2.4-2亚均质型橡胶改性沥青技术要求技术指标单位技术要求试验方法寒区温区热区针入度（25℃，5s，100g）0.1mm60～8050～7040～60JTGE20T0604针入度指数PI，≥——-0.8-0.40JTGE20T0604软化点（R&B）≥℃505560JTGE20T0606旋转粘度（177℃）≥Pa•s111JTGE20T0625闪点，≥℃230230230JTGE20T0611溶解度，≥%实测实测实测JTGE20T0607弹性恢复（25℃）≥%606570JTGE20T0662贮存稳定性，离析，48h软化点差异℃实测实测实测JTGE20T0661TFOT（或RTFOT）后残留物质量变化，≤%±1.0±1.0±1.0JTGE20T0610或T0609针入度比（25℃）≥%556065JTGE20T0604注：1亚均质型橡胶改性沥青由于部分胶粉未能消融于沥青中，通常在使用前需要重新搅拌使顶部与底部的结合料混合均匀，但在采用某些添加剂的场合，如能使贮存稳定性达到软化点差小于3℃2气候分区按最低月平均气温确定：寒区＜-10℃；温区-10℃~0℃4.2.5橡胶改性沥青结合料的生产应采用胶体磨或高速剪切的混融法进行，可采用批量式的混融工艺或连续式的混融工艺，生产工艺可相同于常规改性沥青的生产工艺，但其工艺参数应根据橡胶改性沥青的特点进行调试。4.3沥青-橡胶结合料4.3.1沥青-橡胶结合料应采用16目（1.2mm）至50目（0.3mm）和更小粒径的橡胶屑制备。4.3.2沥青-橡胶结合料应现制现用。4.3.3生产前应根据气候、交通负荷等路面使用条件，通过A-R结合料的设计，确定各因素之间的关系并通过实验室的试验来评估所设计的沥青-橡胶是否达到预期的路用性能。4.3.4沥青-橡胶结合料的设计宜根据原材料的实际供应条件，选择几种沥青-橡胶结合料的配比案和工艺参数，通过实验室的性能评估，对不同的方案进行比选和优化。4.3.5基质沥青与橡胶屑应有良好的相容性，应根据气候区域按表4.3.5选用适宜的的基质沥青标号。表4.3.5基质沥青的选择气候区域热区温区寒区沥青标号50号～70号70号～90号90号～110号注：气候分区按最低月平均气温确定：寒区＜-10℃；温区-10℃~0℃4.3.6橡胶屑粒径、级配与用量的选择应遵循下列原则：1橡胶屑粒径与级配应符合表4.3.6-1的规定。表4.3.6-1橡胶屑的粒径与级配要求筛孔尺寸(mm)质量通过百分率（%）用于热拌沥青混合料用于表面处治与封层2.0098～1001001.1845～10095～1000.6020～10035～850.300～4510～300.150～100～40.0750～50～12橡胶屑用量宜符合表4.3.6-2的规定，不应低于结合料总量的15%，用于表面处治与封层的结合料，在喷洒设备的条件容许时，宜选用高值。表4.3.6-2橡胶屑用量要求橡胶屑用量（%）用于热拌沥青混合料用于表面处治与封层16.7~2215~20注：橡胶屑用量为橡胶屑重量占结合料总重之百分率4.3.7沥青-橡胶结合料的设计与评估应符合下列规定：1在180℃、185℃、190℃、195℃等四种融胀温度和45min或60min、90min、240min、360min等四种反应时间下，在实验室制备A-R结合料的料样，并测定不同工况下本规程第4.3.9条规定的四项A-R结合料性能指标。2综合评价实验室性能检验结果后，优化并确定制备A-R结合料的工艺参数。3如所有工况下的性能检验结果均未能达到预期的性能要求，则应调整橡胶屑的用量与粒径参数或重新选择基质沥青与橡胶屑，并对新的配比进行性能检验。