production of high modulus asphalt concrete

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PRODUCTION OF HIGH MODULUS ASPHALT CONCRETE WITH

PRODUCTION OF HIGH MODULUS ASPHALT CONCRETE WITH HIGH RUTTING RESISTANCE Huda A. Kadhim 1, Basim H. Al-Humeidawi 2 and Mutaz Kadhim Medhlom 3 1Department of Highway and Transport, College of Engineering, Mustansiriya h University, Baghdad, Iraq 2Department of Roads and Transport, College of Engineering, University of A l-Qadisiyah, Al-Diwaniyah province, Iraq

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(PDF) Production of high modulus asphalt concrete with ...

Production of high modulus asphalt concrete (HMAC) with high rutting resistance.pdf. Content uploaded by Basim Hassan Al-Humeidawi. Author content. All

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(PDF) PRODUCTION OF HIGH MODULUS ASPHALT CONCRETE

PRODUCTION OF HIGH MODULUS ASPHALT CONCRETE WITH HIGH RUTTING RESISTANCE. Download. Related Papers. Production of Hard Grade Bitumen for Using in High Modulus Asphalt Concrete. By Huda A. Kadhim. SUPERPLAST - ACCREDITATION OF NEW MATERIALS AND TECHNIQUES - REV3 final. By Debatosh Roy. Performance Evaluation of Conventional and High Modulus Asphalt Concrete

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[PDF] PRODUCTION OF HIGH MODULUS ASPHALT CONCRETE

The High Modulus Asphalt Concrete (HMAC) designed according to French method (Enrobés À Module Élevé EME) can be considered as one of the important solutions for these distresses. The current research involved using the obtained hard grade bitumen from previous research by authors with good quality and specific gradation of aggregate to produce HMAC according to EME2 mix design method.

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Top PDF Production of high modulus asphalt concrete (HMAC ...

The High Modulus Asphalt Concrete (HMAC) designed according to French method (Enrobés À Module Élevé - EME) can be considered as one of the important solutions for these distresses. The current research involved using the obtained hard grade bitumen from previous research by authors with good quality and specific gradation of aggregate to produce HMAC according to EME2 mix design

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High modulus asphalt concrete: A state-of-the-art review ...

20/03/2020  High modulus asphalt concrete (HMAC) was originally developed in France on the base course to resist the plastic deformation with the increasing heavy traffic. Although these mixtures were designed to serve as either base courses or binder courses, they were later extended to the wearing courses. This article first reviews the components of the high modulus mixture, its detailed design

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DEVELOPMENT OF HIGH MODULUS ASPHALT CONCRETE

One of these technologies is Enrobé à Module Élevé- (EME) or ³High-Modulus Asphalt Mix´. EME is a type of asphalt concrete that represents high modulus/stiffness, high durability, superior rutting performance and good fatigue resistance. This type of mix was developed in France in the 1980’s.

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Production of Hard Grade Bitumen for Using in High Modulus ...

Production of Hard Grade Bitumen for Using in High Modulus Asphalt Concrete Basim H. Al-Humeidawi Roads and Transport Department, College of Engineering, University of

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NCAT Report 17-04 HIGH-MODULUS ASPHALT CONCRETE (HMAC ...

High-modulus asphalt concrete (HMAC) was originally developed in the 1980s at a time when France was looking to design high performance asphalt mixtures to increase the life span of conventional asphalt pavements or reduce the necessary thickness required to carry the increasing loads seen on European highways. Although these mixtures were designed to serve as either asphalt base or binder ...

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Micro-mechanical analysis of high modulus asphalt concrete ...

30/09/2019  1. Introduction. High-modulus asphalt concrete (HMAC) was originated from France in 1980s to increase the rutting mitigation resistance and the stiffness of asphalt base layers .Generally, there are three methods to obtained high modulus binders which contributes the most of the higher stiffness of HMAC: use hard-grade asphalt binders that have low penetration and high softening

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Production of Hard Grade Bitumen for Using in High Modulus ...

