Multivariate data analysis applied in Hot-Mix asphalt plants

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  • Performance of Recycled Hot-Mix Asphalt Mixtures in Georgia

    Hot-mix recycling of asphalt pavements is increasingly being used as one of the major rehabilitation methods by highway agencies throughout the United States. Besides saving in costs and energy, it also conserves natural resources. The Georgia Department

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  • Development of a Practical Method for Design of Hot-Mix Asphalt

    42 TRANSPORTATION RESEARCH RECORD 1317 Development of a Practical Method for Design of Hot-Mix Asphalt _ K. E. COOPER, s. F. BROWN, J. N. PRESTON, AND F. M. L. AKEROYD The development of a method for the design of hot-mix a pl~alt

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  • WARM MIX ASPHALT PROCESSES APPLICABLE TO NORTH …

    Warm mix asphalt (WMA) represents a group of technologies that allows production of asphalt mixtures at lower temperatures compared to traditional hot mix asphalt (HMA). This results in less fuel consumption and reduction in CO 2 and fumes emission.

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  • Environmental comparison at industrial scale of hot and half- warm mix asphalt manufacturing processes

    half-warm asphalt mixes is equivalent to that of hot-mix asphalt, i.e. for which less than 0.5% is tolerated. FIGURE 2 The LEA ® 1 process on a continuous asphalt plant with the introduction of

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  • Occupational Exposure during Asphalt …

    15/2/2021 · Asphalt applied in this temperature interval is often referred to as hot mix asphalt (HMA) (Rubio et al., 2012). Conversely, warm mix asphalt (WMA) is usually 20–40°C cooler during paving. There are two main methods of producing WMA: foaming and additive ( Capitão et al., 2012 ).

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  • Emissions of Polycyclic Aromatic Hydrocarbons from …

    3/9/2004 · Multivariate data analysis applied in Hot-Mix asphalt plants. Resources, Conservation and Recycling 2013, 73, 1-10. DOI: 10.1016/j.resconrec.2013.01.009. Jie Dong, Fan Li, Kechang Xie.

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  • Asphalt Pavement Construction - Asphalt Institute

    Is the hot mix asphalt surface stiff enough to resist deformation (ruts or indentations)? This is dependent on many factors, such as stiffness of the original mixture, age of the mix (gets stiffer over time), temperature of the mix during loading, loading itself, duration of applied load, etc.

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  • DeepDyve - Unlimited Access to Peer-Reviewed Journals

    Select data courtesy of the U.S. National Library of Medicine. © 2020 DeepDyve, Inc. All rights reserved.

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  • Energy and exergy analysis in an asphalt plant's rotary …

    1/5/2011 · Exergy analysis: influence of the hot mix temperature and the solids inlet humidity. The solids humidity is a very important parameter to control the performance of an asphalt plant. It depends on the extraction procedure at the quarry, on the manner that the aggregates piles are protected from the rain, and on how the front loader operator picks the aggregates from the piles before charging

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  • Performance of Recycled Hot-Mix Asphalt Mixtures in Georgia

    Hot-mix recycling of asphalt pavements is increasingly being used as one of the major rehabilitation methods by highway agencies throughout the United States. Besides saving in costs and energy, it also conserves natural resources. The Georgia Department

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  • Materials | Free Full-Text | Laboratory Performance of Hot …

    Recently, there has been an increasing interest in the applications of recycled mixtures with a high reclaimed asphalt pavement (RAP) content. However, many government departments are hesitant about the applications of that due to being worried about the durability of its pavement, and few findings has been reported in terms of the percentage of fine reclaimed asphalt pavement (FRAP, 0~5 mm

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  • Asphalt Pavements Research Papers - Academia.edu

    The Use of Reclaimed Asphalt Pavement (RAP) in Hot Mix Asphalt Mixtures has become a regular practice in the United States since the mid to late 1970s. Nowadays, many State DOTs and contractors are very comfortable using RAP contents up to 20%. As the cost of virgin materials continues to rise and the society becoming more aware of

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  • Multivariate data analysis applied in alkali-based …

    1/7/2017 · The multivariate data analysis (PCA and PLS) were especially useful for reducing high-dimension multivariate systems (Godoy et al., 2014). On account of multiple linear regressions, the orthogonal transformation could be used by PCA method to transform the possibly correlated variables base set into a new base set of linearly uncorrelated variables (principal components).

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  • Multivariate data analysis applied in Hot-Mix asphalt …

    A multivariate data analysis was used with environmental data obtained from Hot-Mix asphalt (HMA) plants. The main objectives of the study were to describe and interpret the real "phenomena" that exist on HMA plants; also, to search for the best mixing conditions, i.e. production with less energy consumption and less emissions.

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  • Warm mix asphalt: an overview - ScienceDirect

    1/3/2012 · In a recent study on warm asphalt mixes performed in the Construction Engineering Laboratory at the University of Granada (Research Project n 009, 2011), four mixes were analyzed: a hot asphalt reference mix manufactured at a temperature of 160 C and

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  • Airborne emissions of asphalt/wax blends for warm mix …

    15/10/2017 · Multivariate analysis of variance (MANOVA) was applied to evaluate the presence of significant differences among the mean responses of the samples analyzed under different heating temperatures. Since significant differences among the mean responses obtained under different heating temperatures were observed (Λ* = 3.45E-72, χ 2 (α:0.05,40) = 55.76), the Bonferroni approach was …

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  • Analytical assessment of asphalt odor patterns in hot …

    20/1/2018 · The production of asphalt paving mixtures, consisting of a hot blend of aggregates and asphalt cement, for road pavement construction and maintenance, take place in stationary or mobile plants. Nowadays, there are about 4500 HMA plants both in Europe and in the USA, half of which are also fit for hot and warm recycling ( EAPA, 2017, Paranhos and Petter, 2013 ).

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  • Ternary and Multivariate Quality Control Charts of …

    Analysis of Aggregate Gradation and Packing for Easy Estimation of Hot-Mix-Asphalt Voids in Mineral Aggregate Journal of Materials in Civil Engineering November 2010 Improving Hot Mix Asphalt Production Using Computer Simulation and Real Time Optimization

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  • Analysis of Multivariate Models for Evaluating …

    1/1/2004 · Abstract. Multivariate statistical techniques were used to determine the feasibility of quantifying segregation in hot-mix asphalt pavements. Data obtained by using visual ratings of segregation, nuclear density gauge readings, and laboratory tests at nine field sites as reported by the National Center for Asphalt Technology were analyzed.

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  • HOT MIX ASPHALT PAVEMENT DESIGN GUIDE

    use—1 ton of hot mix asphalt covers 17 square yards,l" thick. 4 Chart 1: Recommended Mixes for Normal HMA Applications (Proposed compaction levels based on NCHRP 9-9 levels @ 4% Per Voids)

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