fiber dosage effects in asphalt binders and hot mix

Fiber Dosage Effects in Asphalt Binders And Hot Mix ...

Fiber Dosage Effects in Asphalt Binders . And Hot Mix Asphalt Mixtures . by . Ashraf Alrajhi . A Thesis Presented in Partial Fulfillment . of the Requirements for the Degree . Master of Science . Approved November 2011 by the Graduate Supervisory Committee: Kamil Kaloush, Chair Matthew Witczak Michael Mamlouk . ARIZONA STATE UNIVERSITY . May 2012

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Fiber Dosage Effects in Asphalt Binders and Hot Mix ...

Fiber Dosage Effects in Asphalt Binders and Hot Mix Asphalt Mixtures. Abstract. The application of fibers and other materials in asphalt mixes has been studied and applied over the past five decades in order to improve pavement performance around the world. This thesis highlights the characteristics and performance properties of modified ...

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[PDF] Fiber Dosage Effects in Asphalt Binders and Hot Mix ...

The asphalt mixture tests included the dynamic modulus, and indirect tensile strength. The binder test results indicated that the best viscosity - temperature susceptibility performance would be from the blend of three dosages of polypropylene and one dosage of aramid, the dynamic modulus test results also confirmed this finding.

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Fiber Dosage Effects in Asphalt Binders and Hot Mix ...

Jan 04, 2021  The laboratory study was conducted on sixteen different dosages and blends of the fibers, with various combinations of polypropylene and aramid, using binder tests as well as hot mix asphalt tests. The binder tests included: penetration, softing point, and Brookfield viscosity tests.

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Fiber Dosage Effects in Asphalt Binders and Hot Mix ...

Corpus ID: 135555397. Fiber Dosage Effects in Asphalt Binders and Hot Mix Asphalt Mixtures @inproceedings{Alrajhi2012FiberDE, title={Fiber Dosage Effects in Asphalt Binders and Hot Mix Asphalt Mixtures}, author={A. Alrajhi}, year={2012} }

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Novel Applications of Carbon Fiber for Hot Mix Asphalt ...

asphalt, they can reduce the electrical resistivity, which may have applications in asphalt stress testing, structural vibration sensing, and heating roads to melt ice and snow. Precautions are needed during the addition of carbon fiber to hot mix asphalt. Airborne carbon fibers create the potential danger of short-circuiting electrical ...

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Fiber Dosage Effects in Asphalt Binders and Hot Mix ...

Fiber Dosage Effects in Asphalt Binders and Hot Mix Asphalt Mixtures . By . Get PDF (3 MB) Abstract. abstract: The application of fibers and other materials in asphalt mixes has been studied and applied over the past five decades in order to improve pavement performance around the world. ... The main objective of this study was to evaluate the ...

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Fiber reinforcing effect on asphalt binder under low ...

Jun 30, 2014  The fiber dosage corresponding to both peaks is about 4%. When fiber dosage is less than 1%, the amount of fiber is below critical fiber dosage and not adequate to strengthen the asphalt binder, therefore its reinforcing effect on tensile properties, especially on tensile ductility, is very minimal.

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The purpose of this study is to evaluate the impact of fiber types, binder content, and dosage rates on the volumetric properties and laboratory performance of asphalt ... —to isolate the effects of fiber types and dosage rates from the effect of binder content. Results showed that 0.16% and 0.15% ... Results of The Mix Design For Fiber ...

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Assessment of the Impact of Fiber Types on the Performance ...

This study aims to evaluate the impact of fiber types on the performance of hot mix asphalt (HMA) mixtures. ... blend) were used to produce four fiber-reinforced HMA mixes, and a control mix without fibers was also prepared. The fiber dosage rates used in this study were 0.16% (fiberglass, basalt, and carbon) and 0.05% (polyolefin/aramid) by ...

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Effects of fibers on the dynamic properties of asphalt ...

The dynamic characteristics of fiber-modified asphalt mixture were investigated. Cellulose fiber, polyester fiber and mineral fiber were used as additives for asphalt mixture, and the dosage was 0.3%, 0.3%, 0.4%, respectively. Dynamic modulus test using SuperPave simple performance tester (SPT) was conducted to study the dynamic modulus (E*) and phase angle (δ) for the control asphalt mixture ...

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Fiber Reinforced Asphalt Pavements

Rheological properties of fiber reinforced asphalt binders –Ye and Wu, Indian Journal of Engineering Materials Sciences, 2008 Scanning Electron Microscope (SEM): rCellulose: flocculent material with porous and ribbon type surface (strong absorption of binder) rPolyester and mineral fibers: round and smooth surface, much lower absorption.

