Development of asphalt mixture density estimation model applicable to wide air void content range using ground penetrating radar

Cui, Lilong; Ling, Tianqing; Zhang, Zeyu; Xin, Jingzhou; Li, Rukai

doi:10.1016/j.conbuildmat.2021.123521

Cited by 19 publications

(3 citation statements)

References 28 publications

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“…The volumetric properties of a compacted asphalt mixture are essential parameters that affect the long-term performance of the mixture in the field [35]. For example, the air void content of a dense asphalt mixture is recommended to be within the range of 3-8% during pavement service life to avoid early distress [36]. In this study, the air void content (V a ) of each specimen was calculated from the measurements of the theoretical maximum specific gravity (G mm ) and the bulk specific gravity (G mb ) of each specimen, following Equation (1).…”

Section: Air Void Contentmentioning

confidence: 99%

Evaluation of an Asphalt Mixture Containing a High Content of Reclaimed Asphalt Pavement (RAP) Materials with Epoxy Asphalt

Elnihum,

Lu,

Alharthai

et al. 2024

Sustainability

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The average content of reclaimed asphalt pavement (RAP) materials in asphalt mixtures for new pavements is around 22% in the current paving practices in the United States. Increasing this content has significant economic and environmental benefits. This study explored the approach of producing asphalt mixtures with 100% RAP materials by adding a small percentage of epoxy asphalt. Specimens of 100% RAP mixtures with low contents of epoxy asphalt were fabricated and evaluated in the laboratory for their properties related to pavement performance, including Marshall stability and flow, indirect tensile strength, resistance to moisture damage, resistance to fatigue damage, and fracture resistance. The results showed that the specimens made of 100% RAP materials selected in this study without a new binder or rejuvenator had low workability and high Marshall stability and indirect tensile strength but poor resistance to moisture damage and fatigue damage. A low percentage (0.5 to 2%) of epoxy asphalt significantly improved the resistance to moisture and fatigue damage of the 100% RAP mixture, and this improvement increased with the epoxy asphalt content. The fracture resistance of the 100% RAP mixture was also significantly improved by a low dosage of epoxy asphalt at a low temperature (8 °C), but the improvement was less significant at a moderate temperature of 25 °C.

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Section: Air Void Contentmentioning

confidence: 99%

Evaluation of an Asphalt Mixture Containing a High Content of Reclaimed Asphalt Pavement (RAP) Materials with Epoxy Asphalt

Elnihum,

Lu,

Alharthai

et al. 2024

Sustainability

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“…Kassem et al 19 further refined this approach by employing a compaction tracking system to establish the relationship between VA and CI. Advances in technology have also enabled the monitoring of asphalt mixture density through radar technology 20 , 21 , with improvements in VA percentage measurements being made utilizing a ground-penetrating radar (GPR) array system as demonstrated by Hoegh et al 22 . Additionally, the distribution of VA within open-grade asphalt mixtures has been explored through x-ray computed tomography and image analysis 23 – 25 .…”

Section: Introductionmentioning

confidence: 99%

A formulation for asphalt concrete air void during service life by adopting a hybrid evolutionary polynomial regression and multi-gene genetic programming

