Towards 90% warm re-use of porous asphalt using foaming technology

Qiu, Jian; Huurman, M.; Bruin, B. de; Demmink, E.; Frunt, M.H.T.

doi:10.1016/j.jclepro.2018.04.086

Cited by 32 publications

(15 citation statements)

References 4 publications

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“…This mixture of secondary sand, secondary bitumen, and primary bitumen is heated to a temperature of 170 • C and foamed using water. An electric bitumen foaming machine must be used for this [16]. The primary and secondary aggregates are heated in parallel to a temperature of 105 • C and mixed at the same temperature with the foamed bitumen.…”

Section: Foamed Bitumen/low Temperaturementioning

confidence: 99%

“…However, in none of the studies has RAP content exceeded 50%, which means that only technologies with high TRLs have been investigated so far. As more challenging concepts at lower TRLs are proposed, such as >90% RAP combined with WMA, the technological information is usually limited to technical details [16], and information about the potential environmental performance is not readily available. The only exception that we are aware of is the study by [17], who investigated asphalt concrete mixtures for different asphalt layers with increasing RAP contents from 0% to 100%, and concluded that increasing RAP contents lead to a linear decrease in environmental impacts.…”

Section: Introductionmentioning

confidence: 99%

“…For the surface-layer mixtures containing more than 70% RAP, the additive used by [16] was applied. It is an additive produced using tall oil from paper pulp production, which was added to the top-layer mixtures at a rate of 10% of aged bitumen content in RAP, as recommended by the producer [37].…”

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confidence: 99%

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Potential Carbon Footprint Reduction for Reclaimed Asphalt Pavement Innovations: LCA Methodology, Best Available Technology, and Near-Future Reduction Potential

et al. 2021

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The carbon footprints of asphalt mixtures with increasing reclaimed asphalt pavement (RAP) content were estimated using a life-cycle assessment methodology. Three asphalt mixtures with different applications and technical requirements, namely porous asphalt (PA), stone mastic asphalt (SMA), and asphalt concrete (AC), were included. The technology leaps needed to achieve asphalt mixtures containing up to 93% RAP were modelled. Mixtures containing up to 57% RAP were hot-mix asphalts (175 °C), while mixtures containing more RAP were produced at 135 °C and 105 °C. The energy requirements and their respective carbon footprints were calculated based on the heat capacity of the aggregates, RAP, and other bituminous materials. Furthermore, the effects of changing the country’s electricity mix were also evaluated. A potential carbon footprint reduction of between 55% and 64% was found for one tonne of asphalt containing 93% RAP and produced at 105 °C compared to the 0% RAP mixture produced at 175 °C. Considering the uncertainty of this technology at its early stage of development, the reduction could be as low as 45% or as high as 79%. Changing the electricity mix to one that is likely to be implemented until 2030 in the Netherlands further reduces the footprint by 10%.

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Section: Foamed Bitumen/low Temperaturementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Potential Carbon Footprint Reduction for Reclaimed Asphalt Pavement Innovations: LCA Methodology, Best Available Technology, and Near-Future Reduction Potential

et al. 2021

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“…Задачей предлагаемого конструктивно-технологического мероприятия является повышение надежности эксплуатации малых и средних русловых водохранилищных гидроузлов и урожайности сельскохозяйственных культур [6,7,8].…”

Section: авторські права захищеноunclassified

Заходи Для Захисту Водоймищ Від Замулення І Поліпшення Меліоративного Стану Зрошуваних Земель

Муратов¹,

Фирліна²,

Мелікузієв³

2019

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У даній статті розглянуті питання пов'язані з процесом замулення малих і середніх руслових водосховищ і вплив цього явища на родючість земель в зоні їх командування. Встановлено, що процес замулення малих і середніх руслових водосховищ досить складне явище і воно в основному залежить від режиму роботи водосховищ та гідрологічних, геоморфологічних, гідротехнічних та інших факторів гідровузлів. На основі багаторічних теоретичних і практичних досліджень розроблено конструктивно-технологічний захід по збереженню регулюючих ємностей малих і середніх руслових водосховищ і забезпечення скидання в нижній б'еф греблі зважених колоїдних наносів з розмірами d> 0, 05мм в період вегетації. При цьому обсяг скидання наносів в нижній б'еф греблі становить 60-80% від загального обсягу твердого стоку, що надходить у водосховище за один сезон, що в 2-3 рази збільшеє термін надійної і безпечної служби водосховища, а очікуване зростання врожайності сельхозкултур в зоні командування водосховища становить приблизно 6-8%.

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“…Porous asphalt pavement (PAP) has several important technical features, including good anti-slipping performance [5], low noise [6], reduced water splash and spray on rainy days [7], and mitigation of glaring lights when driving at night. These benefits are partly due to large air voids (~20%) [8] and the permeable structure of the interior of the PAP [9]. PAP with higher voids would allow faster drainage and reduce dangerous driving hazards, such as hydroplaning caused by puddles.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Engineering Properties of Powdered Activated Carbon Amendments in Porous Asphalt Pavement

Huang

Liang

2021

Processes

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Porous asphalt pavement (PAP) with a high drainage capacity was modified with powdered activated carbon (PAC) addition to produce permeable reactive pavement (PRP), which may exhibit the potential to reduce environmental non-point source (NPS) pollution. The experimental design mixtures used to produce and test the PRP incorporated with PAC (named PRP-PACs) were conducted as follows: first, the PACs were initially tested to determine their feasibility as an additive in PAP; second, different amounts of PAC were added during the preparation of PAP to produce PRP-PAC, and the unregulated and regulated physical characteristics for the mechanical performance of PRP-PACs were examined to ensure that they meet the regulatory specifications. Third, the aqueous contaminants, namely benzene, toluene, ethyl-benzene, and xylene (BTEX), column adsorption tests were preliminarily conducted to demonstrate their adsorption capacities compared to traditional PAP. The compositions of 0.8% and 1.5% PAC (by wt.) (PRP-PAC08 and PRP-PAC15) met all the regulated specifications. As compared to PAP, PRP-PAC08 exhibited higher BTEX adsorption capacities than PAP, which were 47, 49, 29, and 2%. PRP-PAC08 showed both superior physical properties and adsorption performance than PAP and may be recommended as an engineering application that reduces the potential for NPS contamination of air, soil, groundwater, and surface water.

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Towards 90% warm re-use of porous asphalt using foaming technology

Cited by 32 publications

References 4 publications

Potential Carbon Footprint Reduction for Reclaimed Asphalt Pavement Innovations: LCA Methodology, Best Available Technology, and Near-Future Reduction Potential

Potential Carbon Footprint Reduction for Reclaimed Asphalt Pavement Innovations: LCA Methodology, Best Available Technology, and Near-Future Reduction Potential

Заходи Для Захисту Водоймищ Від Замулення І Поліпшення Меліоративного Стану Зрошуваних Земель

Evaluation of the Engineering Properties of Powdered Activated Carbon Amendments in Porous Asphalt Pavement

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