نتایج جستجو برای: asphalt stability
تعداد نتایج: 306060 فیلتر نتایج به سال:
the performance of asphaltic pavements during their service life is highly dependent on the mechanical properties of the asphaltic layers. therefore, in order to extend their service life, scientists and engineers are constantly trying to improve the mechanical properties of the asphaltic mixtures. one common method of improving the performance of asphaltic mixtures is using different types of ...
The behaviour of an asphalt concrete structure subjected to severe loading, such as blast and impact loadings, is becoming critical for safety and anti-terrorist reasons. With the development of high-speed computational capabilities, it is possible to carry out the numerical simulation of an asphalt concrete structure subjected to blast or impact loading. In the simulation, the constitutive mod...
In the Campeche Knolls, in the southern Gulf of Mexico, lava-like flows of solidified asphalt cover more than 1 square kilometer of the rim of a dissected salt dome at a depth of 3000 meters below sea level. Chemosynthetic tubeworms and bivalves colonize the sea floor near the asphalt, which chilled and contracted after discharge. The site also includes oil seeps, gas hydrate deposits, locally ...
The sustainability movement has established a firm foothold in the Civil Engineering profession. The use of recycled asphalt shingles (RAS) is the latest development in the world of asphalt pavement sustainability. The relative abundance of tear-off shingles and their high asphalt content is driving RAS usage in highway and airfield pavements. However, the ultimate objective of any pavement sys...
This paper conveys the laboratory investigation of storage stability CRM binder as a basic study. The was produced through wet process in laboratory. percentages crumb rubber used for rubberized were 5%, 10%, 15% and 20%. samples prepared according to ASTM D7173. In order evaluate properties each part binders, tests carried out rotational viscosity viscoelasticity, separation index assessed wit...
In order to improve the stability and high temperature behavior of rubber asphalt, deep desulfurization stabilized powder SBS are used prepare composite modified asphalt (Hereinafter: asphalt). this paper, gel chromatography permeation test, Fourier transform infrared spectroscopy test dynamic shear rheology were carried out. Comparative tests conducted on base ordinary asphalt. The change mech...
the purpose of this research was to evaluate the application of recycled aggregates of constructiondebris such as concrete, cement block and rubbles from pars-kangan site in asphalt concrete mix design. toevaluate the performance of aggregates different mix designs with recycled aggregate percentages of 0, 10,30, 50 and bitumen percentages of 4, 4.5, 5, 5.5, 6, and 6.5 were provided and two mar...
Les isothermes d'adsorption du phnol et du 4-chlorophnol en solution dans l'eau sur des asphaltnes floculs en masse et sur des asphaltnes dposs sur de la silice ont t dtermins par analyse chromatographique frontale 293, 298, 303 et 308 K. L'adsorption sur des asphaltnes floculs en masse tait la plus importante avec des isothermes correspondant un mcanisme de Freundlich. La qu...
This study examines the effectiveness of HMA overlay design strategies for the purpose of controlling the development of reflective cracking. A parametric study was conducted using a 3D Finite Element (FE) model of a rigid pavement section including Linear Viscoelastic (LVE) material properties for the Hot Mix Asphalt (HMA) overlay and non-uniform tire-pavement contact stresses. Several asphalt...
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