DB43-T 2140-2021乳化瀝青廠拌冷再生路面施工與驗(yàn)收技術(shù)規(guī)范

ICS93.080.01

CCSP66

43

湖南省地方標(biāo)準(zhǔn)

DB43/T2140—2021

乳化瀝青廠拌冷再生路面施工與驗(yàn)收

技術(shù)規(guī)范

Technicalspecificationforconstructionandacceptance

ofcoldin-plantrecyclingpavementwithemulsifiedasphalt

2021-08-03發(fā)布2021-10-03實(shí)施

湖南省市場監(jiān)督管理局發(fā)布

DB43/T2140—2021

目次

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

1范圍·····················································································································1

2規(guī)范性引用文件······································································································1

3術(shù)語和定義············································································································1

4符號·····················································································································2

5原路面調(diào)查及評價···································································································3

5.1一般規(guī)定·········································································································3

5.2原路面技術(shù)狀況檢查和評價·················································································3

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

6.1一般規(guī)定·········································································································3

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

6.3乳化瀝青·········································································································4

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

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

6.6礦粉···············································································································5

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

7再生瀝青混合料配合比設(shè)計(jì)·······················································································6

7.1一般規(guī)定·········································································································6

7.2混合料技術(shù)要求································································································6

7.3混合料級配要求································································································6

7.4混合料配合比設(shè)計(jì)方法·······················································································7

8乳化瀝青冷再生路面施工··························································································7

8.1一般規(guī)定·········································································································7

8.2冷再生瀝青混合料施工設(shè)備·················································································7

8.3RAP的回收、預(yù)處理與堆放··················································································9

8.4施工準(zhǔn)備·········································································································9

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

8.6運(yùn)輸···············································································································9

8.7攤鋪·············································································································10

8.8壓實(shí)·············································································································10

8.9養(yǎng)生及開放交通······························································································11

8.10透層、黏層、封層施工···················································································11

9質(zhì)量管理與檢查驗(yàn)收······························································································11

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DB43/T2140—2021

9.1一般規(guī)定·······································································································11

9.2質(zhì)量管理·······································································································11

9.3檢查驗(yàn)收·······································································································13

附錄A（規(guī)范性）RAP取樣與試驗(yàn)分析·········································································14

A.1現(xiàn)場取樣·······································································································14

A.2拌和場料堆取樣······························································································14

A.3試樣縮分·······································································································14

A.4RAP評價········································································································14

附錄B（規(guī)范性）乳化瀝青冷再生瀝青混合料配合比設(shè)計(jì)················································16

B.1工程級配設(shè)計(jì)范圍···························································································16

B.2材料的選擇與準(zhǔn)備···························································································16

B.3配合比設(shè)計(jì)流程······························································································16

B.4級配設(shè)計(jì)·······································································································17

B.5試件成型·······································································································17

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

B.7確定最佳乳化瀝青含量·····················································································17

B.8延遲試驗(yàn)·······································································································18

B.9配合比設(shè)計(jì)報(bào)告······························································································18

附錄C（規(guī)范性）乳化瀝青微粒粒徑檢測方法（激光粒度分析儀法）·································19

C.1目的與適用范圍······························································································19

C.2儀具與材料····································································································19

C.3方法與步驟····································································································19

C.4報(bào)告·············································································································19

C.5允許誤差·······································································································20

II

DB43/T2140—2021

前言

本文件按照GB/T1.1—2020《標(biāo)準(zhǔn)化工作導(dǎo)則第1部分：標(biāo)準(zhǔn)化文件的結(jié)構(gòu)和起草規(guī)則》的規(guī)

定起草。

請注意本文件的某些內(nèi)容可能涉及專利。本文件的發(fā)布機(jī)構(gòu)不承擔(dān)識別專利的責(zé)任。

本文件由湖南省交通運(yùn)輸廳提出并歸口。

本文件起草單位：湖南省交通科學(xué)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

建設(shè)質(zhì)量安全監(jiān)督管理局、湖南大學(xué)、湖南省交通水利建設(shè)集團(tuán)有限公司、湖南省交通建設(shè)工程監(jiān)理有

