نتایج جستجو برای: asphalt mixtures

تعداد نتایج: 54900  

Journal: :Journal of Traffic and Transportation Engineering (English Edition) 2020

Journal: :Trends in Civil Engineering and its Architecture 2019

Journal: :Materials 2023

In order to study the self-healing performance of macroscopic fractures asphalt mixtures, semicircular bending (SCB) tests were used test 90# base SBS (Styrene–Butadiene–Styrene) modified and + CR (Chloroprene Rubber) composite mixtures. The F-H-F (the mixture specimen was fatigued for a certain number times, then healed under conditions, until destroyed) carried out, fatigue life recovery rate...

Journal: :The Annals of occupational hygiene 2009
Jon R Sobus Michael D McClean Robert F Herrick Suramya Waidyanatha Frank Onyemauwa Lawrence L Kupper Stephen M Rappaport

Airborne emissions from hot asphalt contain mixtures of polycyclic aromatic hydrocarbons (PAHs), including several carcinogens. We investigated urinary biomarkers of three PAHs, namely naphthalene (Nap), phenanthrene (Phe), and pyrene (Pyr) in 20 road-paving workers exposed to hot asphalt and in 6 road milling workers who were not using hot asphalt (reference group). Our analysis included basel...

Journal: :Proceedings of the Japan Society of Civil Engineers 1972

Journal: :Engineering Solid Mechanics 2021

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