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A special issue of Sustainability (ISSN 2071-1050).

Deadline for manuscript submissions: closed (31 October 2021) | Viewed by 24286

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Special Issue Editor

Dr. Ramón Botella

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Guest Editor

Universitat Politècnica de Catalunya - BarcelonaTech, Barcelona, Spain
Interests: pavement; bituminous mixtures; asphalt; fatigue; cracking; materials testing

Special Issue Information

Dear Colleagues,

I would like to invite to submit your papers to the Special Issue entitled “Sustainable Pavement Materials and Technology” of Sustainability (ISSN 2071-1050). In recent years, the Pavement Materials and Technology community has focused most of its research efforts to minimize the environmental impact of the materials and procedures involved in pavement design, construction, maintenance and rehabilitation. In that process several new materials and techniques have been developed. Such is the case of bio-based rejuvenating agents, high-performance emulsions, efficient recycling techniques, mixtures with high rates of Reclaimed Asphalt Pavement (RAP), new analysis techniques to evaluate the amount of old binder available for the new mixture in the RAP, new techniques to reclaim concrete pavements, and several other new concepts. The main objective of this special issue is to collect the state-of-the-art materials and techniques that have been or are being developed right now by the leading experts of this field of knowledge. Hopefully, this special issue will become a collection of reference works regarding sustainable pavement techniques that will help future researchers to further reduce the carbon footprint of theses infrastructures.

Dr. Ramón Botella
Guest Editor

Manuscript Submission Information

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Keywords

pavement
recycling
sustainability
life cycle analysis
reclaimed asphalt pavement
crumb rubber

Published Papers (7 papers)

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Editorial

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2 pages, 169 KiB

Open AccessEditorial

Sustainable Pavement Materials and Technology

by Ramon Botella

Sustainability 2022, 14(11), 6605; https://doi.org/10.3390/su14116605 - 27 May 2022

Viewed by 1074

Abstract

In recent years, the pavement materials and technology community has focused most of its research efforts to minimize the environmental impact of the materials and procedures involved in pavement design, construction, maintenance and rehabilitation [...] Full article

(This article belongs to the Special Issue Sustainable Pavement Materials and Technology)

Research

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16 pages, 2499 KiB

Open AccessArticle

Study of the Optimal Dosage of Celullose Ash as a Contribution Filler in Asphalt Mixtures Based on Its Adhesiveness under Moisture Conditions

by Diana Movilla-Quesada, Aitor C. Raposeiras, Manuel Lagos-Varas, Osvaldo Muñoz-Cáceres, Valerio-Carlos Andrés-Valeri and Loreto Troncoso

Sustainability 2021, 13(2), 854; https://doi.org/10.3390/su13020854 - 16 Jan 2021

Cited by 6 | Viewed by 1823

Abstract

Chile is the first Latin American country to begin an “ecological overdraft”, as established by the Global Footprint Network (GFN). This implies that the country’s ecological footprint has exceeded the global average bio-capacity. The consumption of natural aggregates for construction in Chile has grown by around 6.6% in the last year, with around 120 million tons being extracted. Given the above, it is important to seek alternatives that help to minimize the problem of resource scarcity, as well as the recovery of industrial by-products and/or waste. The Chilean forestry sector has also grown in recent years, generating approximately 4000 metric tons of waste in 2018, which was deposited in landfills or disposed of on forest roads. The present research is focused on the reuse and possible recovery of ash from the incineration of cellulose as a filler in bituminous mixtures. We analyze the adhesiveness of the filler/bitumen system in dry and wet states, based on the Cantabro wear loss test. The results obtained show that the limit of the relation between the volumetric concentration and critical concentration (Cv/Cs) is 1 for the addition of ash and that concentrations lower than or equal to this value present controlled losses, with 1.00 being the optimal (Cv/Cs) ratio that allows better behavior against the effect of water. Full article

(This article belongs to the Special Issue Sustainable Pavement Materials and Technology)

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21 pages, 6574 KiB

Open AccessArticle

A Laboratory Assessment of the Influence of Crumb Rubber in Hot Mix Asphalt with Recycled Steel Slag

by Bruno Crisman, Giulio Ossich, Lorenzo De Lorenzi, Paolo Bevilacqua and Roberto Roberti

