Results 141 to 150 of about 329 (177)
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Lowering the Asphalt Production Temperature - Foam Asphalt Allows Greener Roads
Advanced Materials Research, 2013New technologies enable the manufacturing of asphalt at reduced temperatures. As a result The energy consumption per ton of asphalt and the emissions at the road construction site drop significantly. Whilst conventional asphalt is produced at around 170 ° C, the low - temperature processes of today allow production temperatures of around 100 ° C ...
Andreas Biedermann +2 more
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Foamed bitumen: an alternative way of producing asphalt mixtures
Ciência & Tecnologia dos Materiais, 2017Abstract With the constant need to improve and make the production of asphalt mixtures more sustainable, new production techniques have been developed, the implementation of which implies the correct knowledge of their performance. One of the most promising asphalt production techniques is the use of foamed bitumen.
Abreu, Liliana Patrícia Ferreira +5 more
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Effect of laboratory foamer on asphalt foaming characteristics and foamed mixture properties
International Journal of Pavement Engineering, 2015AbstractIn the United States, mechanical foaming is the most popular method for producing warm mix asphalt, which is the latest technology implemented to reduce the production temperature and/or enhance the compactability of asphalt mixtures. Three commonly used commercially available laboratory foamers to produce asphalt foams include the Wirtgen WLB ...
Fan Yin +2 more
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Sensitivity of Nozzle-Based Foamed Asphalt Binder Characteristics to Foaming Parameters
Transportation Research Record: Journal of the Transportation Research Board, 2014Foam-based warm-mix asphalt technologies decrease the overall viscosity of the asphalt mixture at lower temperatures so that it is workable during construction. However, after construction, viscosity increases rapidly as the foam disappears and the temperature drops.
Hande I. Ozturk, M. Emin Kutay
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Mix design procedure for foamed asphalt mixtures
Road Materials and Pavement Design, 2016Mechanical foaming is the most popular method for producing warm mix asphalt in the United States; yet, a standard mix design procedure for foamed asphalt mixtures has not been established. Currently, the design of foamed asphalt mixtures consists of determining the optimum binder content by following a standard hot mix asphalt (HMA) design procedure ...
Fan Yin, Edith Arámbula-Mercado
exaly +2 more sources
Failure Investigation of a Foamed-Asphalt Highway Project
Journal of Infrastructure Systems, 2006This paper documents an investigation into the cause of structural distress (alligator cracking and deep rutting) found in a foamed-asphalt warranty project in Texas. This is a unique forensic study involving a warranty specification, where the contractor may or may not be liable for the cost of repairs, depending on the outcome of the study. Extensive
Dar-Hao Chen +4 more
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Bitumen Chemical Foaming for Asphalt Paving Applications
Industrial & Engineering Chemistry Research, 2010As an alternative to traditional hot-mix asphalt paving, bitumen foaming technologies have been extensively used in road recycling over the last decades. However, much more work on the use of foam-enhancing chemical agents is needed. This research deals with the influence that temperature and processing protocol exert on the bitumen foaming process ...
Virginia Carrera +4 more
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Workability Evaluation of Foamed Warm-Mix Asphalt
Journal of Materials in Civil Engineering, 2014AbstractIn recent years, a new group of technologies has been introduced in the United States that allow producing asphalt mixtures at temperatures 30 to 100°F (16.7–55.6°C) lower than what is used in traditional hot-mix asphalt (HMA). These technologies are commonly referred to as warm-mix asphalt (WMA).
Ayman Ali +5 more
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Evaluation of the Properties of Recycled Asphalt Mixtures Using Foamed Asphalt Binders
International Journal of Highway Engineering, 2023Sang Gu Park, Jin hoon Jeong
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Mechanism exploration of the foamed asphalt binder using the Molecular Dynamics (MD) method
Journal of Cleaner Production, 2022Qingli Dai, Hui Yao, Zhanping You
exaly