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DOUBLE BARREL GREEN WMA PROCESS - Warm Mix Asphalt

Jan 01, 2008  • Use of foamed asphalt in a Double Barrel to produce warm mix • Test projects completed to date • Benefits of Astec warm mix. HOW THE DOUBLE BARREL GREEN WMA PROCESS WORKS. CROSS – SECTIONAL VIEW OF MIXING IN OUTER DRUM Virgin Aggregate. OUTER DRUM Stationary INNER DRUM

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Evaluation of Warm-Mix Asphalt Produced with the

Download Citation Evaluation of Warm-Mix Asphalt Produced with the Double Barrel Green Process During the past 3 years, warm-mix asphalt (WMA) technologies from European countries have entered ...

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Evaluation of Warm-Mix Asphalt Produced with the Double ...

Jan 01, 2009  During the past 3 years, warm-mix asphalt (WMA) technologies from European countries have entered the North American market. European experiences with WMA technologies have indicated that a significant reduction in mixture temperature, mixture viscosity, energy consumption, and environmental emissions during asphalt mix production and

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Warm Mix Asphalt – What is it and how can we benefit?

Mix Half-Warm Asphalt WMA HMA Drying ... • Advera – PQ Corp. • Double-Barrel Green - Astec • Green Machine - Gencor • AQUABlack - Maxam • WMA System ... – A new process has been developed called DAT, • Same chemical package • Diluted with a small amount of water

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Emerging Warm Mix Asphalt technologies - Asphalt magazine

Astec Double Barrel Green® Astec, Inc. launched the Double Barrel Green System in June of 2007 as an option that can be included with any new Astec Double Barrel drum mixer/dryer or added as a retrofit. The system uses water to produce foamed warm mix asphalt by injecting it into the mix along with the liquid asphalt cement.

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(WMA) - Much Asphalt

WARM MIX ASPHALT (WMA) Much Asphalt’s 300 tonne per hour warm mix asphalt plant in Benoni, built by Astec in Tennessee, USA, pioneered the use of foam technology for the manufacture of warm-mix asphalt (WMA) on a large scale in South Africa. The Double Barrel Green System, commissioned in 2010,

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Warm mix asphalt: an overview - ScienceDirect

Mar 01, 2012  Warm Mix Asphalt (WMA) are mixes that are manufactured and spread at lower temperatures than Hot Mix Asphalt. ... Double Barrel Green, Ultrafoam GX, LT Asphalt: Although the equipment for injecting water into the hot binder stream differs (since each company makes its own equipment), the basic principle is the same. ... Specific elements in the ...

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Evaluation of Warm-Mix Asphalt Produced with the Double ...

Download Citation Evaluation of Warm-Mix Asphalt Produced with the Double Barrel Green Process During the past 3 years, warm-mix asphalt (WMA) technologies from European countries have entered ...

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Warm Mix Asphalt – What is it and how can we benefit?

Mix Half-Warm Asphalt WMA HMA Drying ... • Advera – PQ Corp. • Double-Barrel Green - Astec • Green Machine - Gencor • AQUABlack - Maxam • WMA System ... – A new process has been developed called DAT, • Same chemical package • Diluted with a small amount of water

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(WMA) - Much Asphalt

WARM MIX ASPHALT (WMA) Much Asphalt’s 300 tonne per hour warm mix asphalt plant in Benoni, built by Astec in Tennessee, USA, pioneered the use of foam technology for the manufacture of warm-mix asphalt (WMA) on a large scale in South Africa. The Double Barrel Green System, commissioned in 2010,

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Why Warm Mix Asphalt? - Alaska

Road Warm Mix Asphalt Test Sections, Indio Ca Engineering Services 37 Astec Double Barrel Green Rubberized Crack Filler Engineering Services 38 (No Swelling) City of Indio, CA Engineering Services 39 ½ Dense Graded Plant Temp: 270 F. (Astec Double Barrel) Job Temp/Breakdown Rolling: 230 F. Intermediate Rolling 175 F. Final Rolling: 160 F.

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Foamed Warm Mix Asphalt Design Issues

Warm Mix Asphalt (WMA) has quickly become a popular topic in the asphalt industry, and the Federal ... Asphalt Foaming Process (Wirtgen Group 2009) Two of the more locally common mechanical foaming processes are the AQUABlack™ and Double Barrel® Green systems. AQUABlack™ is a foaming process marketed by Maxam Equipment, Inc. This product ...

