A constitutive model for simulation of water to ice phase change in asphalt mixtures

2014 ◽  
pp. 555-564
Keyword(s):  
Constitutive Model ◽  
Phase Change ◽  
Asphalt Mixtures ◽  
Ice Phase

scholarly journals Rheological and Interaction Analysis of Asphalt Binder, Mastic and Mortar

Materials ◽  
2019 ◽  
Vol 12 (1) ◽  
pp. 128 ◽  
Author(s):  
Meng Chen ◽  
Barugahare Javilla ◽  
Wei Hong ◽  
Changluan Pan ◽  
Martin Riara ◽  
...  
Keyword(s):  
Phase Change ◽  
Interaction Analysis ◽  
Asphalt Binder ◽  
Asphalt Mixtures ◽  
Physical Interaction ◽  
Fine Aggregate ◽  
Mineral Filler ◽  
Asphalt Mastic ◽  
Fine Aggregates ◽  
Asphalt Mortar

This paper investigated the rheological properties of asphalt binder, asphalt mastic and asphalt mortar and the interaction between asphalt binder, mineral filler and fine aggregates. Asphalt binder, mastic and mortar can be regarded as the binding phase at different scales in asphalt concrete. Asphalt mastic is a blend of asphalt binder and mineral filler smaller than 0.075 mm while asphalt mortar consists of asphalt binder, mineral filler and fine aggregate smaller than 2.36 mm. The material compositions of mastic and mortar were determined from the commonly used asphalt mixtures. Dynamic shear rheometer was used to conduct rheological analysis on asphalt binder, mastic and mortar. The obtained test data on complex modulus and phase angle were used for the construction of rheological master curves and the investigation of asphalt-filler/aggregate interaction. Test results indicated a modulus increase of three- to five-fold with the addition of filler and a further increase of one to two orders of magnitude with cumulative addition of fine aggregates into asphalt binder. Fine aggregates resulted in a phase change for mortar at high temperatures and low frequencies. The filler had stronger physical interaction than fine aggregate with an interaction parameter of 1.8–2.8 and 1.15–1.35 respectively. Specific area could enhance asphalt-filler interaction. The mastic and mortar modulus can be well predicted based on asphalt binder modulus by using particle filling effect. Asphalt mortar had a significant modulus reinforcement and phase change and thus could be the closest subscale in terms of performance to that of asphalt mixtures. It could be a vital scale that bridges the gap between asphalt binder and asphalt mixtures in multiscale performance analysis.

Test and Select of Carrier of Phase Change Materials for Asphalt Mixtures

2012 ◽  
Vol 511 ◽  
pp. 60-63
Author(s):  
Yu Zheng Ren ◽  
Jie Zhu Liu ◽  
Biao Ma ◽  
Sha Sha Wang
Keyword(s):  
Carbon Black ◽  
Phase Change ◽  
Phase Change Materials ◽  
Storage Capacity ◽  
Heat Storage ◽  
Physical Adsorption ◽  
Asphalt Mixture ◽  
Asphalt Mixtures ◽  
Adsorption Method ◽  
Micro Morphology

Directly mixing the PCM to asphalt mixture may adversely affect mixture performance. By the experiment of SEM, the diffusion-absorption circle testing and the DSC, the micro-morphology and the adsorption characteristics to PCM of four carriers and the thermal properties of the composite shape-stabilized phase change materials (CSPCM) were analyzed. The results showed that the activated carbon, the floating bead and the white carbon black have more developed porous structure. The white carbon black has the best effect on the adsorption of PCM. The shape-stabilized PCM prepared by the physical adsorption method has the leakage problem. The CSPCM with the white carbon black carrier has the best heat storage capacity. The white carbon black is the best carrier of PCM for asphalt mixture.

Quantitative stability analyses of multiwall carbon nanotube nanofluids following water/ice phase change cycling

2016 ◽  
Vol 28 (5) ◽  
pp. 055702 ◽  
Author(s):  
Jason Ivall ◽  
Gabriel Langlois-Rahme ◽  
Sylvain Coulombe ◽  
Phillip Servio
Keyword(s):  
Carbon Nanotube ◽  
Phase Change ◽  
Multiwall Carbon Nanotube ◽  
Quantitative Stability ◽  
Water Ice ◽  
Stability Analyses ◽  
Multiwall Carbon ◽  
Ice Phase

Investigation of microscopic mechanisms for water-ice phase change propagation control

2022 ◽  
Vol 184 ◽  
pp. 122357
Author(s):  
Yu-Kai Weng ◽  
Seungha Shin ◽  
Kenneth D. Kihm ◽  
Mohammad Bahzad ◽  
Douglas S. Aaron
Keyword(s):  
Phase Change ◽  
Change Propagation ◽  
Water Ice ◽  
Ice Phase

scholarly journals Investigation of Water to Ice Phase Change in Porous Media by Ultrasonic and Dielectric Measurements

2009 ◽  
Vol 23 (2) ◽  
pp. 69-90 ◽  
Author(s):  
Antonin Fabbri ◽  
Teddy Fen-Chong ◽  
Aza Azouni ◽  
Jean-François Thimus
Keyword(s):  
Porous Media ◽  
Phase Change ◽  
Dielectric Measurements ◽  
Ice Phase
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