限公司、湖南省交通建設(shè)質(zhì)量監(jiān)督檢測有限公司、長沙理工大學(xué)、長沙市公路橋梁建設(shè)有限責(zé)任公司、

湖南高速養(yǎng)護(hù)工程有限公司、湖南云景建設(shè)有限責(zé)任公司、湖南交通國際經(jīng)濟(jì)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：鐘夢武、虢曙安、吳超凡、劉山建、張恒龍、姚志立、張劍波、錢國平、胡紅

波、羅澤文、孫艷華、吳初平、徐朔、吳恙、葉青、彭紅衛(wèi)、李泉、鄭祖恩、韓慶奎、肖杰、朱沅峰、

陳宇亮、張繼森、萬暑、黃斌、鐘立昌、張?jiān)蕦?、李珍貴、孟凡威、丁俊劍、王為、劉小金、周藝、任

晃、張格、蔣岳樓、喻勝強(qiáng)、張科、賀杰軍。

III

DB43/T2140—2021

乳化瀝青廠拌冷再生路面施工與驗(yàn)收技術(shù)規(guī)范

1范圍

本文件規(guī)定了乳化瀝青廠拌冷再生路面施工與驗(yàn)收技術(shù)的原路面調(diào)查及評價、材料、再生瀝青混合

料配合比設(shè)計(jì)、乳化瀝青冷再生路面施工、質(zhì)量管理與檢查驗(yàn)收的要求。

本文件適用于乳化瀝青廠拌冷再生瀝青路面工程。根據(jù)技術(shù)要求的不同，乳化瀝青冷再生瀝青混合

料可用于各類道路的底基層和基層，也可用于重交通荷載等級及以下公路和城鎮(zhèn)道路的中、下瀝青面層。

本文件可供設(shè)計(jì)、生產(chǎn)、施工、監(jiān)理、咨詢及建設(shè)單位參考。

2規(guī)范性引用文件

下列文件中的內(nèi)容通過文中的規(guī)范性引用而構(gòu)成本文件必不可少的條款。其中，注日期的引用文件，僅

該日期對應(yīng)的版本適用于本文件；不注日期的引用文件，其最新版本（包括所有的修改單）適用于本文件。

GB175通用硅酸鹽水泥

CJJ1城鎮(zhèn)道路工程施工與質(zhì)量驗(yàn)收規(guī)范

JGJ63混凝土用水標(biāo)準(zhǔn)

JTG3450公路路基路面現(xiàn)場測試規(guī)程

JTG5210公路技術(shù)狀況評定標(biāo)準(zhǔn)

JTG/T5521公路瀝青路面再生技術(shù)規(guī)范

JTGE20公路工程瀝青及瀝青混合料試驗(yàn)規(guī)程

JTG3430公路土工試驗(yàn)規(guī)程

JTGE42公路工程集料試驗(yàn)規(guī)程

JTGF40公路瀝青路面施工技術(shù)規(guī)范

JTGF80/1公路工程質(zhì)量檢驗(yàn)評定標(biāo)準(zhǔn)

3術(shù)語和定義

下列術(shù)語和定義適用于本文件。

3.1

瀝青混合料回收料reclaimedasphaltpavement（RAP）

采用銑刨、開挖等方式從瀝青路面上獲得的舊瀝青混合料。

[來源：JTG/T5521—2019，2.1.1]

3.2

乳化瀝青emulsifiedasphalt

石油瀝青與水在乳化劑、穩(wěn)定劑等作用下，經(jīng)乳化加工制得的水包油狀的均勻?yàn)r青乳液。

[來源：JTGF4O—2004，2.1.2，有修改]

3.3

乳化瀝青廠拌冷再生coldcentralplantrecyclingwithemulsifiedasphalt

1

DB43/T2140—2021

將RAP運(yùn)至拌和廠（場、站），經(jīng)破碎、篩分，以一定比例的RAP與新集料、乳化瀝青、礦粉、水

泥、水等進(jìn)行常溫拌和，鋪筑形成路面結(jié)構(gòu)層的瀝青路面施工技術(shù)。

[來源：JTG/T5521—2019，2.1.8，有修改]