Ghanizadeh,

Amlashi,

Bahrami

et al. 2024

Sci Rep

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Bitumen, aggregate, and air void (VA) are the three primary ingredients of asphalt concrete. VA changes over time as a function of four factors: traffic loads and repetitions, environmental regimes, compaction, and asphalt mix composition. Due to the high as-constructed VA content of the material, it is expected that VA will reduce over time, causing rutting during initial traffic periods. Eventually, the material will undergo shear flow when it reaches its densest state with optimum aggregate interlock or refusal VA content. Therefore, to ensure the quality of construction, VA in asphalt mixture need to be modeled throughout the service life. This study aims to implement a hybrid evolutionary polynomial regression (EPR) combined with a teaching–learning based optimization (TLBO) algorithm and multi-gene genetic programming (MGGP) to predict the VA percentage of asphalt mixture during the service life. For this purpose, 324 data records of VA were collected from the literature. The variables selected as inputs were original as-constructed VA, $${VA}_{orig}$$ VA orig (%); mean annual air temperature, $$MAAT$$ MAAT (°F); original viscosity at 77 °F, $${\eta }_{orig,77}$$ η o r i g , 77 (Mega-Poises); and $$time$$ time (months). EPR-TLBO was found to be superior to MGGP and existing empirical models due to the interquartile ranges of absolute error boxes equal to 0.67%. EPR-TLBO had an R2 value of more than 0.90 in both the training and testing phases, and only less than 20% of the records were predicted utilizing this model with more than 20% deviation from the observed values. As determined by the sensitivity analysis, $${\eta }_{orig,77}$$ η o r i g , 77 is the most significant of the four input variables, while time is the least one. A parametric study showed that regardless of $$MAAT$$ MAAT , $${\eta }_{orig,77},$$ η o r i g , 77 , of 0.3 Mega-Poises, and $${VA}_{orig}$$ VA orig above 6% can be ideal for improving the pavement service life. It was also witnessed that with an increase of $$MAAT$$ MAAT from 37 to 75 °F, the serviceability of asphalt concrete takes 15 months less on average.

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“…Oro tuštymių kiekis yra viena svarbiausių fizikinių asfalto savybių, turinčių įtaką asfalto dangos naudojimo laikui ir kelio eksploatacinių savybių kaitai (Decker, 2017). Oro tuštymių kiekio padidėjimas 1 % (daugiau nei 7 %) gali būti apie 10 % trumpesnės asfalto dangos funkcionavimo trukmės priežastis (Cui et al, 2021) ir 5 % sumažinti asfalto standį (Wang et al, 2022).…”

Section: Asfalto Sluoksnių Sutankinimo Laipsnio Ir Oro Tuštymių Kieki...unclassified

Asfalto sluoksnių sutankinimo laipsnio nustatymas neardomuoju georadaro metodu kelių tiesybos darbų kokybės kontrolei gerinti

Baltrušaitis¹

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Vadovas prof. dr. Audrius VAITKUS (Vilniaus Gedimino technikos universitetas, statybos inžinerija -T 002). Vilniaus Gedimino technikos universiteto Statybos inžinerijos mokslo krypties disertacijos gynimo taryba: Pirmininkas prof. dr. Darius BAČINSKAS (Vilniaus Gedimino technikos universitetas, statybos inžinerija -T 002). Nariai: dr. Viktors HARITONOVS (Rygos technikos universitetas, statybos inžinerija -T 002), doc. dr. Vaidas LUKOŠEVIČIUS (Kauno technologijos universitetas, transporto inžinerija -T 003), prof. habil. dr. Henrikas SIVILEVIČIUS (Vilniaus Gedimino technikos universitetas, statybos inžinerija -T 002), doc. dr. Viktoras VOROBJOVAS (Vilniaus Gedimino technikos universitetas, statybos inžinerija -T 002). Disertacija bus ginama viešame Statybos inžinerijos mokslo krypties disertacijos gynimo tarybos posėdyje 2022 m. lapkričio 25 d. 10 val. Vilniaus Gedimino technikos universiteto senato posėdžių salėje.

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Development of asphalt mixture density estimation model applicable to wide air void content range using ground penetrating radar

Cited by 19 publications

References 28 publications

Evaluation of an Asphalt Mixture Containing a High Content of Reclaimed Asphalt Pavement (RAP) Materials with Epoxy Asphalt

Evaluation of an Asphalt Mixture Containing a High Content of Reclaimed Asphalt Pavement (RAP) Materials with Epoxy Asphalt

A formulation for asphalt concrete air void during service life by adopting a hybrid evolutionary polynomial regression and multi-gene genetic programming

Asfalto sluoksnių sutankinimo laipsnio nustatymas neardomuoju georadaro metodu kelių tiesybos darbų kokybės kontrolei gerinti

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