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Improvement of asphalt mixture performance with glass ...

Mar 10, 2018  In all cases, the fibers were mixed with the hot aggregates for a minimum of 30 s to enhance fiber dispersion and then the asphalt binder was added while continuing to mix for nearly 2 additional minutes. For instance, Fig. 2 shows the distribution of the macrofibers (MG) during the mixing process. Download : Download high-res image (188KB)

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Fiber reinforced asphalt. - SlideShare

Apr 04, 2017  Conventional Asphalt and aggregate mixing methods: Hot mix Asphalt concrete (HMA): This is produced by heating the asphalt binder to decrease its viscosity and drying the aggregate to remove moisture from it prior to mixing. Mixing is generally done at 300 F for virgin Asphalt at 330 F. ... Effects of Fiber in Asphalt: Fibers control the ...

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Effect of Polyester Fiber on Air Voids and Low-Temperature ...

Jan 03, 2020  2.1.3. Polyester Fiber. In asphalt mixture, the polyester fiber forms a three-dimensional network structure which mainly plays a reinforcing role in increasing the asphalt film thickness of the aggregate surface and enhances the adhesion between the aggregate and the asphalt [4, 28].The interlocking effect between the polyester fiber and the encapsulated particle improves the strength

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PAVING GRADE ASPHALT, PG64-22

The WSDOT specifications state PG64-22 asphalt at hot mix plants may be heated to a maximum temperature of 177°C (350°F). However, the preferred storage temperatures for PG64-22 is 140°C to 168°C (285°F to 335°F). Unnecessarily high temperatures result in increased hardening and heating costs. These temperatures should be verified with ...

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Performance of GLASS WOOL FIBERS in ASPHALT CONCRETE

Sep 24, 2020  Marshall mix design test were used to determine the optimum asphalt content for each dosage of fiber and during mixing, a dry mixing method were employed, where dry aggregates were first mixed with fibers and then asphalt binder was added to fiber and aggregates mixture. 2.3. Experimental methods 2.3.1. Marshall mix design method

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Investigating the Effects of Chopped Basalt Fiber on the ...

Jul 02, 2019  Porous asphalt mixture is a type of asphalt mixture with good drainage. However, it has poor tensile strength performance and durability. Chopped basalt fibers (CBF) have been proved to be an effective additive to improve the mechanical and fatigue performance of asphalt mixtures, but little attention has been paid on porous asphalt mixture.

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CHAPTER FOUR Asphalt Additives and Modifiers ...

When asphalt mixtures are being designed with high RAP and RAS contents, resulting in stiffer binder blends because of the available recycled asphalt binders, REOB may also be used as an RA in order to improve the cracking resistance properties of the asphalt mix- ture given the stiffer composite binder blend (DeDene and You 2014).

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Study of Road Property of Basalt Fiber Asphalt Concrete ...

[2] S. Wu et al, Effects of fiber additive on the high temperature property of asphalt binder, J Wuhan Univ. Technol., 21 (2006) 28–31. [3] Q. Ye, S. Wu, N. Li, Investigation of the dynamic and fatigue properties of fiber-modified asphalt mixtures, International Journal of Fatigue, 31 (2009) 1598–1602.

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Fiber Dosage Effects in Asphalt Binders and Hot Mix ...

Fiber Dosage Effects in Asphalt Binders and Hot Mix Asphalt Mixtures . By . Get PDF (3 MB) Abstract. abstract: The application of fibers and other materials in asphalt mixes has been studied and applied over the past five decades in order to improve pavement performance around the world. ... The main objective of this study was to evaluate the ...

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Influence of Natural Fibers on the Performance of Hot Mix ...

Dec 07, 2020  Ashraf, A., 2012. Fiber Dosage Effects in Asphalt Binders and Hot Mix Asphalt Mixtures. In: A Thesis Presented in Partial Fulfillment of the Requirements for the Degree Master of Science. Arizona State University, Tempe, Arizona. Bindu, C.S. and Beena, K.S., 2015. Influence of natural fibres on the compressive strength of stone matrix asphalt ...

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Assessment of the Impact of Fiber Types on the Performance ...

This study aims to evaluate the impact of fiber types on the performance of hot mix asphalt (HMA) mixtures. ... blend) were used to produce four fiber-reinforced HMA mixes, and a control mix without fibers was also prepared. The fiber dosage rates used in this study were 0.16% (fiberglass, basalt, and carbon) and 0.05% (polyolefin/aramid) by ...

get price

Effects of fibers on the dynamic properties of asphalt ...

