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Showing 1 to 15 of 15 for “"Asphalt Materials"”.
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An acoustic emission-based test to evaluate low temperature behavior of asphalt materials
Low temperature cracking in asphalt pavements located in cold climates is a major cause of pavement deterioration. Accurate evaluation of low temperature cracking behavior of asphalt materials is necessary in order to design pavements that are resistant to thermally induced cracking. Detrimental …
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Effect of specimen geometry and test configuration on the fracture process zone for asphalt materials
… States and elsewhere in the world, recycled materials are commonly incorporated into asphalt mixtures, to provide environmental and economic benefits by decreasing the use of virgin materials, such as natural or quarried aggregates and asphalt binder, in newly designed asphalt mixtures. …
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Development of an alternative test to obtain asphalt mixture creep compliance at low temperatures
… compliance tests are widely used in the pavement materials community to characterize the low temperature fracture and creep properties of asphalt materials. The information from these tests enables pavement engineers to design and construct asphalt pavements that can withstand the stresses caused …
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Fracture Tests for Bituminous-Aggregate Mixtures: Laboratory and Field Investigations
… deterioration has been the cracking of the asphalt materials. This study investigates the ability to apply fracture mechanics principles to study asphalt concrete cracking through experimental techniques. Single-edge notched beam (SE(B)) and disk-shaped compact tension (DC(T)) test …
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Investigation of cracking resistance of recycled Superpave mixtures
… economical and environmentally friendly recycled asphalt materials has become increasingly popular for asphalt pavement construction. Although reclaimed asphalt pavement (RAP) and recycled asphalt shingles (RAS) are typically used in hot-mix asphalt, increasing the amount of RAP and RAS materials …
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Asphalt mixture evaluation using performance space diagrams, digital image correlation, and discrete element modeling
The use of asphalt modifiers and recycled asphalt materials in asphalt concrete has generated a need for greater laboratory evaluation. Asphalt modifiers, such as styrene butadiene styrene (SBS) polymer, bio-modifiers, and warm mix asphalt processes, and recycled asphalt materials, such as recycled …
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Predicting failure behavior of polymeric and asphalt composites using damage models
… the failure behavior of two types of composite materials using damage models within the framework of ABAQUS finite element software. The failure behavior of an IM7/977-2 carbon epoxy composite material subjected to a Mode I delamination is predicted using traction-separation and bulk material …
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Application of cepstrum techniques and a guard tube to the measurement of the normal incident sound power absorption coefficient of road surfaces in-situ
… speeds in excess of 50 km/hr. Open pore bitumen asphalt material has been found to present a sound absorbing surface that is able to contribute to the mitigation of road traffic noise. This has generated research into the production of sound absorbing road surface materials which, in turn, has …
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Study of properties of sand asphalt using a torsional rheometer
The modeling of Sand Asphalt and experiments to measure their rheological properties are of vital concern to many industrial processes especially highway and roadway pavement construction industry. A variety of hot mix asphalt mixtures are used in highway and runway pavement construction, with each …
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Impact of laboratory simulated aging on asphalt concrete flexibility
The aging of asphalt materials is considered an important factor contributing to the deterioration of asphalt concrete (AC) pavements. Asphalt binder aging is a combination of various complex mechanisms that affect its rheological properties causing AC to become stiffer and more brittle. As a …
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The effect of mica on the aging of asphalt binder
Asphalt Concrete (AC) consists of approximately 95% aggregate, by weight. Of this 95%, about 6% is smaller than 0.075 mm in size (passing the #200 sieve and called fines). The fines often contain mica. Mica is a formation of silicate minerals having perfect basal cleavage. It can be peeled apart in …
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Multi-scale studies of aging, rejuvenation, and extrinsic self-healing in bituminous materials
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2026-05-01