Results 181 to 190 of about 2,711 (222)
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Effect of Asphaltenes on SHRP Superpave Specifications
Energy & Fuels, 1999The composition of an asphalt can greatly affect its physical and chemical properties. Increasing the asphaltene content creates an asphalt with superior high-temperature properties while having a minimum impact on the low-temperature properties. Increasing the saturate content improves the low-temperature properties but hurts the high-temperature ...
Christopher H. Domke +2 more
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An Evaluation of Superpave Binder Aging Methods
International Journal of Pavement Engineering, 2004The objective of this study is to evaluate the rolling thin film oven (RTFO), and the pressure aging vessel (PAV) binder aging methods recommended by superpave. Test sections for this study were set up in 1992 and 1993 using six highways in five states: US 280 and AL 86 in Alabama, I-90 in Idaho, I-40 in New Mexico, I-385 in South Carolina, and STH 67 ...
R.B. Mallick, E.R. Brown †
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Accelerated Life Modeling of Superpave Mixtures
T&DI Congress 2014, 2014This study focused on reducing duration of the Hamburg wheel-tracking device (HWTD) test. Four fine-graded Superpave mixtures with 12.5-mm Nominal Maximum Aggregate Size (NMAS) were selected for this study. The average number of wheel passes to a 20-mm rut depth in the HWTD tests was used to build accelerated life models with a Weibull distribution ...
C. Manandhar +3 more
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Field Conditioning of Superpave Asphalt Mixes
Transportation Research Record: Journal of the Transportation Research Board, 2001Failing volumetric properties (low air voids and voids in mineral aggregate) have been a common occurrence in the production of Superpave mixes in Florida and nationally. There are several potential causes of this problem including the effect of asphalt absorption as related to conditioning time.
James A. Musselman +2 more
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Modeling and Analysis of the Structure of Superpave Gyratory Compactor
Advanced Materials Research, 2009Superpave Gyratory Compactor (SGC) is used to design high quality mix asphalt specimen. In this research the structure of the SGC was analyzed, and the methods used in the Stewart mechanism are adopted. Based on the hypothesis that the parts made up of the mechanism are rigid body, no deformation exists in the connecting rods. Equations are deduced and
Wei Jiang +3 more
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Investigation of the Gyration Angle of Superpave Gyratory Compactors
Journal of Materials in Civil Engineering, 2004The superior performing asphalt pavement (Superpave) hot mix asphalt (HMA) mix design system was a principal development of the Strategic Highway Research Program (SHRP). In the Superpave mix design system, the Superpave gyratory compactor (SGC) was developed as a laboratory HMA compactor, targeted at better simulating the field compaction of HMA mixes.
M. Shane Buchanan +2 more
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Current Status of Superpave Binder Specification
Road Materials and Pavement Design, 2009(2009). Current Status of Superpave Binder Specification. Road Materials and Pavement Design: Vol. 10, SPECIAL ISSUE ON ASPHALT MATERIALS (ICAM 2009—China), pp. 13-24.
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Superpave grading for high traffic volumetric criteria
2013 IEEE Business Engineering and Industrial Applications Colloquium (BEIAC), 2013The Superpave mix design system is a comprehensive method of designing paving mixes determined by the traffic, climate, and structural section of a particular pavement site. The first project of the Superpave mix design in Malaysia was in 1996. The application was in the technical specifications for runway and taxiway pavement for Kuala Lumpur ...
Nuryantizpura Mohamad Rais +3 more
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Issues Pertaining to Use of Superpave Gyratory Compactor
Transportation Research Record: Journal of the Transportation Research Board, 1996Agencies, industry, academia, and others are rapidly implementing the products of the asphalt research portion of the Strategic Highway Research Program, products collectively referred to as Superpave. One of the principal products has been the Superpave gyratory compactor (SGC).
Robert B. McGennis +3 more
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Applicability of Superpave to Modified Asphalts: A Mixture Study
Transportation Research Record: Journal of the Transportation Research Board, 1998Superpave binder and mixture specifications are currently being reviewed for their applicability to modified asphalts. This study was designed to evaluate a series of modified binders with the same Superpave performance grade (PG 76-22). The experiment was based on the following hypothesis: The performance characteristics for a given asphalt mixture ...
Stephen D. Jones +3 more
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