4对最终选定的设计配比应进一步验证其稳定性，并按表4.3.7记录各项基本性能指标随贮存时间而变化的数据，被评估的沥青-橡胶结合料配比在6小时内其粘度的变化不应超过±500mPa·s，其它性能指标应保持基本不变，并符合本规程第4.3.9条规定的技术标准。表4.3.7沥青-橡胶结合料的粘度——时间特性记录基本性能指标单位反应时间（min）45或6090240360Haake粘度（180~190℃）mPa·S锥入度（25℃）0.1mm————回弹恢复（25℃）%————软化点（R&B）℃4.3.8经过稳定性验证的结合料配比，应作为设计配比供在沥青-橡胶结合料的实际生产中试用。在试生产的过程中以及在正式生产时均应通过实验室的性能检验。4.3.9在设计、试生产、正式生产过程中对沥青-橡胶结合料进行的性能测定应符合表4.3.9规定的技术标准，用于表面处治与封层时，在喷洒设备的条件容许时，其粘度宜选用高值。表4.3.9沥青-橡胶结合料的技术标准试验指标单位试验方法技术要求热拌沥青混合料表面处治与封层热区温区寒区旋转粘度（180~190℃）mPa·S附录A.21500~40001500~3000锥入度（25℃）0.1mm附录A.325~4040~5555~7040~55回弹恢复（25℃）%附录A.4≥30≥25≥20≥25软化点（R&B）℃JTGE20T0606≥65≥60≥50≥60注：旋转粘度应为哈克（Haake）粘度计测定的粘度。4.3.10沥青-橡胶结合料的生产宜采用批量式的生产工艺，工艺步骤与要求应符合下列规定：基质沥青的加热、升温，在加入橡胶屑之前基质沥青宜加热至190℃～210℃范围内；沥青、橡胶屑、添加剂的计量；3基质沥青与橡胶屑以及添加剂的预混，搅拌温度应控制在180℃～210℃的范围内，在搅拌过程中温度的变化不应超过±5℃；4橡胶屑在沥青中的融胀与反应；5反应的温度应保持在180℃～210℃的范围内，并应在规定的温度下保持45min～60min反应时间，贮存温度可降低至180℃4.3.11设计配比应通过试拌生产，并调整合格后确定为正式生产用的配比。4.3.12沥青-橡胶结合料的延期使用与再加热应符合下列规定：1制作好的成品结合料应即时投入使用，制作好的成品料在沥青混合料的生产过程中保持的时间不应超过6小时（在45min~60min的反应周期结束后），成品结合料在使用过程中的温度必须保持在180℃以上。2当沥青-橡胶结合料需延期使用超过4h时，应停止加热，让结合料自由冷却。再次启动使用时结合料的温度不得低于180℃，否则就必须重新加热，使其温度上升到180℃～210℃的范围内。3成品结合料持续贮存的时间不宜超过10h（在贮存期间内仍需不断地搅动），再加热的次数不应超过2次。当再次启动使用时，必须重新检验结合料的粘度，以验证其是否处于规定的范围内。4如果贮存时间较长（需过夜），再次加热重新使用时应适当添加额外的橡胶屑并在180℃～210℃的温度范围内搅拌和反应至少45min，并符合表4.3.9规定的技术标准。4.3.13沥青-橡胶结合料的生产质量控制应符合下列规定：1基质沥青、橡胶屑、添加剂等原材料应按本规程第4.1节的规定，经检验合格后方可投入生产。2设计好的沥青-橡胶结合料配比和工艺应在生产设备上通过试生产后，确定为正式生产用的配比和生产工艺。3试生产以及正式生产过程中，结合料质量标准均应符合本规程第4.3.9条规定的各项技术指标。4沥青-橡胶结合料的质量检验应按每批成品结合料进行，其检测项目应包括：旋转粘度、锥入度、回弹性、软化点等四项，并应符合表4.3.9规定的技术标准。5沥青-橡胶结合料在生产过程中检测的各项数据宜记录在专门的生产报表中。