Systematic error patterns in dynamic modulus predictive models of asphalt concrete

2021 ◽  
pp. 1-16
Author(s):  
Abhary Eleyedath ◽  
Aravind Krishna Swamy
Keyword(s):  
Systematic Error ◽  
Predictive Models ◽  
Asphalt Concrete ◽  
Dynamic Modulus ◽  
Error Patterns

An efficient and robust method for predicting asphalt concrete dynamic modulus

2021 ◽  
pp. 1-12
Author(s):  
Hongren Gong ◽  
Yiren Sun ◽  
Yuanshuai Dong ◽  
Wei Hu ◽  
Bingye Han ◽  
...  
Keyword(s):  
Asphalt Concrete ◽  
Dynamic Modulus ◽  
Robust Method

A Simplified Technique for Measuring Dynamic Modulus of Asphalt Concrete.(Dept.C)

2021 ◽  
Vol 29 (3) ◽  
pp. 1-11
Author(s):  
Mohamed Abdel Motaleb ◽  
Ahmed Mohamady
Keyword(s):  
Asphalt Concrete ◽  
Dynamic Modulus

The Viscoelastic Characteristics of the Asphalt Concrete Modified with Different Synthetic Waxes Using a Modified Huet- Sayegh Model

2017 ◽  
Author(s):  
Grzegorz Mazurek
Keyword(s):  
Asphalt Concrete ◽  
Dynamic Modulus ◽  
Complex Modulus ◽  
Model Parameters ◽  
Fischer Tropsch ◽  
Stiffness Modulus ◽  
Molecular Weights ◽  
Cole Diagram ◽  
Sinusoidal Load ◽  
Viscoelastic Characteristics

The article presents the results of dynamic modulus tests carried on the asphalt concrete (AC16W). The sinusoidal load was applied to the samples in accordance with DTC-CY method. The neat bituminous binder (penetration grade 35/50) was modified by means two synthetic waxes, coming from the Fischer-Tropsch raction, with various molecular weights and softening point temperature results (hard and softer). The relaxation phenomenon in terms of changes in complex modulus and phase angle was evaluated using the modified Huet-Sayegh (2S2P1D). Estimated model parameters pointed out that the addition of the synthetic wax with the high (hard wax) and the low (softer wax) molecular weight raised the stiffness of the bituminous binder in relation to the reference bitumen 35/50. The application of the modified Huet-Sayegh model showed that the presence of the synthetic wax in the bitumen significantly affected the stiffness modulus of considered asphalt concretes. Basing analysis on Cole-Cole diagram it was found significant differences in the viscoelastic behaviour between the reference asphalt concrete and the asphalt concretes with synthetic waxes. In contrast, there were no significant differences between viscoelastic properties of tested asphalt concretes modified, used in the experiment, synthetic waxes. Furthermore, the sensitivity to the loading time of asphalt concretes containing both synthetic waxes was marginal.

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