Results 161 to 170 of about 4,543 (217)

Oregon's Superpave Implementation

1997
Oregon Department of Transportation (ODOT) has specified performance-based asphalts (PBAs) since 1991. Developed by the Pacific Coast Conference on Asphalt Specifications (PCCAS) in 1990, the PBA concept uses conventional test methods for classification and facilitates binder selection based on climatic conditions.
RB Leahy, SB Cramer, GO Thompson
openaire   +1 more source

Static creep of modified superpave asphalt concrete mixtures using crumb tire rubber, microcrystalline synthetic wax, and nano-silica

International Journal of Pavement Engineering, 2019
This research investigates the effect of adding three different modifiers to laboratory-prepared Superpave asphalt concrete mixtures to evaluate their ability to strengthen and reinforce asphalt concrete mixtures and improve their rutting resistance. The
A. Al-Omari, M. Khasawneh, Taleb M. Al-Rousan, Saja Faris Al-Theeb   +3 more
semanticscholar   +1 more source

Colorado Begins Superpave Validation

1997
One of the first applications of Superpave technology in Colorado was at a high traffic intersection near Denver in 1994. The project was developed to demonstrate whether Superpave asphalt technology could solve a recurring problem of rutting in a very severe traffic environment.
T Aschenbrener, R LaForce, S Shuler
openaire   +1 more source

Effect of Asphaltenes on SHRP Superpave Specifications

Energy & Fuels, 1999
The 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, Richard R. Davison, Charles J. Glover   +2 more
openaire   +1 more source

Assessment of Mechanical Stability Performance of Asphalt Mixture Using Superpave Gyratory Compactor

Journal of Transportation Engineering Part B Pavements, 2019
This study focused on developing a gyratory compactor to be used as a basis for measuring the stability of asphalt mixtures without the need for additional equipment or additional time.
M. Fattah, M. Hilal, Huda B. Flyeh
semanticscholar   +1 more source

Fatigue Characteristics of Superpave and Hveem Mixtures

Journal of Transportation Engineering, 2005
A study was conducted to evaluate the fatigue characteristics of hot mix asphalt (HMA) mixtures designed using the Superpave volumetric method and Nevada's Hveem method. Fatigue characteristics were evaluated using the flexural beam fatigue test under the strain-controlled mode of loading.
Elie Y. Hajj, Peter E. Sebaaly, Dean Weitzel   +2 more
openaire   +1 more source

Estimation of Lives of Deficient Superpave Pavements

Transportation Research Record: Journal of the Transportation Research Board, 2008
Nonconforming Superpave ® mixtures are often encountered during construction of asphalt-surfaced pavements in Kansas. There is no rational method available to find the potential reduction in life of these pavements.
Chandra Manandhar, Mustaque Hossain, Paul Nelson, Cliff Hobson   +3 more
openaire   +2 more sources

The influence of climate change in Superpave binder selection for Chile

International Journal on Road Materials and Pavement Design, 2018
One of the relevant effects of anthropogenic climate change has been an anomalous increase in temperature near the earth’s surface. In the context of pavement engineering, materials that are thermally susceptible could be affected by these changes.
R. Delgadillo, Leandro Arteaga, Carlos Wahr, R. Alcafuz   +3 more
semanticscholar   +1 more source

Field Conditioning of Superpave Asphalt Mixes

Transportation Research Record: Journal of the Transportation Research Board, 2001
Failing 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, Gale C. Page, Gregory A. Sholar   +2 more
openaire   +1 more source

An Evaluation of Superpave Binder Aging Methods

International Journal of Pavement Engineering, 2004
The 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 †
openaire   +1 more source