5路面结构组合设计5.1一般规定5.1.15.1.2橡胶沥青结构的设计参数、设计指标和要求、计算方法、厚度、层间结合料等应满足现行行业标准《公路沥青路面设计规范》JTGD50和《城镇道路路面设计规范》CJJ1695.1.3橡胶沥青路面5.2新建沥青混凝土路面5.2.1双层式沥青层结构分为上面层、下面层，三层式沥青面层结构分为上面层、中面层、下面层。上面层5.2.2橡胶沥青路面的沥青面层结构应根据使用功能和经济性的要求按表5.2.2表5.2.2橡胶沥青路面面层结构组合结构方案上面层中面层下面层三层式连续级配橡胶改性沥青混合料SMA橡胶改性沥青混合料S形级配悬浮密实型沥青-橡胶混合料骨架密实型沥青-橡胶混合料骨架空隙型沥青-橡胶混合料密级配沥青混合料密级配改性沥青混合料骨架填隙型改性沥青混合料连续级配橡胶改性沥青混合料骨架填隙型橡胶改性沥青混合料密级配沥青混合料密级配橡胶改性沥青混合料双层式连续级配橡胶改性沥青混合料SMA橡胶改性沥青混合料S形级配悬浮密实型沥青-橡胶混合料骨架密实型沥青-橡胶混合料骨架空隙型沥青-橡胶混合料密级配沥青混合料密级配改性沥青混合料骨架填隙型改性沥青混合料连续级配橡胶改性沥青混合料骨架填隙型橡胶改性沥青混合料5.2.3橡胶改性沥青混凝土的结构厚度可按现行行业规范的有关规定设计，各类沥青-橡胶混合料的结构厚度不宜大于6cm，橡胶沥青路面面层结构如图5.2.3所示a)三层式结构b)双层式结构图5.2.3橡胶沥青路面面层结构图5.3旧沥青路面养护维修罩面5.3.1橡胶沥青罩面可用于旧路面养护维修的表面磨耗层，薄层的橡胶沥青罩面可用作表面防水层，也可用于修复被磨光面层的抗滑能力。5.3.2旧沥青路面的养护维修罩面设计应先调查原有路面的破损情况，包括裂缝率、车辙深度、修补面积等，再根据破损情况确定对现状沥青路面的处理方式，然后加铺罩面。5.3.3原状路面的处理应根据破损情况遵循以下原则：1沥青路面完好则不需要处理；2弯沉偏大的软弱地段或出现松散和坑槽的地段，进行局部范围的全厚度修补；3沉陷变形或者需调整横坡的路段，铺设调平层；严重车辙、龟裂或波浪的路段，进行冷铣刨处理；4沥青路面存在轻微裂缝，应采用乳化沥青灌缝；5沥青路面存在面积较大的裂缝，或者车辙深度较大，则应将破损部分挖除，调查裂缝发生的成因，是面层本身、基层或土基，然后更换相应结构层后，加铺挖除的沥青层，分层碾压。5.3.4对破损路面处理后，应清洁道路表面、洒布粘层油、加铺罩面。5.3.5橡胶沥青罩面层宜采用单层细粒式沥青混合料，其混合料类型可按表5.2.2中的上面层选择，并符合本标准第5.2.2条的规定，旧路养护维修罩面结构如图5.3.5所示图5.3.55.3.6局部沉降或沉降不均匀引起纵坡和横坡变化的道路维修罩面1应设置调平层；2调平层应位于上面层下方；3应根据设计标高和整平后的现状地面标高之间的高差确定调平层的材料和厚度；4调平层材料宜选用细粒式、中粒式或粗粒式沥青混凝土，根据高差由小到大依次进行选择；5调平层厚度应满足压实厚度要求。5.4水泥路面改造加铺5.4.1确定加铺方案前，应对原有路面结构进行全面的检测评价，评价方式、现状水泥路面的处理及表面处理等应符合现行行业标准《公路沥青路面设计规范》JTGD50和《城镇道路路面设计规范》CJJ169的规定。5.4.2宜采用橡胶沥青应力吸收层或土工布、土工格栅等全幅路面铺设在水泥板上。土工布、土工格栅等土工合成材料的铺设范围应根据现状水泥路面的状况确定。5.4.3纵断面设计应满足最小加铺层数、排水、经济性等要求。5.4.4局部加宽时，应在加宽部分按照原状路面形式铺筑路面与原状路面接顺后对新旧水泥路面同时进行加铺，以保证路基强度的均匀性。新建水泥路面的路基处理，应满足规范要求。