DB43/T 2140-2021 乳化沥青厂拌冷再生路面施工与验收技术规范

ICS93.080.01

CCSP66

43

湖南省地方标准

DB43/T2140—2021

乳化沥青厂拌冷再生路面施工与验收

技术规范

Technicalspecificationforconstructionandacceptance

ofcoldin-plantrecyclingpavementwithemulsifiedasphalt

2021-08-03发布2021-10-03实施

湖南省市场监督管理局发布

DB43/T2140—2021

目次

前言························································································································Ⅲ

1范围·····················································································································1

2规范性引用文件······································································································1

3术语和定义············································································································1

4符号·····················································································································2

5原路面调查及评价···································································································3

5.1一般规定·········································································································3

5.2原路面技术状况检查和评价·················································································3

6材料·····················································································································3

6.1一般规定·········································································································3

6.2RAP·················································································································3

6.3乳化沥青·········································································································4

6.4集料···············································································································5

6.5水泥···············································································································5

6.6矿粉···············································································································5

6.7水··················································································································6

7再生沥青混合料配合比设计·······················································································6

7.1一般规定·········································································································6

7.2混合料技术要求································································································6

7.3混合料级配要求································································································6

7.4混合料配合比设计方法·······················································································7

8乳化沥青冷再生路面施工··························································································7

8.1一般规定·········································································································7

8.2冷再生沥青混合料施工设备·················································································7

8.3RAP的回收、预处理与堆放··················································································9

8.4施工准备·········································································································9

8.5沥青混合料拌和································································································9

8.6运输···············································································································9

8.7摊铺·············································································································10

8.8压实·············································································································10

8.9养生及开放交通······························································································11

8.10透层、黏层、封层施工···················································································11

9质量管理与检查验收······························································································11

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DB43/T2140—2021

9.1一般规定·······································································································11

9.2质量管理·······································································································11

9.3检查验收·······································································································13

附录A（规范性）RAP取样与试验分析·········································································14

A.1现场取样·······································································································14

A.2拌和场料堆取样······························································································14

A.3试样缩分·······································································································14

A.4RAP评价········································································································14

附录B（规范性）乳化沥青冷再生沥青混合料配合比设计················································16

B.1工程级配设计范围···························································································16

B.2材料的选择与准备···························································································16

B.3配合比设计流程······························································································16

B.4级配设计·······································································································17

B.5试件成型·······································································································17

B.6确定最佳含水率······························································································17

B.7确定最佳乳化沥青含量·····················································································17

B.8延迟试验·······································································································18

B.9配合比设计报告······························································································18

附录C（规范性）乳化沥青微粒粒径检测方法（激光粒度分析仪法）·································19

C.1目的与适用范围······························································································19

C.2仪具与材料····································································································19

C.3方法与步骤····································································································19

C.4报告·············································································································19

C.5允许误差·······································································································20

II

DB43/T2140—2021

前言

本文件按照GB/T1.1—2020《标准化工作导则第1部分：标准化文件的结构和起草规则》的规

定起草。

请注意本文件的某些内容可能涉及专利。本文件的发布机构不承担识别专利的责任。

本文件由湖南省交通运输厅提出并归口。

本文件起草单位：湖南省交通科学研究院有限公司、湖南云中再生科技股份有限公司、湖南省交通

建设质量安全监督管理局、湖南大学、湖南省交通水利建设集团有限公司、湖南省交通建设工程监理有

限公司、湖南省交通建设质量监督检测有限公司、长沙理工大学、长沙市公路桥梁建设有限责任公司、

湖南高速养护工程有限公司、湖南云景建设有限责任公司、湖南交通国际经济工程合作有限公司、湖南

省通和工程有限公司。

本文件主要起草人：钟梦武、虢曙安、吴超凡、刘山建、张恒龙、姚志立、张剑波、钱国平、胡红

波、罗泽文、孙艳华、吴初平、徐朔、吴恙、叶青、彭红卫、李泉、郑祖恩、韩庆奎、肖杰、朱沅峰、

陈宇亮、张继森、万暑、黄斌、钟立昌、张允宝、李珍贵、孟凡威、丁俊剑、王为、刘小金、周艺、任

晃、张格、蒋岳楼、喻胜强、张科、贺杰军。

III

DB43/T2140—2021

IV

DB43/T2140—2021

乳化沥青厂拌冷再生路面施工与验收技术规范

1范围

本文件规定了乳化沥青厂拌冷再生路面施工与验收技术的原路面调查及评价、材料、再生沥青混合

料配合比设计、乳化沥青冷再生路面施工、质量管理与检查验收的要求。

本文件适用于乳化沥青厂拌冷再生沥青路面工程。根据技术要求的不同，乳化沥青冷再生沥青混合

料可用于各类道路的底基层和基层，也可用于重交通荷载等级及以下公路和城镇道路的中、下沥青面层。

本文件可供设计、生产、施工、监理、咨询及建设单位参考。

2规范性引用文件

下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。其中，注日期的引用文件，仅

该日期对应的版本适用于本文件；不注日期的引用文件，其最新版本（包括所有的修改单）适用于本文件。

GB175通用硅酸盐水泥

CJJ1城镇道路工程施工与质量验收规范

JGJ63混凝土用水标准

JTG3450公路路基路面现场测试规程

JTG5210公路技术状况评定标准

JTG/T5521公路沥青路面再生技术规范

JTGE20公路工程沥青及沥青混合料试验规程

JTG3430公路土工试验规程

JTGE42公路工程集料试验规程

JTGF40公路沥青路面施工技术规范

JTGF80/1公路工程质量检验评定标准

3术语和定义

下列术语和定义适用于本文件。

3.1

沥青混合料回收料reclaimedasphaltpavement（RAP）

采用铣刨、开挖等方式从沥青路面上获得的旧沥青混合料。

[来源：JTG/T5521—2019，2.1.1]

