Equivalent Stiffness Modulus of Polyester Fiber Reinforced Asphalt Concrete

2007 ◽  
Vol 2 (1) ◽  
pp. 21-24
Author(s):  
Nai-sheng Guo ◽  
Ying-hua Zhao ◽  
Hong-tao Zhang
Keyword(s):  
Asphalt Concrete ◽  
Polyester Fiber ◽  
Equivalent Stiffness ◽  
Fiber Reinforced ◽  
Stiffness Modulus

scholarly journals Viscoelastic Mechanical Model of Asphalt Concrete Considering the Influence of Characteristic Parameter of Fiber Content

2021 ◽  
Vol 31 (5) ◽  
pp. 283-290
Author(s):  
Chunshui Huang ◽  
Danying Gao ◽  
Peibo You
Keyword(s):  
Aspect Ratio ◽  
Asphalt Concrete ◽  
Mechanical Model ◽  
Concrete Beams ◽  
Volume Ratio ◽  
Characteristic Parameter ◽  
Fiber Content ◽  
Polyester Fiber ◽  
Fiber Reinforced ◽  
Creep Tests

This paper carries out bending creep tests on polyester fiber-reinforced asphalt concrete beams, and investigates how the volume ratio and aspect ratio of the fibers influence the parameters of viscoelastic mechanical model and the viscoelastic performance of the asphalt concrete. The results show that: with the growing volume ratio and aspect ratio of the fibers, the midspan deflection and bottom flexural-tensile strain of asphalt concrete beams first dropped and then rose over time; the characteristic parameter of fiber content (FCCP) could reflect the overall effects of the volume ratio and aspect ratio of the fibers. On this basis, a viscoelastic mechanical model was established for the asphalt concrete in the light of the influence of FCCP. The test and theoretical results show that, in our tests, the optimal volume ratio of fibers, optimal aspect ratio of fibers, and optimal FCCP are 0.348, 324, and 1.128 for polyester fiber-reinforced asphalt concrete.

Evaluation of fracture resistance of asphalt concrete involving Calcium Lignosulfonate and Polyester Fiber under freeze–thaw damage

2021 ◽  
pp. 103168
Author(s):  
Mohammad Zarei ◽  
Ali Abdi Kordani ◽  
Zahra ghamarimajd ◽  
Mohammad khajehzadeh ◽  
Maziar Khanjari ◽  
...  
Keyword(s):  
Asphalt Concrete ◽  
Fracture Resistance ◽  
Polyester Fiber ◽  
Freeze Thaw

scholarly journals Fatigue Performance Test and Life Calculation of Fiber-Reinforced Asphalt Concrete

2020 ◽  
Vol 44 (2) ◽  
pp. 133-139
Author(s):  
Fenglin Meng ◽  
Danying Gao ◽  
Faqi Chen ◽  
Chunshui Huang
Keyword(s):  
Asphalt Concrete ◽  
Performance Test ◽  
Fatigue Performance ◽  
Fiber Reinforced

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.

Investigation of the Performance of Basalt Fiber Reinforced Asphalt Mixture

2020 ◽  
Vol 10 (5) ◽  
pp. 1561 ◽  
Author(s):  
Hua Zhao ◽  
Bowen Guan ◽  
Rui Xiong ◽  
Aiping Zhang
Keyword(s):  
Asphalt Mixture ◽  
Basalt Fiber ◽  
Polyester Fiber ◽  
Fiber Reinforced ◽  
The Road ◽  
Water Sensitivity ◽  
Temperature Performance ◽  
Splitting Test ◽  
Road Performance ◽  
Marshall Stability

This study is focused on the effect of basalt fiber on the road performance of the asphalt mixture. The road performance of asphalt mixture with different dosages of basalt fiber was comprehensively evaluated using Marshall Stability test, the wheel tracking test, the three-point bending beam test and the freezing-thaw splitting test. The road performance of lignin fiber reinforced asphalt mixture and polyester fiber reinforced asphalt mixture also were tested to compare with the road performance of basalt fiber reinforced asphalt mixture. The results showed that basalt fiber can enhance mechanical properties, the low-and high-temperature performance and water sensitivity of the asphalt mixture significantly. Considering the road performance and economic benefits, the appropriate dosage of basalt fiber is about 0.3%. Marshall Stability (MS), dynamic stability (DS), the maximum bending strain and the tensile strength ratio (TSR) of asphalt mixture with 0.3% basalt fiber were increased by 19.6%, 25.5%, 22.2% and 6.0%, respectively. Basalt fiber has certain advantages in improving the low-temperature performance of asphalt mixture by comparison with lignin fiber and polyester fiber.

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