5.4.5局部沉降或沉降不均匀引起纵坡和横坡变化道路路面应设置调平层，并应符合下列规定：1调平层的层数和厚度应根据设计标高和原状路面标高之间的高差进行确定；2调平层宜为加铺层的底层，调平层的材料根据高差可采用沥青层、半刚性基层、柔性基层等材料；3调平层材料的厚度应满足压实厚度要求。5.4.6加铺材料的层数和厚度应根据原状路面破损情况和承载能力，考虑使用功能、经济性、两侧地台标高等因素确定，并应符合下列规定：1对原状路面评价等级优、良，总坏板率<10%的情况，可在对局部损坏采取更换破损混凝土板、修补开裂板块、基层局部处理、脱空板灌浆等措施处理后，直接加铺应力吸收层和1~2层沥青混凝土面层，沥青面层结构应按表5.4.6选择合理的混合料类型结构组合。上面层采用沥青-橡胶混合料时，其厚度不宜大于6cm，在按密级配沥青混合料确定的当量结构厚度的基础上，也可考虑适当减薄沥青面层的总厚度。表5.4.6混凝土路面直接加铺橡胶沥青面层结构组合结构方案调平层应力吸收层上面层下面层单层式密级配沥青混合料橡胶沥青石屑封层连续级配橡胶改性沥青混合料SMA橡胶改性沥青混合料S形级配悬浮密实型沥青-橡胶混合料骨架密实型沥青-橡胶混合料骨架空隙型沥青-橡胶混合料——双层式密级配沥青混合料橡胶沥青石屑封层连续级配橡胶改性沥青混合料SMA橡胶改性沥青混合料悬浮密实型沥青-橡胶混合料骨架密实型沥青-橡胶混合料骨架空隙型沥青-橡胶混合料密级配沥青混合料注：如原状路面平整度较好，可不设调平层。2对原状路面评价等级中等及中等以下，混凝土板破损严重，基层承载能力不足时，应采取补强措施，宜采用碎石化技术将混凝土板打碎、压实，然后加铺补强层。沥青面层的结构组合可按表5.4.6选用，当上面层采用沥青-橡胶混合料时，其厚度不宜大于6cm，水泥路面改造加铺设置应力吸收层的结构如图5.4.6所示。a)三层结构的应力吸收夹层罩面b)二层结构的应力吸收夹层罩面图5.4.5.5桥面铺装5.5.1橡胶沥青适用于混凝土桥面，混凝土桥面板应满足《公路沥青路面设计规范》（JTGD50）和《城镇道路路面设计规范》（CJJ169）的要求。5.5.2铺装结构中的双层结构适用于一级公路及以上等级的公路，次干路及以上等级的城市道路，中等交通以上的桥面铺装。5.5.3桥面铺装的上面层宜选用橡胶沥青混凝土，桥面铺装结构如图5.5.3。a)双层铺装结构图b)单层铺装结构图图5.5.3橡胶沥青混凝土用于桥面铺装的结构5.5.4对于特大桥梁或大跨度钢桥桥面橡胶沥青混凝土材料应进行单独设计。5.6隧道铺装5.6.1应满足《公路隧道设计规范》（JTGD70-2004）的要求。5.6.2隧道铺装的沥青上面层宜选用橡胶沥青混凝土。隧道铺装结构如图5.6.2所示。图5.6.2橡胶沥青混凝土用于隧道内路面的结构5.6.3特长隧道铺装橡胶沥青路面材料应进行单独设计。6混合料6．1配合比设计Ⅰ一般规定6.1.1各类橡胶沥青混合料的配合比设计除本章规定外，应符合现行行业规范《公路沥青路面施工技术规范》JTGF40的规定。Ⅱ连续级配橡胶改性沥青混合料（TRHMA-DG）6.1.2TRHMA-DG型混合料的矿料级配应满足均匀性和密水性的要求，并按表6.1.2-1连续级配橡胶改性沥青混合料级配范围来选择；混合料配合比的马歇尔设计方法应按现行行业标准《公路沥青路面施工技术规范》JTGF40规定的步骤进行，连续级配橡胶改性沥青混合料马歇尔试验配合比设计技术标准应符合表6.1.2-2的规定；连续级配改性沥青混合料性能检验技术要求应符合表6.1.2-3的规定，用于下面层的混合料可只做浸水马歇尔试验残留稳定度和渗水系数两项试验。