3.2

乳化沥青emulsifiedasphalt

石油沥青与水在乳化剂、稳定剂等作用下，经乳化加工制得的水包油状的均匀沥青乳液。

[来源：JTGF4O—2004，2.1.2，有修改]

3.3

乳化沥青厂拌冷再生coldcentralplantrecyclingwithemulsifiedasphalt

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DB43/T2140—2021

将RAP运至拌和厂（场、站），经破碎、筛分，以一定比例的RAP与新集料、乳化沥青、矿粉、水

泥、水等进行常温拌和，铺筑形成路面结构层的沥青路面施工技术。

[来源：JTG/T5521—2019，2.1.8，有修改]

3.4

乳化沥青冷再生混合料emulsifiedasphaltcoldrecycledmixture

用乳化沥青、RAP、新的集料与矿粉、水泥、水等按一定比例常温拌和所形成的具有连续密级配的

沥青混合料。

3.5

RAP级配gradationofRAP

将预处理后的RAP样品烘干至恒重后，进行筛分测得的级配。

3.6

RAP矿料级配gradationofmineralaggregateinRAP

用抽提或燃烧法除去RAP中的沥青材料后，进行水洗筛分测得的矿料级配。

3.7

再生沥青混合料级配gradationofrecycledmixture

RAP与新矿料的合成级配。

3.8

再生沥青混合料矿料级配gradationofmineralaggregateinrecycledmixture

指RAP中的矿料与新矿料合成后的矿料级配。

3.9

RAP掺配比percentageofRAPinrecycledmixture

RAP的烘干质量占RAP与新加矿料总的烘干质量的百分比。

3.10

最佳含水率optimumwatercontent

乳化沥青冷再生混合料在最大干密度时水的质量与混合料烘干质量的百分比。

3.11

添加剂additiveagent

在乳化沥青冷再生混合料中用以提高集料与沥青的黏附性、调节乳化沥青破乳时间等作用的各类物

质的总称。

3.12

延迟时间delaytime

乳化沥青冷再生混合料从拌和完成后，在25℃气温下每隔一定时间成型标准劈裂试件，其密度与

劈裂强度损失均不超过5％的最大时间间隔。

4符号

下列符号适用于本文件。

DS动稳定度

E25恩格拉黏度

H延迟时间

OEC最佳乳化沥青用量

OWC最佳含水率

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DB43/T2140—2021

TSR冻融劈裂强度比

νs赛波特黏度

5原路面调查及评价

5.1一般规定

乳化沥青厂拌冷再生工程在实施前应对原道路等级、修建时间、路面结构、路面材料、养护维修历

史等信息与原路面技术状况、交通流量、轴载分布等内容进行调查、检测，按JTG5210进行评价，验

证设计文件采用乳化沥青厂拌冷再生方案的可行性。

5.2原路面技术状况检查和评价

应通过以下调查与检测，并进行数据分析，评估其结果是否符合设计要求，当评估结果与设计要求

不符时，应申请设计方案变更。

a）调查待再生路段的路面损坏状况，包括但不限于路面损坏的类型、位置、形态、破损等级等。

b）路面内部结构状况检测，包括但不限于结构损坏类型、病害层位、病害等级、层间粘结状况、

结构层材料性能指标等。

c）路基路面排水状况检测，包括路表排水设施状况、路面结构内部排水状况、地下水排水状

况等。

d）路面技术指标检测，包括路面损坏状况指数PCI、路面结构强度指数PSSI、路面行驶质量指数

RQI、路面抗滑性能指数SRI、路面车辙深度指数RDI等。

e）再生层的下承层当量回弹模量、表面裂缝及分布情况等检测。

6材料

6.1一般规定

6.1.1用于乳化沥青厂拌冷再生混合料的原材料有：RAP、乳化沥青、集料、水泥、矿粉、水和添加剂

等。

6.1.2各种材料运至拌和场后应进行质量检验，经评定合格后方可使用。

6.2RAP

6.2.1RAP应经过预处理后方可使用，预处理方法应符合本文件8.3的相关规定。

6.2.2RAP的有关技术指标应按表1的要求进行检测，RAP的取样与试验分析方法应符合本文件附录A

的相关规定。

表1RAP检测项目与质量要求

材料检测项目技术要求试验方法

含水率

≤3

％

RAPRAP级配实测本文件附录A

RAP矿料级配实测

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DB43/T2140—2021

表1RAP检测项目与质量要求（续）

材料检测项目技术要求试验方法

沥青含量

实测

％

RAP本文件附录A

砂当量

≥50（/60a）

％

针入度（25℃）

实测JTGE20，T0604

0.1mm

延度（15℃）

RAP中的沥青实测JTGE20，T0605

cm

软化点

实测JTGE20，T0606

℃

针片状颗粒含量≥9.5mm≤12

JTGE42，T0312

％＜9.5mm≤18

表观相对密度≥2.5JTGE42，T0304

RAP中的粗集料吸水率

≤3JTGE42，T0304

％

与沥青的黏附性

≥4JTGE20，T0616

级

压碎值

≤26JTGE42，T0316

％

表观相对密度≥2.5