Sustainability 2020, 12(19), 8045; https://doi.org/10.3390/su12198045 - 29 Sep 2020

Cited by 13 | Viewed by 2394

Abstract

To reduce thermal susceptibility and improve rutting and fatigue cracking resistance, increasingly more non-conventional additives and materials have been used in road pavement asphalt mixes in recent years. Non-conventional materials mainly include recycled materials, which reduce production costs and lead to environmental benefits related to their reuse. The aim of this research was to evaluate the influence of recycled tyre rubber in the production of asphalt concrete for road pavements built with recycled aggregates consisting of steel slag in relation to possible improvements in structural performance during operation (i.e., fatigue and rutting). Steel slag has a higher bulk specific gravity than natural aggregates, and it has a very porous surface that allows for a different interaction with the bitumen and the crumb rubber compared to traditional aggregates. To this end, two mixtures of asphalt concrete are compared. One was mixed with a modest percentage by weight of crumb rubber using the “dry” technique, and the other mixture did not contain crumb rubber. Indirect tensile and compression tests with cyclic loads were performed to determine the mechanical behaviour of the two mixtures at different temperatures and under different load frequencies. The results of this research indicate the better performance of the modified mixture with crumb rubber, which agrees with other experiments in the literature that have been made using natural aggregates. Furthermore, a significant increase in stiffness was found at high temperatures (up to 30%), a slight reduction (up to 8%) was found at low temperatures, and a reduction in permanent deformation was found under cyclic loads. Full article

(This article belongs to the Special Issue Sustainable Pavement Materials and Technology)

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14 pages, 3515 KiB

Open AccessArticle

The Impact of Recycled Concrete Aggregate on the Stiffness, Fatigue, and Low-Temperature Performance of Asphalt Mixtures for Road Construction

by Aleksandar Radević, Ivan Isailović, Michael P. Wistuba, Dimitrije Zakić, Marko Orešković and Goran Mladenović

Sustainability 2020, 12(10), 3949; https://doi.org/10.3390/su12103949 - 12 May 2020

Cited by 21 | Viewed by 2644

Abstract

The need for road (re)construction materials is constantly growing. At the same time, there is a limited quantity of new, high-quality materials available and a buildup of secondary/recycled construction materials. One possible solution may be the use of recycled concrete aggregate (RCA) in asphalt mixtures instead of natural aggregate (NA), which also promotes economic and environmental sustainability. The potential use of fine and coarse RCA in road asphalt mixtures is analyzed in this work. Nine asphalt mixtures were tested for base course layers, where RCA was used as a NA substitute. The impact of the quantity of RCA (up to 45% by mass) on the resulting physical and mechanical properties of asphalt mixtures was investigated, and consequently compared with the properties of a reference control mixture produced with NA only. Results reveal that the addition of RCA requires higher bitumen in comparison to the control mixture (up to 1%). Consequently, mixtures with RCA had 15−20% lower stiffness and up to 26% higher critical fatigue strain value (ε₆). Although RCA mixtures contained more bitumen, their low-temperature resistance was slightly inferior compared with the control mixture (failure temperatures were up to 4.3 °C higher). In conclusion, asphalt mixtures with up to 45% RCA can be used without substantially reducing performance. Full article

(This article belongs to the Special Issue Sustainable Pavement Materials and Technology)

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13 pages, 7797 KiB

Open AccessArticle

Experimental Study on the Performance Decay of Permeable Asphalt Mixture in Seasonally Frozen Regions under Freeze-Thaw Cycles

by Chao Chai, Yong-Chun Cheng, Yuwei Zhang, Yu Chen and Bing Zhu

Sustainability 2020, 12(7), 2966; https://doi.org/10.3390/su12072966 - 8 Apr 2020