表6.1.2-1连续级配橡胶改性沥青混合料级配范围混合料类型通过下列筛孔（mm）的质量百分率（%）26.5191613.29.54.752.361.180.60.30.150.075TRHMA-DG-25上限100908575634840312416127下限95806555432216128543中值97.585756553352821.51610.585TRHMA-DG-20上限1009285725847342618127下限9578654828181310743中值97.58575604332.523.51812.585TRHMA-DG-20C上限1009285725344322418127下限9578654823161210743中值97.58575603830221712.585TRHMA-DG-16上限10085684635292318138下限95654728181512864中值97.57557.53726.52217.5139.56TRHMA-DG-16C上限10090704435292318138下限95705026181512864中值97.580603526.52217.5139.56TRHMA-DG-13上限100804836292216118下限956026171510644中值97.5703726.52216117.56TRHMA-DG-13C上限100754535251714107下限95552415128553中值97.56534.52518.512.59.57.55注：TRHMA-DG-××C代号意义：TRHMA-DG为连续级配橡胶改性沥青混合料；××为公称最大粒径（mm）；C为粗粒式。表6.1.2-2连续级配橡胶改性沥青混合料马歇尔试验配合比设计技术标准试验指标单位技术要求击实次数(双面)次75试件尺寸mmφ101.6mm×63.5mm空隙率VV％4～6稳定度MS≥kN8流值FLmm2～5矿料间隙率VMA(％）≥设计空隙率(％)下列混合料VMA技术要求(％)AC-25GAC-20，AC-20GCAC-13G，AC-13GC3111213412131451314156141516沥青饱和度VFA(％)65～75注：当设计空隙率不是整数时，由内插法确定所要求的VMA最小值。表6.1.2-3连续级配改性沥青混合料性能检验技术要求试验项目技术要求试验方法按5000至10000次区间计算的动稳定度10000次后车辙深度车辙试验（60℃空气介质）≥4000次/mm≤4.5mm附录F水稳定性：浸水马歇尔试验残留稳定度冻融劈裂试验残留强度比≥85%≥80%JTGE20T0709JTGE20T0729渗水系数≤120ml/minJTGE20T0730低温弯曲试验应变寒区温区热区JTGE20T0715≥3000με≥2800με≥2500με注：气候分区按最低月平均气温确定：寒区＜-10℃；温区-10℃~0℃ⅢSMA橡胶改性沥青混合料（TRSMA）6.1.3TRSMA型混合料的矿料级配应满足粗集料骨架嵌挤结构的要求，并按表6.1.3-1SMA橡胶改性沥青混合料级配范围来选择，粗集料骨架分界筛孔尺寸应符合表6.1.3-2的规定；混合料配合比的马歇尔试件体积设计方法应按现行行业标准《公路沥青路面施工技术规范》JTGF40规定的步骤进行，其初选的结合料用量宜根据矿料的合成毛体积相对密度按表6.1.3-3取相应的初选结合料用量，混合料中是否需要添加纤维应由结合料的析漏率指标决定，SMA橡胶改性沥青混合料马歇尔试验配合比设计技术标准应符合表6.1.3-4的规定；SMA改性沥青混合料性能检验技术要求应符合表6.1.3-5的规定。表6.1.3-1SMA橡胶改性沥青混合料级配范围混合料类型通过下列筛孔（mm）的质量百分率（%）26.5191613.29.54