3.4

乳化瀝青冷再生混合料emulsifiedasphaltcoldrecycledmixture

用乳化瀝青、RAP、新的集料與礦粉、水泥、水等按一定比例常溫拌和所形成的具有連續(xù)密級配的

瀝青混合料。

3.5

RAP級配gradationofRAP

將預(yù)處理后的RAP樣品烘干至恒重后，進(jìn)行篩分測得的級配。

3.6

RAP礦料級配gradationofmineralaggregateinRAP

用抽提或燃燒法除去RAP中的瀝青材料后，進(jìn)行水洗篩分測得的礦料級配。

3.7

再生瀝青混合料級配gradationofrecycledmixture

RAP與新礦料的合成級配。

3.8

再生瀝青混合料礦料級配gradationofmineralaggregateinrecycledmixture

指RAP中的礦料與新礦料合成后的礦料級配。

3.9

RAP摻配比percentageofRAPinrecycledmixture

RAP的烘干質(zhì)量占RAP與新加礦料總的烘干質(zhì)量的百分比。

3.10

最佳含水率optimumwatercontent

乳化瀝青冷再生混合料在最大干密度時水的質(zhì)量與混合料烘干質(zhì)量的百分比。

3.11

添加劑additiveagent

在乳化瀝青冷再生混合料中用以提高集料與瀝青的黏附性、調(diào)節(jié)乳化瀝青破乳時間等作用的各類物

質(zhì)的總稱。

3.12

延遲時間delaytime

乳化瀝青冷再生混合料從拌和完成后，在25℃氣溫下每隔一定時間成型標(biāo)準(zhǔn)劈裂試件，其密度與

劈裂強(qiáng)度損失均不超過5％的最大時間間隔。

4符號

下列符號適用于本文件。

DS動穩(wěn)定度

E25恩格拉黏度

H延遲時間

OEC最佳乳化瀝青用量

OWC最佳含水率

2

DB43/T2140—2021

TSR凍融劈裂強(qiáng)度比

νs賽波特黏度

5原路面調(diào)查及評價

5.1一般規(guī)定

乳化瀝青廠拌冷再生工程在實(shí)施前應(yīng)對原道路等級、修建時間、路面結(jié)構(gòu)、路面材料、養(yǎng)護(hù)維修歷

史等信息與原路面技術(shù)狀況、交通流量、軸載分布等內(nèi)容進(jìn)行調(diào)查、檢測，按JTG5210進(jìn)行評價，驗(yàn)

證設(shè)計(jì)文件采用乳化瀝青廠拌冷再生方案的可行性。

5.2原路面技術(shù)狀況檢查和評價

應(yīng)通過以下調(diào)查與檢測，并進(jìn)行數(shù)據(jù)分析，評估其結(jié)果是否符合設(shè)計(jì)要求，當(dāng)評估結(jié)果與設(shè)計(jì)要求

不符時，應(yīng)申請?jiān)O(shè)計(jì)方案變更。

a）調(diào)查待再生路段的路面損壞狀況，包括但不限于路面損壞的類型、位置、形態(tài)、破損等級等。

b）路面內(nèi)部結(jié)構(gòu)狀況檢測，包括但不限于結(jié)構(gòu)損壞類型、病害層位、病害等級、層間粘結(jié)狀況、

結(jié)構(gòu)層材料性能指標(biāo)等。

c）路基路面排水狀況檢測，包括路表排水設(shè)施狀況、路面結(jié)構(gòu)內(nèi)部排水狀況、地下水排水狀

況等。

d）路面技術(shù)指標(biāo)檢測，包括路面損壞狀況指數(shù)PCI、路面結(jié)構(gòu)強(qiáng)度指數(shù)PSSI、路面行駛質(zhì)量指數(shù)