The dynamic characteristics of fiber-modified asphalt mixture were investigated. Cellulose fiber, polyester fiber and mineral fiber were used as additives for asphalt mixture, and the dosage was 0.3%, 0.3%, 0.4%, respectively. Dynamic modulus test using SuperPave simple performance tester (SPT) was conducted to study the dynamic modulus (E*) and phase angle (δ) for the control asphalt mixture ...

get price

Fiber Reinforced Asphalt Pavements

Rheological properties of fiber reinforced asphalt binders –Ye and Wu, Indian Journal of Engineering Materials Sciences, 2008 Scanning Electron Microscope (SEM): rCellulose: flocculent material with porous and ribbon type surface (strong absorption of binder) rPolyester and mineral fibers: round and smooth surface, much lower absorption.

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Performance of GLASS WOOL FIBERS in ASPHALT CONCRETE

Sep 24, 2020  Marshall mix design test were used to determine the optimum asphalt content for each dosage of fiber and during mixing, a dry mixing method were employed, where dry aggregates were first mixed with fibers and then asphalt binder was added to fiber and aggregates mixture. 2.3. Experimental methods 2.3.1. Marshall mix design method

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CHAPTER FOUR Case Examples Fiber Additives in Asphalt ...

The milled material was reused in the new mixtures (Mike Santi, ITD communication, Aug. 29, 2013; University of Idaho 2015). The mix design was performed without fibers, which were later added at the drum mix plant. The mix incorporated a high reclaimed asphalt pavement content of 47% by mass of mix with a binder replacement value of about 54%.

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Investigating the Effects of Chopped Basalt Fiber on the ...

Jul 02, 2019  Porous asphalt mixture is a type of asphalt mixture with good drainage. However, it has poor tensile strength performance and durability. Chopped basalt fibers (CBF) have been proved to be an effective additive to improve the mechanical and fatigue performance of asphalt mixtures, but little attention has been paid on porous asphalt mixture.

get price

Effect of Polyester Fiber on Air Voids and Low-Temperature ...

Jan 03, 2020  2.1.3. Polyester Fiber. In asphalt mixture, the polyester fiber forms a three-dimensional network structure which mainly plays a reinforcing role in increasing the asphalt film thickness of the aggregate surface and enhances the adhesion between the aggregate and the asphalt [4, 28].The interlocking effect between the polyester fiber and the encapsulated particle improves the strength

get price

PAVING GRADE ASPHALT, PG64-22

The WSDOT specifications state PG64-22 asphalt at hot mix plants may be heated to a maximum temperature of 177°C (350°F). However, the preferred storage temperatures for PG64-22 is 140°C to 168°C (285°F to 335°F). Unnecessarily high temperatures result in increased hardening and heating costs. These temperatures should be verified with ...

get price

Study of Road Property of Basalt Fiber Asphalt Concrete ...

[2] S. Wu et al, Effects of fiber additive on the high temperature property of asphalt binder, J Wuhan Univ. Technol., 21 (2006) 28–31. [3] Q. Ye, S. Wu, N. Li, Investigation of the dynamic and fatigue properties of fiber-modified asphalt mixtures, International Journal of Fatigue, 31 (2009) 1598–1602.

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An Evaluation of the Effectiveness of Geo-Textile-Binder ...

Effects of Aggregate Gradation and Asphalt Binder on the Visco-Elastic Behavior of Asphalt Matrix Pavements and Materials: Modeling, Testing, and Performance June 2012 Laboratory Evaluation of Waste Cooking Oil-Based Bioasphalt as an Alternative Binder for Hot Mix Asphalt

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Incorporation of Additives and Fibers in Porous Asphalt ...

Warm-mix asphalt (WMA) technology is a sustainable measure to reduce the temperature (up to 40 °C lower) for mixing and compacting asphalt pavements in comparison to the conventional hot-mix asphalt. WMA technology reduces the energy consumption and CO 2 emissions. Moreover, using WMA technology with porous asphalt pavements can have ...

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Laboratory Evaluation of SMA Mixtures Containing Different ...

In order to mix the binder with polymer, 5% of SBS by weight of asphalt cement was added to the heated binder (170°C) according to the previous studies (Yildirim, 2007). At this temperature, the rotation speed was regulated at 1500 rpm. After about 30 min the speed increased up to 4000 rpm for 1 h to make a homogeneous binder.

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