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Warm Mix Asphalt “The Material of Today”

– Foaming process: water, which is added to the hot binder, turns into steam allowing the expansion of the binder. This allows the viscosity of the foamed binder to be significantly reduced. – WMA-Foam and the Double Barrel Green • Water-bearing additive – induce foaming mechanisms in the asphalt binder using water bearing additives

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Warm Mix Asphalt (WMA) - Hawaii Asphalt

Warm mix asphalt (WMA) is a general term for a a group of technologies that allow a reduction in the temperatures at which asphalt mixes are produced and placed. Conventional HMA is typically produced at temperatures from 280°F to 340°F, while WMA is typically produced from 215°F to 275°F. The required JMF is currently the same for HMA and WMA.

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Warm Mix Asphalt - an overview ScienceDirect Topics

Feb 01, 2013  Warm mix asphalt (also generally known as WMA) is a name given to a group of technologies that have the common purpose of reducing the viscosity of the asphalt binders (Abbas and Ali, 2011). This reduction in viscosity offers the advantage of producing asphalt–aggregate mixtures at lower mixing and compaction temperatures, and subsequently ...

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Research - Evaluation of Warm Mix Asphalt WSDOT

This report provides details of the construction of a warm mix asphalt (WMA) test section on Interstate 90 in Washington State. The test section consists of 7,813 tons of hot mix asphalt (HMA) and 4,724 tons of WMA produced using Sasobit®. Placement of the WMA used the same equipment and procedures as the HMA and attained the same level of ...

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Technologies - Martins Zaumanis - Google

Double Barrel Green nozzle. ... Warm Mix Asphalt System water tank with water pump (right) ... In the mixing process this allows coating of the aggregates at lower temperatures, as illustrated in Figure X.7. After the pavement has cooled and the additives crystallize, they tend to increase the stiffness of the binder and asphalt’s resistance ...

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TECHNOLOGIES FOR PRODUCTION OF WARM MIX

Astec® Double Barrel Green System East Texas Asphalt Co., Ltd. 204 East Burke Avenue Lufkin, TX 75901 HydroFoam IEQ Gencor Industries, Inc. 5201 North Orange Blossom Trail Orlando, FL 32810 Gencor Ultrafoam GXTM Herman Grant Company 1100 Ashmore Avenue Chattanooga, TN 37415 HGRANT Warm Mix System MAXAM Equipment, Inc. 1575

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W Waarrmm--MMiixx AAsspphhaalltt SSttuuddyy:: ck Co t- A si

and covers the Advera WMA®, Astec Double Barrel Green®, Rediset® WMX, and Sasobit® warm-mix technologies. The test track layout and design, mix design and production, and test track construction are discussed, as well as the results of Heavy Vehicle Simulator (HVS) and laboratory testing. Key findings from the study include:

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Bitumen Processing - Big Chemical Encyclopedia

Products currently available in the market are Eco-Foam II, Accu-Shear Dual WMA System, Aquablack WMA, Double Barrel Green, Green Machine, Half-warm foamed bitumen process, HGrant Warm Mix System, Low-emission asphalt. Low-energy asphalt. Meeker warm mix, Terex WMA system. Ultrafoam GX and WAM foam (Nicholls and...

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II. Commentary on Special Mixture Design ... - NAP

NCHRP Project 9-43 included one field project that used 30% RAP, the Astec Double Barrel Green WMA process, and mixing and compaction temperatures 275 and 260°F (135 and 127°C). For this project, the mixing analysis showed good mixing of the RAP and new binders. Additional stud- ies of this type are needed.

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Evaluation of Warm-Mix Asphalt Produced with the Double ...

Download Citation Evaluation of Warm-Mix Asphalt Produced with the Double Barrel Green Process During the past 3 years, warm-mix asphalt (WMA) technologies from European countries have entered ...