The High Modulus Asphalt Concrete(HMAC) designed according to the French method (EME) can be considered as one of the important solutions for these distresses. The production of HMAC requires hard grade bitumen. The current research involved a novel way to produce hard grade bitumen (asphalt binder) to be consonant with the requirements of hard grade bitumen used for a HMAC. The

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Effect in the high modulus asphalt concrete with the ...

30/11/2014  The use of the high modulus asphalt concrete in the base course of airport pavements is not of recent utilization, but at present there is a considerable gap in the regulation for the use of this bitumen. The main objective of this paper is to present the results of the research that has been done using the experimental dynamic modulus of different mixtures of conventional bitumen with ...

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Experimental study of recycled asphalt concrete modified ...

15/12/2016  A commercial high modulus agent as presented in Fig. 2 was used to produce high modulus asphalt concretes. The high modulus agents are synthetic low-molecular weight polyolefin polymers with basic properties presented in Table 4.It can be seen that the high modulus agents are in powder form and its melting point is within the normal production temperature range of asphalt concrete

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Design and performance of a warm high-modulus asphalt ...

This is particularly important in the case of high-modulus asphalt concrete (HMAC), because these mixtures are produced from hard bitumens that need high temperatures to achieve the required viscosity and ensure the proper coating of the aggregates, the workability and compactability of the mixture. Higher heating temperatures results in higher energy consumption and increased environmental ...

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Experimental study on rheological characteristics and ...

30/11/2017  The fundamental material for production of high-modulus asphalt (HMAC) is high modulus asphalt binder (HMAB), which is normally manufactured from hard-grade asphalt, rock asphalt modification, and polyolefin modification. This paper investigated rheological properties and performance of HMAB as compared to Styrene-Butadiene-Styrene (SBS) modified binder and neat

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Mechanism and Rheological Properties of High-Modulus Asphalt

22/04/2020  High-modulus asphalt concrete (HMAC) is considered as an effective paving material for addressing the increasing heavy traffic and rutting problems. Therefore, one high-modulus agent was used in this study to prepare high-modulus asphalt binder with different dosages. The objective of this study is to investigate the performance and modification mechanism of high-modulus asphalt.

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Numerical prediction of elastic modulus of asphalt ...

01/10/2012  The constitutions of asphalt concrete (AC) are pretty complicated, such as the graded and irregular rigid aggregates, a viscoelastic asphalt mastic which is composed of asphalt, fines, fine aggregates, and additives, a small portion of air voids, and a large amount of micro-cracks. Therefore, it is rather difficult to analysis its mechanical behavior exactly by the classical mechanical method ...

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Supplement to Part 2 Pavement Structural Design of the ...

• include a flexural modulus master curve and fatigue relationship for high modulus asphalt (EME2) ... 3.15.2 Asphalt or Concrete Surfaces Accepted 3.15.3 Open-graded Asphalt Accepted, with amendments 3.15.4 Surfacings in Tunnels Accepted 3.16 Pavement Widenings Accepted 3.17 Settlement New 3.18 Pavement Jointing Considerations New 3.19 Thickness of Bituminous Seals

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E* - DYNAMIC MODULUS

Pavement Systems”, currently under development in NCHRP Project 1-37A, the modulus of the asphalt concrete -at all analysis levels of temperature and time rate of load- is determined from a master curve constructed at a reference temperature, generally 70F. Master curves are constructed using the principle of time-temperature superposition. The data at various temperatures should be shifted ...

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(PDF) Typical Values of Young's Elastic Modulus and ...

High fines contents and/or high moisture contents tend to reduce Young’s modulus and increase Poisson’s ratio. Unusually low fines contents and/or low moisture contents have the opposite effect. Poisson’s ratio for a completely saturated material will be close to 0.50. Well-cured, asphalt emulsion stabilized gravel, and reclaimed asphalt pavements, will have moduli slightly less than ...

