Results 281 to 290 of about 203,665 (317)

Time–Temperature Superposition and AASHTO MP1a Critical Temperature for Low-temperature Cracking

International Journal of Pavement Engineering, 2004
Thermal stress calculations performed as part of the AASHTO MP1a low-temperature criterion are based on stiffness master curves generated from test data obtained at two temperatures. The time–temperature superposition (TTS) principle is considered valid although no verification of the validity has been reported so far.
Mihai O. Marasteanu, Arindam Basu, Simon A.M. Hesp, Vaughan Voller   +3 more
openaire   +1 more source

Low-temperature tensile behaviour of asphalt binders: Application of loading time–temperature–conditioning time superposition principle

Construction and Building Materials, 2011
Abstract Thermal cracking of bituminous layers is one of the main modes of failure for asphalt pavements. This distress is highly related to the rheological properties of asphalt binders. The purpose of this study was to investigate the low-temperature behaviour of asphalt binders by performing Direct Tension Tests (DTTs) according to Superpave ...
G. CERNI, F. CARDONE, COLAGRANDE, SANDRO
openaire   +2 more sources

Time-Temperature and Time-Aggregate Gradation Superposition in Asphalt Mixes

Road Materials and Pavement Design, 2004
This study was devoted to evaluate the effect of aggregate gradation, temperature, and type of asphalt cement on the permanent deformation of Hot-Mix Asphalt (HMA). An experimental program was conducted to characterize the viscoelastic deformation response of asphalt mixture using the static creep test.
openaire   +1 more source

Time–temperature superposition of time‐dependent birefringence for low‐density polyethylene

Journal of Polymer Science Part A-2: Polymer Physics, 1967
AbstractThe time‐dependent birefringence has been measured simultaneously with the stress relaxation on quenched and annealed low‐density polyethylene at various temperatures from 10 to 70°C. The strain‐optical coefficient increases generally with increasing time, and approaches the equilibrium value, which depends upon the temperature. When the strain‐
Shigeharu Onogi, Tadahiro Asada, Yoshiharu Fukui, Takeo Fujisawa   +3 more
openaire   +1 more source

Time–temperature superposition

2021
Pouria Hajikarimi, Fereidoon Moghadas Nejad   +1 more
openaire   +1 more source

Time‐temperature superpositioning of viscosity‐time profiles of three high temperature epoxy resins

Polymer Engineering & Science, 1974
AbstractThe chemo‐rheological behavior has been elucidated for three high temperature epoxy resins. Constant temperature and shear stress measurements were made on a modified Weissenberg Rheogoniometer. Curing behavior of various temperatures is unified by a time‐temperature superposition method. The curing rate of one resin, Ferro E‐293, is limited by
openaire   +1 more source

Time–temperature superposition of the dynamic birefringence of polyethylene

Journal of Polymer Science Part A-2: Polymer Physics, 1967
AbstractThe dynamic strain‐optical coefficient of low‐density polyethylene is found to decrease with increasing frequency and increase with increasing temperature (at temperatures up to 60°C.). It is found that a series of curves representing the real, K′, and imaginary, K″, parts of the frequency variation of the strain‐optical coefficient obtained at
A. Takeuchi, R. S. Stein
openaire   +1 more source

Time-temperature superposition method for glass transition temperature of plastic materials

Materials Science and Engineering: A, 2000
Abstract A new method has been proposed to determine glass transition temperature of plastic materials complying time-temperature superposition (TTS) with a dynamic mechanical analyser (DMA). The principle of this new method is to detect the change in response of plastic materials to multi-frequency dynamic loading over glass transition interval. The
openaire   +1 more source

Time‐temperature superposition for polypropylene

Journal of Polymer Science Part B: Polymer Letters, 1964
R. C. Laible, R. Meredith
openaire   +1 more source

Breast Cancer Statistics, 2022

Ca-A Cancer Journal for Clinicians, 2022
Hyuna Sung, Kimberly D Miller, Rebecca L Siegel   +2 more
exaly