RQI、路面抗滑性能指數(shù)SRI、路面車轍深度指數(shù)RDI等。

e）再生層的下承層當(dāng)量回彈模量、表面裂縫及分布情況等檢測。

6材料

6.1一般規(guī)定

6.1.1用于乳化瀝青廠拌冷再生混合料的原材料有：RAP、乳化瀝青、集料、水泥、礦粉、水和添加劑

等。

6.1.2各種材料運(yùn)至拌和場后應(yīng)進(jìn)行質(zhì)量檢驗(yàn)，經(jīng)評定合格后方可使用。

6.2RAP

6.2.1RAP應(yīng)經(jīng)過預(yù)處理后方可使用，預(yù)處理方法應(yīng)符合本文件8.3的相關(guān)規(guī)定。

6.2.2RAP的有關(guān)技術(shù)指標(biāo)應(yīng)按表1的要求進(jìn)行檢測，RAP的取樣與試驗(yàn)分析方法應(yīng)符合本文件附錄A

的相關(guān)規(guī)定。

表1RAP檢測項(xiàng)目與質(zhì)量要求

材料檢測項(xiàng)目技術(shù)要求試驗(yàn)方法

含水率

≤3

％

RAPRAP級配實(shí)測本文件附錄A

RAP礦料級配實(shí)測

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表1RAP檢測項(xiàng)目與質(zhì)量要求（續(xù)）

材料檢測項(xiàng)目技術(shù)要求試驗(yàn)方法

瀝青含量

實(shí)測

％

RAP本文件附錄A

砂當(dāng)量

≥50（/60a）

％

針入度（25℃）

實(shí)測JTGE20，T0604

0.1mm

延度（15℃）

RAP中的瀝青實(shí)測JTGE20，T0605

cm

軟化點(diǎn)

實(shí)測JTGE20，T0606

℃

針片狀顆粒含量≥9.5mm≤12

JTGE42，T0312

％＜9.5mm≤18

表觀相對密度≥2.5JTGE42，T0304

RAP中的粗集料吸水率

≤3JTGE42，T0304

％

與瀝青的黏附性

≥4JTGE20，T0616

級

壓碎值

≤26JTGE42，T0316

％

表觀相對密度≥2.5JTGE42，T0328

砂當(dāng)量

≥60JTGE42，T0334

RAP中的細(xì)集料％

棱角性

≥30JTGE42，T0345

s

注：本文件規(guī)定，進(jìn)行冷再生瀝青混合料的級配設(shè)計(jì)時，既考慮RAP的級配，又考慮RAP的礦料級配（具體解釋見

附錄B），因此檢測項(xiàng)目中增加了礦料級配項(xiàng)目。

a當(dāng)乳化瀝青廠拌冷再生瀝青混合料用于瀝青路面的中、下面層結(jié)構(gòu)層時，RAP的砂當(dāng)量應(yīng)提高到不小于60％，

以保證再生瀝青混合料的綜合性能。

6.3乳化瀝青

6.3.1乳化瀝青性能應(yīng)符合表2的規(guī)定。

表2冷再生用乳化瀝青技術(shù)要求

檢測項(xiàng)目技術(shù)要求試驗(yàn)方法

破乳速度慢裂JTGE20，T0658

粒子電荷陽離子（+）或非離子JTGE20，T0653

篩上殘留物（1.18mm篩）

≤0.1JTGE20，T0652

％

恩格拉黏度E252～28JTGE20，T0622

黏度a

賽波特黏度νs（25℃）

7～100JTGE20，T0623

s

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表2冷再生用乳化瀝青技術(shù)要求（續(xù)）

檢測項(xiàng)目技術(shù)要求試驗(yàn)方法

殘留物含量

≥60JTGE20，T0651

％

溶解度

≥97.5JTGE20，T0607

％

針入度（25℃）

蒸發(fā)殘留物50～90JTGE20，T0604

0.1mm

延度（15℃）

≥60.0JTGE20，T0605

cm

軟化點(diǎn)

