Time-Temperature Superposition for HMA with Growing Damage and Permanent Strain in Confined Tension and Compression

Yun, Taeyoung; Underwood, B. Shane; Kim, Y. Richard

doi:10.1061/(asce)mt.1943-5533.0000039

Cited by 34 publications

(2 citation statements)

References 4 publications

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“…Equation (1) shows that the dynamic modulus of the reduced frequency applied to the mastercurve and the dynamic modulus of a certain frequency and temperature are the same (Yun et al, 2009).…”

Section: The Mastercurve Conceptmentioning

confidence: 99%

Mastercurve-based image analysis method for curing compound quality control

et al. 2016

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Curing compounds are widely used to cure concrete pavement because of their high efficiency and simple usability. Image processing has been proposed to facilitate quality control during construction by including a white-colored pigment in the sprayed compound. However, errors can occur as a result of a number of variables such as camera aperture, shutter speed, and illuminance during the picture-taking process. This paper proposes a method in which the "mastercurve" concept is applied to standardize the camera aperture and shutter speed. The shift function, y = 0.0067x 2 − 0.2305x + 1.4171, is applied between the aperture and shutter speed, and a brightness value enabled to classify curing compounds under the same illuminance condition. In addition, the correlation between the illuminance and brightness of the images are identified via regression analysis. The results of analysis of sample images under various conditions indicate that the relative application rate of the curing compound can be evaluated. These results demonstrate that the proposed image processing methodology is suitable for curing compound quality control.

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Section: The Mastercurve Conceptmentioning

confidence: 99%

Mastercurve-based image analysis method for curing compound quality control

et al. 2016

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“…However, if the concept of t-TS is valid even with growing damage, the number of tests can be reduced signi ficantly for the prediction of asphalt concrete behavior for a wide range of temperatures. The many advantages of the t-TS principle are such that many attempts have been made by several researchers to extend the t-TS principle so that it can be applied to materials outside the range of linear viscoelastic behavior, even to include failure conditions (3)(4)(5).…”

mentioning

confidence: 99%

Verification of Time–Temperature Superposition Principle for Shear Bond Failure of Interlayers in Asphalt Pavements

Cho

Kim

2016

Transportation Research Record

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Asphalt pavement structures are composed of different asphalt concrete layers with surface layers that are bonded together with a tack coat. Thus, interlayer bonding between pavement layers is a key factor that affects the performance of any pavement structure. However, relatively little attention has been given to the characterization and modeling of interlayer bonding or to associated test methods that can be used in the laboratory to evaluate the bond strength between asphalt concrete layers. This paper presents a test method for evaluating interface bonding between asphalt concrete layers in shear mode. Moreover, the time–temperature superposition (t-TS) principle with growing damage in shear failure mode is examined to characterize the shear bond strength of asphalt concrete pavements for a wide range of temperatures. The subsequent validation of the t-TS principle allows the shear bond strength between asphalt layers at various temperatures and loading rates to be determined with only three or four shear tests. Comparison of the shear stress values calculated from a mechanistic pavement analysis program for a critical condition with the shear strength values at the condition determined from the prediction model developed in this study can provide the foundation for a mechanistic design to prevent shear bond failure between asphalt layers.

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Modeling of viscoplastic rate-dependent hardening-softening behavior of hot mix asphalt in compression

Yun

Kim

2010

Mech Time-Depend Mater

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Time-Temperature Superposition for HMA with Growing Damage and Permanent Strain in Confined Tension and Compression

Cited by 34 publications

References 4 publications

Mastercurve-based image analysis method for curing compound quality control

Mastercurve-based image analysis method for curing compound quality control

Verification of Time–Temperature Superposition Principle for Shear Bond Failure of Interlayers in Asphalt Pavements

Modeling of viscoplastic rate-dependent hardening-softening behavior of hot mix asphalt in compression

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