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Effect in the high modulus asphalt concrete with the ...

30/11/2014  The use of the high modulus asphalt concrete in the base course of airport pavements is not of recent utilization, but at present there is a considerable gap in the regulation for the use of this bitumen. The main objective of this paper is to present the results of the research that has been done using the experimental dynamic modulus of different mixtures of conventional bitumen with ...

Get price

Experimental study of recycled asphalt concrete modified ...

15/12/2016  A commercial high modulus agent as presented in Fig. 2 was used to produce high modulus asphalt concretes. The high modulus agents are synthetic low-molecular weight polyolefin polymers with basic properties presented in Table 4.It can be seen that the high modulus agents are in powder form and its melting point is within the normal production temperature range of asphalt concrete

Get price

Top PDF Design of high modulus asphalt overlay for ...

Top PDF Design of high modulus asphalt overlay for concrete pavements Design of high modulus asphalt overlay for concrete pavements The initial modeling was designed to imitate multiple slab repairs along a section of road, to assess the effect the multiple joints had on the „repaired‟ concrete

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Design and performance of a warm high-modulus asphalt ...

This is particularly important in the case of high-modulus asphalt concrete (HMAC), because these mixtures are produced from hard bitumens that need high temperatures to achieve the required viscosity and ensure the proper coating of the aggregates, the workability and compactability of the mixture. Higher heating temperatures results in higher energy consumption and increased environmental ...

Get price

Experimental study on rheological characteristics and ...

30/11/2017  The fundamental material for production of high-modulus asphalt (HMAC) is high modulus asphalt binder (HMAB), which is normally manufactured from hard-grade asphalt, rock asphalt modification, and polyolefin modification. This paper investigated rheological properties and performance of HMAB as compared to Styrene-Butadiene-Styrene (SBS) modified binder and neat

Get price

Mechanism and Rheological Properties of High-Modulus Asphalt

22/04/2020  High-modulus asphalt concrete (HMAC) is considered as an effective paving material for addressing the increasing heavy traffic and rutting problems. Therefore, one high-modulus agent was used in this study to prepare high-modulus asphalt binder with different dosages. The objective of this study is to investigate the performance and modification mechanism of high-modulus asphalt.

Get price

Numerical prediction of elastic modulus of asphalt ...

01/10/2012  The constitutions of asphalt concrete (AC) are pretty complicated, such as the graded and irregular rigid aggregates, a viscoelastic asphalt mastic which is composed of asphalt, fines, fine aggregates, and additives, a small portion of air voids, and a large amount of micro-cracks. Therefore, it is rather difficult to analysis its mechanical behavior exactly by the classical mechanical method ...

Get price

HOT MIX ASPHALT PAVEMENT DESIGN GUIDE

bituminous concrete,hot plant mix,asphalt concrete, blacktop or Superpave. Hot mix asphalt is composed of aggregate bound together into a solid mass by asphalt cement. The aggregates total ninety-three (93) to ninety-seven (97) percent by weight of the total mixture and are mixed with three (3) to seven (7) percent asphalt cement. It is manufactured in a central mixing plant where the asphalt ...

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E* - DYNAMIC MODULUS

Pavement Systems”, currently under development in NCHRP Project 1-37A, the modulus of the asphalt concrete -at all analysis levels of temperature and time rate of load- is determined from a master curve constructed at a reference temperature, generally 70F. Master curves are constructed using the principle of time-temperature superposition. The data at various temperatures should be shifted ...

Get price

(PDF) Typical Values of Young's Elastic Modulus and ...

High fines contents and/or high moisture contents tend to reduce Young’s modulus and increase Poisson’s ratio. Unusually low fines contents and/or low moisture contents have the opposite effect. Poisson’s ratio for a completely saturated material will be close to 0.50. Well-cured, asphalt emulsion stabilized gravel, and reclaimed asphalt pavements, will have moduli slightly less than ...

Get price
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