≥44JTGE20，T0606

℃

與粗集料的黏附性，裹覆面積≥2/3JTGE20，T0654

與粗、細(xì)集料拌和試驗(yàn)均勻JTGE20，T0659

1d

≤1

常溫儲存％

JTGE20，T0655

穩(wěn)定性5d

≤5

％

平均粒徑D（4,3）

≤3本文件附錄C

μm

乳化瀝青中瀝青微粒粒徑b

D85粒徑

≤5本文件附錄C

μm

a恩格拉黏度與賽波特黏度指標(biāo)任選其一檢測。

b當(dāng)乳化瀝青廠拌冷再生瀝青混合料用于瀝青路面的中、下面層結(jié)構(gòu)層時，為保證再生瀝青混合料的均勻性、高

溫穩(wěn)定性與抗剪強(qiáng)度，乳化瀝青中的瀝青微粒粒徑應(yīng)符合本表中的技術(shù)要求，用于其他結(jié)構(gòu)層時，乳化瀝青中

的瀝青微粒粒徑可不做強(qiáng)制要求。

6.3.2乳化瀝青應(yīng)根據(jù)新礦料和RAP及使用條件選擇。初步確定再生瀝青混合料的合成級配后，通過

RAP、新礦料與乳化瀝青的拌和試驗(yàn)、再生瀝青混合料劈裂強(qiáng)度試驗(yàn)等進(jìn)行乳化瀝青配伍性設(shè)計(jì)。

6.3.3乳化瀝青使用溫度宜為30℃～60℃。

6.3.4在乳化瀝青冷再生瀝青混合料中，乳化瀝青蒸發(fā)殘留物占再生瀝青混合料其余部分干質(zhì)量的百

分比宜為1.8％～3.6％。

6.3.5乳化瀝青貯存期間不應(yīng)離析、凍結(jié)、破乳，宜保持適當(dāng)攪拌（攪拌轉(zhuǎn)速不宜超過30rpm）。

6.4集料

外摻新的粗、細(xì)集料質(zhì)量應(yīng)符合JTGF40的相關(guān)規(guī)定。單一粗、細(xì)集料不滿足要求，但集料混合料

級配與性能滿足要求的，可以使用。

6.5水泥

宜采用普通硅酸鹽水泥，水泥初凝時間應(yīng)在3h（宜4h）以上、終凝時間在6h以上且在10h

以下，不應(yīng)使用快硬水泥、早強(qiáng)水泥。水泥應(yīng)疏松、干燥，無聚團(tuán)、結(jié)塊、受潮變質(zhì)。水泥的其他技術(shù)

指標(biāo)應(yīng)符合GB175的規(guī)定。水泥摻量不應(yīng)超過再生瀝青混合料中RAP與新加礦料總量的1.8％。

6.6礦粉

礦粉質(zhì)量應(yīng)符合JTGF40的相關(guān)規(guī)定。

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6.7水

水應(yīng)符合JGJ63的相關(guān)規(guī)定。

7再生瀝青混合料配合比設(shè)計(jì)

7.1一般規(guī)定

7.1.1應(yīng)根據(jù)工程要求、交通荷載等級、使用層位、氣候條件，選用滿足要求的材料，進(jìn)行再生瀝青

混合料配合比設(shè)計(jì)。

7.1.2本文件采用修訂的馬歇爾試驗(yàn)方法進(jìn)行乳化瀝青廠拌冷再生瀝青混合料的配合比設(shè)計(jì)。配合比

設(shè)計(jì)應(yīng)按目標(biāo)配合比設(shè)計(jì)、生產(chǎn)配合比設(shè)計(jì)、生產(chǎn)配合比驗(yàn)證三個階段進(jìn)行。

7.1.3有條件的情況下可采用旋轉(zhuǎn)壓實(shí)儀進(jìn)行冷再生瀝青混合料配合比設(shè)計(jì)，但壓實(shí)參數(shù)、技術(shù)要求

