Modeling climate change impacts of pavement production and construction

White, Philip; Golden, Jay S.; Biligiri, Krishna Prapoorna; Kaloush, Kamil

doi:10.1016/j.resconrec.2009.12.007

Cited by 123 publications

(46 citation statements)

References 8 publications

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“…At present, paved surfaces can comprise up to 45% of land cover in urban regions of the United States [1]. Worldwide, the present global urbanization rate and the overall increase in the population are generating a high demand for new road networks.…”

Section: Introductionmentioning

confidence: 99%

Energy and exergy analysis in an asphalt plant’s rotary dryer

Peinado

Vega

García-Hernando

et al. 2011

Applied Thermal Engineering

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a b s t r a c tIn this paper, energy and exergy analyses of a rotary dryer employed in a Hot Mix Asphalt (HMA) plant for heating and drying of the aggregates in the mixture is presented. In the analysis, the exergy method in addition to the more conventional energy analysis, is employed to identify and evaluate the ther modynamic losses. The results show that, at design conditions, the plant performs with energy and exergy efficiencies of 0.89 and 0.18, respectively. The energy losses are mainly due to the flue gases. The exergy distribution indicates that the combustion and the heat transfer at different temperatures in the burner yield the highest exergy destruction in the process. A parametric study is conducted for the plant under various operational production parameters, including different humidities of the aggregates and filler content in aggregates, working temperatures and ambient conditions, in order to determine the parameters that affect the plant performance. It is shown that the solids humidity has a great impact on energy requirements. A better and sustainable use of the heat source employed in the dryer is proposed to avoid the high irreversibilities found. Furthermore, operating corrections in the mix or in the exhaust gas temperature are proposed to optimize the performance of the plant.

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Section: Introductionmentioning

confidence: 99%

Energy and exergy analysis in an asphalt plant’s rotary dryer

Peinado

Vega

García-Hernando

et al. 2011

Applied Thermal Engineering

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“…Considering construction equipment, the amount of CO2 emission has increased over the past decades and accounts for 40% of total CO2 emissions from non-road vehicles [5,6]. However, the past literature on environmental impact reduction in highway projects has focused merely on material selection [7][8][9][10] during the design phase, mitigation action in the operation phase [11][12][13], and reclamation of wasted materials after demolition [14][15]. This attention prevents a holistic view of project planners on construction sustainability with lack of direct perception on the impacts from construction processes.…”

Section: Introductionmentioning

confidence: 99%

An Application of Discrete-Event Simulation in Estimating Emissions from Equipment Operations in Flexible Pavement Construction Projects

Limsawasd¹,

Athigakunagorn²

2017

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Abstract. This paper presents a comprehensive model with an application of discrete-event simulation (DES) that facilitates an estimation of CO2 emissions resulting from equipment operation in flexible pavement construction. While there are a number of past studies applying a DES technique to the construction process, they mostly concentrate on a single process rather than an entire project. The constructed model aims to improve the current body of knowledge in two aspects: (1) the development of a comprehensive construction operation diagram representing flexible pavement construction and (2) the application of DES that contributes to a more reliable result of the environmental impact. An application example of the real expressway project in Thailand was analyzed to demonstrate the use and capabilities of the developed model in evaluating the environmental impact in terms of CO2 emissions. The findings will provide a holistic environmental perspective to transportation planners and help them in analyzing their resource allocation in order to make the projects more eco-friendly.

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“…Asphalt mixtures are used for construction of pavement wearing courses on more that ninety percent of the road network in Europe [1] and, according to some sources, the situation is quite similar in other parts of the world [2]. In accordance with this trend, asphalt mixtures are used for construction of pavement wearing courses on almost the entire road network in Croatia [3].…”

Section: Introductionmentioning

confidence: 99%

Svojstva mješavina za izradu nevezanih nosivih slojeva s dodatkom recikliranog asfalta

2016

JCE

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The possibility of using recycled asphalt as replacement for natural aggregate in unbound base course mixes is explored in the paper. The mixes in which a certain proportion of natural aggregate (limestone, gravel) was replaced with recycled asphalt were analysed. The testing program involved analysis of the grading, compaction parameters, physicomechanical properties and bearing capacity of mixes. The results show that recycled asphalt can be used, in some proportions, as a suitable replacement for natural aggregate.

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Modeling climate change impacts of pavement production and construction

Cited by 123 publications

References 8 publications

Energy and exergy analysis in an asphalt plant’s rotary dryer

Energy and exergy analysis in an asphalt plant’s rotary dryer

An Application of Discrete-Event Simulation in Estimating Emissions from Equipment Operations in Flexible Pavement Construction Projects

Svojstva mješavina za izradu nevezanih nosivih slojeva s dodatkom recikliranog asfalta

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