Cited by 11 | Viewed by 2230

Abstract

This paper focuses on the freeze-thaw cycles (F-T cycles) resistance of porous asphalt mixture (PAM) with different air voids in order to explore the gradation of the PAM suitable for seasonal freezing regions. Three sets of PAMs with 18%, 21%, and 25% air voids were designed. After 0–20 F-T cycles, the effects of F-T cycles on the performance degradation of three groups of PAMs were studied by performing a low-temperature splitting test with acoustic emission technology, a normal temperature splitting test, a compression test, a Cantabro particle loss test, and a dynamic creep test. The results show that the damage process of PAM caused by multiple F-T cycles could be more clearly defined by acoustic emission parameters. In addition, the larger the air void, the smaller its indirect tensile strength and compression strength, and the worse its particle loss resistance and high-temperature stability, which made the adverse effect of F-T cycles more significant. Therefore, the air void of PAM used in seasonal freezing regions is suggested to be less than 21%. Full article

(This article belongs to the Special Issue Sustainable Pavement Materials and Technology)

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Review

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24 pages, 42884 KiB

Open AccessReview

A Review on the Durability of Recycled Asphalt Mixtures Embraced with Rejuvenators

by Zaid Hazim Al-Saffar, Haryati Yaacob, Herda Yati Katman, Mohd Khairul Idham Mohd Satar, Munder Bilema, Ramadhansyah Putra Jaya, Ahmed Salama Eltwati and Hassanain Radhi Radeef

Sustainability 2021, 13(16), 8970; https://doi.org/10.3390/su13168970 - 11 Aug 2021

Cited by 29 | Viewed by 4044

Abstract

Reclaimed asphalt pavement (RAP) has received much attention recently due to its increased use in hot mix asphalt (HMA) pavements to enhance pavement sustainability. The use of aged asphalt in RAP, which is highly oxidised and has lost its properties due to exposure to traffic loads and climatic conditions throughout its lifespan, can cause asphalt mixtures to stiffen and embrittle, thus negatively affecting the behaviour of asphalt mixtures. This issue may be resolved by including rejuvenating agents that can restore both physical and rheological properties of aged asphalt by increasing maltene fractions and decreasing asphaltene. However, the high restoration capacity of any kind of rejuvenating agent does not assure the durability of restored aged asphalt. This study explored the performance and durability of rejuvenated asphalt mixtures embedded with several types of rejuvenators identified from the extensive literature review. The study serves as a significant reference to predict future challenges in rejuvenating aged asphalt. Full article

(This article belongs to the Special Issue Sustainable Pavement Materials and Technology)

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Other

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19 pages, 1925 KiB

Open AccessLetter

Advancing Pervious Pavements through Nomenclature, Standards, and Holistic Green Design

by Charles E. Sprouse III, Conrad Hoover, Olivia Obritsch and Hannah Thomazin

Sustainability 2020, 12(18), 7422; https://doi.org/10.3390/su12187422 - 9 Sep 2020

Cited by 6 | Viewed by 7871

Abstract

Researchers developing pervious pavements over the past few decades have commendably demonstrated long-term run-off reduction using a diverse collection of materials. Today, pervious pavements are widely recognized as a low impact development technique and a type of green infrastructure, and installations are proliferating throughout the United States and worldwide. The entire field of pervious pavements though, is being profoundly stunted by three persistent problems: conflicting nomenclature, flawed testing standards, and the absence of a holistic green design framework. This study examines each problem and proposes novel solutions. On nomenclature, a multi-channeled study of the terms “pervious”, “permeable”, and “porous” considers each word’s etymology and usage in the academic literature, in ASTM International standards, and by (U.S.-based) governmental entities. Support is found for using pervious pavements (i.e., “through” the “road”) as the over-arching category of all water passable pavements, branching down into porous pavements (i.e., “full of pores”, including porous asphalt and porous concrete) and permeable pavements (i.e., “containing passages”, often between paver units). ASTM International standards are shown to insufficiently account for the impact of paver unit size on infiltration rate, warranting the development of a more reliable testing method featuring variable infiltration ring size, shape, and placement. Finally, a ten-part holistic green design framework is elucidated for use in assessing candidate pavements and engineering new pavements, contextualizing the latest pervious pavement research and illuminating a brighter path forward. Full article

(This article belongs to the Special Issue Sustainable Pavement Materials and Technology)

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