等需要通過試驗(yàn)論證確定。

7.2混合料技術(shù)要求

乳化瀝青廠拌冷再生瀝青混合料的設(shè)計(jì)技術(shù)要求應(yīng)符合表3的規(guī)定。

表3乳化瀝青廠拌冷再生瀝青混合料設(shè)計(jì)技術(shù)要求

使用層位

試驗(yàn)項(xiàng)目試驗(yàn)方法

底基層/基層下面層中面層

馬歇爾試件尺寸中、細(xì)粒式φ101.6×63.5

-

mm粗粒式φ152.4×95.3

馬歇爾試件雙面中、細(xì)粒式50+25

各擊實(shí)次數(shù)JTGE20，T0702

次粗粒式75+37

空隙率JTGE20，T0705、

8～138～12

％T0706、T0707

劈裂強(qiáng)度

≥0.5≥0.6≥0.7

MPa

劈裂強(qiáng)度（15℃）JTGE20，T0716

干濕劈裂強(qiáng)度比

≥75≥80

％

馬歇爾穩(wěn)定度≥5.0≥6.0

JTGE20，T0709

kN

馬歇爾穩(wěn)定度（40℃）≥7.5≥9.0

浸水馬歇爾殘留穩(wěn)定度比

≥75≥80JTGE20，T0709

％

凍融劈裂強(qiáng)度比TSR

≥70≥75JTGE20，T0729

％

動穩(wěn)定度（60℃）aJTGE20，T0703、

≥1000≥2000≥2500

次/mmT0719

注：原則上以劈裂強(qiáng)度作為設(shè)計(jì)要求，也可同時以劈裂強(qiáng)度和馬歇爾穩(wěn)定度雙指標(biāo)作為設(shè)計(jì)要求。

