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Evaluation of methodologies for aging simulation of asphaltic mastics in laboratoryAvaliação de metodologias para a simulação de envelhecimento de mástiques asfálticos em laboratório
(2017-07-01)
The aging in laboratory of asphalt mastics, which have mineral fillers, should be analyzed differently from existing procedures for asphalt binders. For samples with filler, it is suspected that the decantation of the ...
Comparison of the n-Alkanes and Polycyclic Aromatic Hydrocarbons Concentrations in the Atmosphere during the Preparation of Warm and Hot Mixtures Asphalt for Pavements
(SOC BRASILEIRA QUIMICASAO PAULO, 2012)
Asphalt binder is used in the production of hot mixes asphalt (HMA) for paving and, due to the high temperatures used, generates fumes thatcontainn-alkanes and polycyclic aromatic hydrocarbons (PAH). Asphalt mixes prepared ...
Improvements on asphalt mixtures rutting performance characterization by the use of low shear viscosity
(Springer, 2012-07)
The relationship between the rutting performance of dense asphalt concretes and the low shear viscosity (LSV) of different asphalt binders was analysed in a previous work. A LSV limit was found for the original asphalt to ...
Reclaimed asphalt binder aging and its implications in the management of RAP stockpiles
(Elsevier, 2015)
Reclaimed asphalt pavement (RAP) is a granular composite geomaterial that is highly reactive to the environment under normal atmospheric conditions. The binder aging processes that contribute to pavement deterioration do ...
Performance characteristics of fiber modified hot mix asphalt
(Elsevier B.V., 2018-07-10)
A mixture of polypropylene and aramid fibers was used in this study to evaluate the performance characteristics of a modified asphalt mixture. A conventional dense-graded hot mix asphalt (HMA) used in Sao Paulo, Brazil was ...
Use of scrap tire rubber in place of SBS in modified asphalt as an environmentally correct alternative for Brazil
(Elsevier B.V., 2012-09-01)
Reusing scrap tires has become a worldwide challenge, especially due to the great difficulty in finding ecologically and economically feasible ways to dispose of them. This has led to the creation of specific programs and ...
Multiscale Curvature Analysis of Asphaltic Aggregate Particles
(ASCE-AMER SOC CIVIL ENGINEERS, 2010)
A new method for characterization and analysis of asphaltic mixtures aggregate particles is reported. By relying on multiscale representation of the particles, curvature estimation, and discriminant analysis for optimal ...
Comparison of the n-alkanes and polycyclic aromatic hydrocarbons concentrations in the atmosphere during the preparation of warm and hot mixtures asphalt for pavements
(Sociedade Brasileira de Química, 2012)
O asfalto é utilizado na produção de misturas asfálticas a quente (HMA) para a pavimentação e, devido às altas temperaturas empregadas, gera fumos que contêm n-alcanos e hidrocarbonetos policíclicos aromáticos (HPAs). As ...
Effect of bituminous impregnation on nonwoven geotextiles tensile and permeability properties
(ELSEVIER SCI LTD, 2011)
Geosynthetics interlayer systems are effective techniques to control reflective cracking in damaged pavements. It comprises the inclusion of nonwoven geotextiles between the damaged layer and the new overlay of the pavement ...