Evaluation of Petroleum-Contaminated Soil effect on the properties of hot-mix asphalt concrete using dynamic modulus |E*| and indirect tensile tests

2009 ◽  
Author(s):  
Hossam Hassan
Keyword(s):  
Contaminated Soil ◽  
Asphalt Concrete ◽  
Dynamic Modulus ◽  
Hot Mix Asphalt ◽  
Tensile Tests ◽  
Petroleum Contaminated Soil ◽  
Indirect Tensile

Potential Use of Petroleum-Contaminated Soil in Hot Mix Asphalt Concrete

2006 ◽  
Author(s):  
H. Hassan ◽  
A. Al-Rawas ◽  
A. Al-Futaisi ◽  
A. Al-Jamrah ◽  
R. Taha ◽  
...  
Keyword(s):  
Contaminated Soil ◽  
Asphalt Concrete ◽  
Hot Mix Asphalt ◽  
Petroleum Contaminated Soil ◽  
Potential Use

scholarly journals Effect of using Fibre on the Durability of Asphalt Pavement

2016 ◽  
Vol 2 (2) ◽  
pp. 63-72 ◽  
Author(s):  
Ali Akbari Motlagh ◽  
Ebrahim Mirzaei
Keyword(s):  
Rheological Properties ◽  
Asphalt Concrete ◽  
Asphalt Pavement ◽  
Tensile Tests ◽  
Concrete Mixture ◽  
Moisture Susceptibility ◽  
Air Voids ◽  
Bitumen Content ◽  
Indirect Tensile ◽  
Stiffening Effect

Using the fibre additives with a uniform distribution in asphaltic concrete mixture is a well-known technique for improving the mechanical properties and durability of asphalt pavement. The purpose of this study is to investigate the effect of preparing fibre and production of the properties of bitumen and asphalt concrete mixture. In this study, a dense-graded aggregation, mineral fibres (asbestos) and synthetic fibres (polyester and nylon) were used.  Laboratory studies were done by comparing different rheological properties, mechanical and moisture susceptibility of mixtures of fibres. Results of the penetration and softening point on mixtures of bitumen – fibre show that fibres improve the mixed rheological properties and stiffening effect of fibre properties. The results of Marshall Tests indicate that adding fibres reduces the strength in Marshall and results in the slight increase in the percentage of optimum bitumen content and asphalt percentage of air voids in comparison with typical fibre. The results of the indirect tensile tests showed that the addition of fibres, depending on the percentage of fibres significantly improves the durability of the mixture.

scholarly journals Mechanical properties of fiber-reinforced asphalt concrete: Finite element simulation and experimental study

e-Polymers ◽  
2021 ◽  
Vol 21 (1) ◽  
pp. 533-548
Author(s):  
Huan Gao ◽  
Lizhe Zhang ◽  
Dongbo Zhang ◽  
Tao Ji ◽  
Jun Song
Keyword(s):  
Mechanical Properties ◽  
Finite Element ◽  
Asphalt Concrete ◽  
Volume Ratio ◽  
Temperature Stability ◽  
Tensile Tests ◽  
Fiber Reinforced ◽  
High Temperature Stability ◽  
Indirect Tensile ◽  
Road Performance

Abstract Polymer fiber reinforcement can elevate the pavement performance indicators of asphalt concrete, including low temperature crack resistance, high temperature stability, and water stability. Fiber-reinforced asphalt concrete (FRAC) is a suitable solution to improve the road performance of asphalt concrete. However, the mechanism of the fiber parameters in asphalt concrete has still not been introduced. Herein we studied the influence of fiber geometry characteristics on improving the mechanical properties of asphalt concrete through numerical simulation. The finite element method (FEM) was used to establish an elastoplastic mesoscopic model for indirect tensile test of the asphalt mixtures via ABAQUS. The best fiber length, volume ratio, diameter, and modulus were confirmed based on the simulated results. Furthermore, the indirect tensile tests were undertaken to prove the influence of polyacrylonitrile (PAN) and polyvinyl alcohol (PVA) fiber parameters on the FRAC’s splitting stability. This study fills the gap between theoretical simulations and laboratory experiments, and it is a promising solution to improve engineered FRAC road performance.

Correlating the Dynamic Modulus and the Indirect Tensile Strength of Asphalt Concrete

2013 ◽  
Vol 723 ◽  
pp. 268-275
Author(s):  
Islam Md Rashadul ◽  
Mekdim T. Weldegiorgis ◽  
A. Tarefder Rafiqul
Keyword(s):  
Tensile Strength ◽  
Asphalt Concrete ◽  
Dynamic Modulus ◽  
Indirect Tensile Strength ◽  
Reclaimed Asphalt Pavement ◽  
Standard Laboratory ◽  
Test Protocol ◽  
Reclaimed Asphalt ◽  
Indirect Tensile ◽  
Cylindrical Samples

This study has developed a relationship between the Dynamic Modulus (E*) and the Indirect Tensile Strength (ITS) of Hot-Mix Asphalt (HMA) using standard laboratory tests programs. Two types of SuperPave (SP) mixtures were considered namely, SP-III with 15% Reclaimed Asphalt Pavement (RAP) materials and SP-III with 35% RAP materials. Cylindrical samples of 100 mm diameter and 150 mm height were prepared. The samples were then tested for |E*| value at 210C at several loading frequencies following the AASHTO TP 62-07 test protocol. Next, the samples were cut into circular pieces of 38 to 50 mm thickness using laboratory saw. The samples are then tested for ITS value by applying a deformation rate of 50 mm per minute (AASHTO T 283 protocol). The ITS was calculated following the AASHTO T 283-07 test standard. The |E*| values (MPa) of SP-III with 15% RAP at 25, 10, 5.0, 1.0, 0.5, 0.1 Hz are measured to be 65, 59, 52, 34, 31, and 18 times of ITS (psi) respectively. The |E*| values (MPa) of SP-III with 35% RAP at 25, 10, 5.0, 1.0, 0.5, 0.1 Hz are measured to be 41, 38, 33, 24, 20, and 14 times of the ITS (psi) respectively. This study also draws a conclusion that increase in RAP has resulted in increased stiffness and strength.

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