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(WMA) - Much Asphalt

WARM MIX ASPHALT (WMA) Much Asphalt’s 300 tonne per hour warm mix asphalt plant in Benoni, built by Astec in Tennessee, USA, pioneered the use of foam technology for the manufacture of warm-mix asphalt (WMA) on a large scale in South Africa. The Double Barrel Green System, commissioned in 2010,

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Warm Mix Asphalt --- The Future of Flexible Pavements

Warm Mix Asphalt---The Future of Flexible Pavements 12th AnnualAnnual ... • Astec Double-Barrel Green • Low Energy Asphalt - Fairco • Terex • WAM Foam - BP – Chemical Modifiers • Evotherm - ... Astec Double Barrel Green Control Temp = 320oF WMA Temp = 270oF. Yellowstone Paving Control Temp = 320oF

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Warm Mix Asphalt “The Material of Today”

– Foaming process: water, which is added to the hot binder, turns into steam allowing the expansion of the binder. This allows the viscosity of the foamed binder to be significantly reduced. – WMA-Foam and the Double Barrel Green • Water-bearing additive – induce foaming mechanisms in the asphalt binder using water bearing additives

Get price

Why Warm Mix Asphalt? - Alaska

Road Warm Mix Asphalt Test Sections, Indio Ca Engineering Services 37 Astec Double Barrel Green Rubberized Crack Filler Engineering Services 38 (No Swelling) City of Indio, CA Engineering Services 39 ½ Dense Graded Plant Temp: 270 F. (Astec Double Barrel) Job Temp/Breakdown Rolling: 230 F. Intermediate Rolling 175 F. Final Rolling: 160 F.

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TECHNOLOGIES FOR PRODUCTION OF WARM MIX

Astec® Double Barrel Green System East Texas Asphalt Co., Ltd. 204 East Burke Avenue Lufkin, TX 75901 HydroFoam IEQ Gencor Industries, Inc. 5201 North Orange Blossom Trail Orlando, FL 32810 Gencor Ultrafoam GXTM Herman Grant Company 1100 Ashmore Avenue Chattanooga, TN 37415 HGRANT Warm Mix System MAXAM Equipment, Inc. 1575

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WARM MIX ASPHALT INVESTIGATION ON PUBLIC ROADS ...

Example- Double Barrel Green, WAM Foam, green Machine (Gencor), LEA (McConnaughay) etc. 1.1 Germany ... contractor is trying to develop its own process. Low Energy Asphalt (LEA) is a warm asphalt ... which was successfully WMA construction. The AC-13 warm mix asphalt test road was paved successfully in December 2007 in China [7]. The test road ...

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Field and Laboratory Evaluation of Warm Mix Asphalt (WMA ...

Definition of WMA An asphalt mixtures can be produced at 50 to 100 °F lower than typical HMA. Reduce production heat by reducing asphalt viscosity by a wide range of WMA technologies. Classification of Mix Asphalt Productions by Temperature Range

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(PDF) Warm Mix Asphalt Performance ... - Academia

Warm Mix Asphalt (WMA) technology produces asphalt at lower temperature between 30oF to 100oF than the traditional Hot Mix Asphalt (HMA). Its merits maybe stated as: 1.Fuel usage and emissions. 2. Hauling and Compaction. 3. Use of Reclaimed Asphalt

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A long-term ultraviolet aging procedure on foamed WMA ...

Feb 21, 2013  Middleton B, Forfylow RW (2009) Evaluation of warm-mix asphalt produced with the double barrel green process. TRR 2126:19–26. Article Google Scholar 5. Wielinski J, Hand A, Rausch DM (2009) Laboratory and field evaluations of foamed warm-mix asphalt projects. TRR 2126:125–131. Article Google Scholar 6.

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Slide 1

Double Barrel Green Green Pac. Stansteel. Aquablack ... Water injection WMA Process. First large production of Water-Injection WMA (besides trials) ... Warm Mix Asphalt (WMA) Guide Specification for Highway Construction . DIVISION 400 -

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Mix Design Practices for Warm-Mix Asphalt - NAP

Warm mix asphalt (WMA) refers to asphalt concrete mixtures that are produced at temperatures approximately 50°F (28°C) or more cooler than typically used in the production of hot mix asphalt (HMA). The goal of WMA is to produce mixtures with similar strength, durability, and performance characteristics as HMA using substantially reduced ...

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RAP Essential in Asphalt Plants - Equipment India

Ability to produce warm-mix asphalt using bitumen-foaming technology popularly known as Double Barrel Green System. The WMA foaming system is presently the industry standard for producing warm-mix asphalt and is a giant step forward for the industry because it uses water as an additive to produce warm-mix asphalt.

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NEAUPG OCTOBER 7,2009 - University of Connecticut

Jan 09, 2020  WMA Technologies Used in North America Foaming Double Barrel Green Terex Warm Mix Asphalt System Gencor Stansteel LEA Aspha-min Advera WMA WAM Foam Organic Additive Sasobit Chemical Additive Evotherm Evotherm DAT REVIX Rediset WMX Cecabasa RT

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