Fracture Morphology and Fracture Toughness Measurement of Polymer-Modified Asphalt Concrete

Bhurke, Alekh; Shin, E. Eugene; Drzal, Lawrence T.

doi:10.3141/1590-04

Cited by 41 publications

(15 citation statements)

References 2 publications

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“…The literature on asphalt modification with RET polymers is quite scarce [26][27][28], especially with respect to rheological properties. Some preliminary data were reported in [29].…”

Section: Introductionmentioning

confidence: 99%

Rheology of asphalts modified with glycidylmethacrylate functionalized polymers

Polacco

Stastna

Biondi

et al. 2004

Journal of Colloid and Interface Science

165

108

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“…The literature on asphalt modification with RET polymers is quite scarce [26][27][28], especially with respect to rheological properties. Some preliminary data were reported in [29].…”

Section: Introductionmentioning

confidence: 99%

Rheology of asphalts modified with glycidylmethacrylate functionalized polymers

Polacco

Stastna

Biondi

et al. 2004

Journal of Colloid and Interface Science

165

108

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“…[22] Ref. [23] Copyright ß 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim www.ms-journal.de 5-The modified asphalt by fine scrap rubber powder greatly improve the performance of road pavement, especially the chemically modified rubber powder asphalt.…”

Section: Resultsmentioning

confidence: 99%

New Trends for Utilization of Rubber Wastes

Yehia¹,

Abdel‐Bary²,

Mull³

et al. 2012

Macromolecular Symposia

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The scrape rubber is difficult to recycle, since it is not thermoplastic material. Consequently, it must be converted into a powder. The scrape rubber powder can be reused via different ways: a-Reclamation The reclamation process was studied. This process converts the rubber powder into elastic-plastic materials. The obtained reclaims were introduced into NR formulations. The obtained data reveal that, 10-30% reclaimed rubber can replace virgin NR without scarifying the basic properties of the rubber vulcanizates. In such way we can gain cost reduction. b-Reuse as filler-extender The rubber powder was treated with some oxidizing agents and namely HNO 3 and H 2 O 2 to modify its surface. The result of such treatment creates some functional groups such as carbonyl groups. The treated rubber powder was used as filler-extender in NR formulations. The treated rubber powder improves the tensile strength of the vulcanizates to some extent (62%). On the other hand, the treated powder was used in combinations with the classical reinforcing carbon black (HAF). The obtained results showed that, 20-40% of HAF can be replaced by the treated powder in NR mixes. The obtained vulcanizates have good physico-mechanical properties. In such way the production cost can be reduced. c-Utilization of sulfonated rubber powder as ion exchanger The rubber powder was sulfonated with Sulfuric and chlorosulfonic acids. The sulfonated product was evaluated as ion exchange resin to clear the industrial wastewater from heavy metals. The data showed that the Sodium salt form is more efficient ion exchanger than the acid form. d-Utilization in pavement The rubber powder is mixed with asphalt used in road pavement. The performance of asphalt concrete greatly depends on the particle size of the rubber powder used. The fine powder greatly improves the mechanical performance of the road pavement. The rubber powder was chemically modified. It was found that such modification had greatly improved the performance road pavement.

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“…In recent years a significant number of publications have discussed the fundamental mechanisms by which polymer modifiers can toughen brittle asphalt binders (Lee et al, 1995;Bhurke et al, 1997;Sabbagh and Lesser, 1998;Champion et al, 1999;Anderson et al, 2000;ChampionLapalu et al, 2000). High molecular weight polymer molecules can strengthen a brittle matrix and thereby allow for a larger amount of plastic flow before catastrophic failure ensues.…”

Section: Introductionmentioning

confidence: 98%

Low-temperature Fracture in Reactive-ethylene-terpolymer-modified Asphalt Binders

Hesp

Hoare

Roy

2002

International Journal of Pavement Engineering

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This paper reports on the low-temperature fracture and yield properties of a number of Strategic Highway Research Program asphalt binders that were modified with 5% by weight of a reactive terpolymer of ethylene, butyl acrylate and glycidyl methacrylate. Selected binders were also tested with the addition of small amounts of phosphoric acid. Fracture toughness and energy were determined at temperatures close to where the stiffness reached 300 MPa while the 2% offset yield stress was determined at somewhat lower strain rates in compression. Significant differences were found in the fracture properties (K Ic and G Ic ) of these binders depending on the compatibility of the polymer with the base asphalt. It is suggested that the fracture energy and yield stress at low temperatures may be able to more accurately grade binders for their performance with respect to thermal stress cracking in the pavement compared to the currently used SHRP specification properties.

show abstract

Fracture Morphology and Fracture Toughness Measurement of Polymer-Modified Asphalt Concrete

Cited by 41 publications

References 2 publications

Rheology of asphalts modified with glycidylmethacrylate functionalized polymers

Rheology of asphalts modified with glycidylmethacrylate functionalized polymers

New Trends for Utilization of Rubber Wastes

Low-temperature Fracture in Reactive-ethylene-terpolymer-modified Asphalt Binders

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