a按T0703輪碾法成型80mm厚（粗粒式）或50mm厚（中粒式與細(xì)粒式）的冷再生瀝青混合料車轍板塊試件，碾

壓完成后迅速將試件放入60℃±2℃鼓風(fēng)恒溫烘箱中烘干至恒重（一般為48h），再按T0719試驗(yàn)規(guī)程進(jìn)行動

穩(wěn)定度試驗(yàn)，試驗(yàn)前試件恒溫時間為8h～10h。

7.3混合料級配要求

7.3.1乳化瀝青冷再生瀝青混合料用于底基層、基層時，冷再生瀝青混合料級配應(yīng)符合表4中的再生

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DB43/T2140—2021

瀝青混合料級配范圍要求；當(dāng)冷再生瀝青混合料用于瀝青中、下面層時，再生瀝青混合料級配與再生瀝

青混合料礦料級配均應(yīng)符合表4中相應(yīng)級配范圍要求。

7.3.2乳化瀝青冷再生瀝青混合料用于底基層、基層時，宜選用粗粒式級配。用于重交通荷載等級公

路或城鎮(zhèn)道路的中、下面層時，宜選用粗粒式、中粒式級配；用于重交通荷載等級以下公路或城鎮(zhèn)道路

的中、下面層時，可選用粗粒式、中粒式或細(xì)粒式級配。

表4乳化瀝青廠拌冷再生瀝青混合料級配范圍要求

通過下列方孔篩篩孔（mm）的質(zhì)量百分率

級配類型％

31.526.5191613.29.54.752.360.30.075

再生瀝青混合

10086～100--55～72-25～4819～393～151～7

粗料級配

粒

再生瀝青混合

式10090～10078～9069～8360～7645～6530～5020～404～172～8

料礦料級配

再生瀝青混合

-10088～100--50～6632～5020～403～152～8

中料級配

粒

再生瀝青混合

式-10090～10078～9265～8056～7237～5224～424～163～9

料礦料級配

再生瀝青混合

細(xì)--100-80～9060～7644～6127～456～202～9

粒料級配

式再生瀝青混合

--10090～10083～9567～8250～6530～498～224～10

A料礦料級配

再生瀝青混合

細(xì)----10090～10060～8035～656～252～9

粒料級配

式再生瀝青混合

----10090～10070～8545～6710～264～10

B料礦料級配

7.4混合料配合比設(shè)計(jì)方法

乳化瀝青廠拌冷再生瀝青混合料配合比設(shè)計(jì)方法參見本文件附錄B。

8乳化瀝青冷再生路面施工

8.1一般規(guī)定

8.1.1雨天不應(yīng)施工；路面滯水時應(yīng)暫停施工。

8.1.2氣溫低于15℃時不宜施工；氣溫低于10℃時不應(yīng)施工。

8.1.3施工前，應(yīng)確認(rèn)再生層的下承層技術(shù)指標(biāo)符合設(shè)計(jì)要求，攤鋪冷再生瀝青混合料之前，宜在下

承層表面噴灑透層或黏層乳化瀝青。

8.1.4乳化瀝青廠拌冷再生瀝青混合料生產(chǎn)前，應(yīng)確認(rèn)運(yùn)輸、攤鋪、碾壓設(shè)備及施工準(zhǔn)備完全到位。

粗、中粒式冷再生結(jié)構(gòu)層單層壓實(shí)厚度不宜大于160mm，亦不宜小于80mm；細(xì)粒式冷再生結(jié)構(gòu)層單層

壓實(shí)厚度不宜大于80mm，亦不宜小于50mm。

8.2冷再生瀝青混合料施工設(shè)備

8.2.1施工設(shè)備

冷再生瀝青混合料施工設(shè)備應(yīng)符合下列要求：

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DB43/T2140—2021

a）冷再生施工設(shè)備主要有：銑刨機(jī)、破碎和篩分設(shè)備、拌和設(shè)備、運(yùn)輸車輛、攤鋪與碾壓等設(shè)備，

還需配置相應(yīng)的輔助設(shè)備；

b）應(yīng)按照要求將設(shè)備配置到位，碾壓、攤鋪設(shè)備的施工能力應(yīng)與拌和設(shè)備的生產(chǎn)能力配套。

8.2.2銑刨、破碎和篩分設(shè)備

應(yīng)采用大功率銑刨機(jī)，寬幅、較大厚度、慢速銑刨，減少粗集料破碎，銑刨過程中宜少水。根據(jù)冷

再生瀝青混合料的生產(chǎn)能力配置非顎式破碎設(shè)備，根據(jù)RAP的分檔情況配置振動篩網(wǎng)，RAP分三檔及以

上規(guī)格時應(yīng)采用二級篩分。

8.2.3拌和設(shè)備

拌和設(shè)備宜滿足新的粗集料、大于9.5mm的RAP料與水、乳化瀝青進(jìn)行單獨(dú)預(yù)拌和，再與其他剩

余材料混合拌和的功能（分步預(yù)拌功能）；應(yīng)配置不少于6個冷料倉（其中4個為RAP料倉、2個為新

集料料倉）、2個粉料罐（1個礦粉罐、1個水泥罐；粉料罐底部應(yīng)安裝附著式振動器，以防止粉料板

結(jié)起拱）、1～2個乳化瀝青罐和1個水罐。此外，拌和設(shè)備應(yīng)符合計(jì)量精度要求，粉料、乳化瀝青及

水計(jì)量誤差均應(yīng)控制在±1.0％。在施工之前，所有冷料倉計(jì)量系統(tǒng)、粉料添加裝置和液體添加裝置，均需

經(jīng)過動態(tài)、靜態(tài)標(biāo)定。拌和設(shè)備控制系統(tǒng)應(yīng)具有實(shí)時記錄所有物料重量、實(shí)時打印配合比數(shù)據(jù)的功能。

8.2.4運(yùn)輸車輛

運(yùn)輸車輛應(yīng)符合下列要求：

a）運(yùn)輸車輛應(yīng)采用車況良好、有金屬底板的自卸式卡車，單車載重以20t～40t為宜，車廂卸

料傾角宜大于35°；

b）不宜采用超高超長的改裝車輛；

c）車輛數(shù)量應(yīng)與運(yùn)輸距離及生產(chǎn)、攤鋪能力匹配；

d）未裝料前，車廂內(nèi)應(yīng)保持潔凈，不應(yīng)沾有雜物，宜在車箱底板上噴涂隔離劑（不應(yīng)使用柴油）；

e）運(yùn)輸車輛應(yīng)備有覆蓋設(shè)施，車廂四角應(yīng)密封堅(jiān)固。

8.2.5攤鋪設(shè)備

攤鋪設(shè)備應(yīng)符合下列要求：

a）應(yīng)采用瀝青混合料攤鋪機(jī)攤鋪，攤鋪機(jī)的數(shù)量、寬度應(yīng)與施工路幅寬度匹配，推薦使用單臺大

功率抗離析瀝青混凝土攤鋪機(jī)；

b）瀝青混合料攤鋪機(jī)應(yīng)安裝有可調(diào)的活動熨平板或整平組件，應(yīng)配備熨平板自動找平裝置，其傳感

器可通過基準(zhǔn)線自動發(fā)出信號來調(diào)整熨平板，使攤鋪機(jī)能鋪筑出理想的縱、橫坡度和平整度；

c）攤鋪機(jī)應(yīng)有振動夯錘與可調(diào)整振幅的振動熨平板的組合裝置，夯錘與振動熨平板的頻率與振幅

應(yīng)能各自獨(dú)立調(diào)整。

8.2.6壓實(shí)設(shè)備

壓實(shí)設(shè)備應(yīng)符合下列要求：

a）應(yīng)配有輪胎壓路機(jī)、單鋼輪振動壓路機(jī)和雙鋼輪振動壓路機(jī)；輪胎壓路機(jī)自重應(yīng)不小于30t，

輪胎氣壓不小于0.6MPa；單鋼輪振動壓路機(jī)自重為18t～22t，激振力應(yīng)大于35t；雙鋼

輪振動壓路機(jī)自重為12t～14t；

b）攤鋪寬度不大于7.5m時，可配置攤鋪機(jī)、單鋼輪、雙鋼輪和輪胎壓路機(jī)各一臺；攤鋪寬度大

于7.5m時，攤鋪、壓實(shí)機(jī)具應(yīng)各配置兩臺套；宜采用一臺大功率大寬度抗離析攤鋪機(jī)。

8

DB43/T2140—2021

8.3RAP的回收、預(yù)處理與堆放

8.3.1RAP回收應(yīng)符合下列要求：

a）不同的RAP應(yīng)分別回收，分開堆放、不應(yīng)混雜；

b）可選用銑刨、機(jī)械開挖等方式回收RAP；

c）RAP在回收和存放時不應(yīng)混入無機(jī)結(jié)合料穩(wěn)定材料、水泥混凝土材料、土、雜物等雜質(zhì)；

d）應(yīng)搭棚覆蓋貯存RAP、堆高不宜超過5m，宜采用布料機(jī)碼堆。

8.3.2RAP的預(yù)處理應(yīng)符合下列要求：

a）使用兩臺以上裝載機(jī)將一個料堆的RAP充分翻松、混合均勻，然后用非顎式破碎機(jī)進(jìn)行破碎，

加工后的RAP最大粒徑應(yīng)小于再生瀝青混合料最大粒徑，不宜有超粒徑材料；

b）根據(jù)不同的級配類型破碎篩分成不同的規(guī)格，針對表4中的粗粒式、中粒式以及細(xì)粒式級配，

對回收的RAP進(jìn)行預(yù)處理。

注：粗粒式級配的RAP可破碎篩分成0mm～4.75mm、4.75mm～9.5mm、9.5mm～19mm、19mm～26.5mm四檔，

中粒式級配的RAP可破碎篩分產(chǎn)成0mm～4.75mm、4.75mm～9.5mm、9.5mm～19mm三檔，細(xì)粒式A型級配

的RAP可破碎篩分產(chǎn)成0mm～4.75mm、4.75mm～9.5mm、9.5mm～16mm三檔，細(xì)粒式B型級配的RAP可破

碎篩分產(chǎn)成0mm～4.75mm、4.75mm～9.5mm二檔。

8.3.3RAP的貯存應(yīng)符合下列要求：

a）已預(yù)處理好的RAP，可用裝載機(jī)、布料機(jī)等將其轉(zhuǎn)運(yùn)到堆料場均勻堆放，轉(zhuǎn)運(yùn)和堆放過程中應(yīng)

避免RAP離析，裝載機(jī)等重型設(shè)備不應(yīng)在已預(yù)處理分檔的RAP上來回碾壓、行走；

b）已預(yù)處理好的不同規(guī)格的RAP應(yīng)貯存在已硬化處理、不積水且搭棚遮蓋的料倉中，各料倉采用

圬工或水泥混凝土隔墻分隔、分類堆放，防止竄料，堆放高度不宜超過