High and low temperature properties of crumb rubber modified binders containing warm mix asphalt additives

Rodríguez-Alloza, Ana María; Gallego, Juan; Pérez, Ignacio Pérez; Bonati, Beatrice; Giuliani, Felice

doi:10.1016/j.conbuildmat.2013.12.026

Cited by 80 publications

(35 citation statements)

References 23 publications

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“…The mechanical properties (benefits and drawbacks) of WMA mixes can vary in a large range mainly depending on the amount of additive and the type of WMA technology used. Wide scientific literature exists addressing the assessment of mechanical properties and durability of warm-modified binders and mixtures [2][3][4][5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Rheological Characterization of Warm-Modified Asphalt Mastics Containing Electric Arc Furnace Steel Slags

Pasetto

Baliello

Giacomello

et al. 2016

Advances in Materials Science and Engineering

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The environmental sustainability of road materials and technologies plays a key role in pavement engineering. In this sense, the use of Warm Mix Asphalt (WMA), that is, a modified asphalt concrete that can be produced and applied at lower temperature, is considered an effective solution leading to environmental and operational benefits. The environmental sustainability of WMA can be further enhanced with the inclusion of steel slag in partial substitution of natural aggregates. Nevertheless, such innovative material applied at lower temperatures containing warm additives and steel slag should be able to guarantee at least the same performance of traditional hot mix asphalts, thus assuring acceptable mechanical properties and durability. Therefore, the purpose of this study is to investigate the rheological behaviour of bituminous mastics obtained combining a warm-modified binder and a filler (material passing to 0.063 mm) coming from electric arc furnace steel slag. To evaluate the influence of both warm additive and steel slag, a plain binder and limestone filler were also used for comparison purposes. Complex modulus and permanent deformation resistance of bitumens and mastics were assessed using a dynamic shear rheometer. Experimental results showed that steel slag warm mastics assure enhanced performance demonstrating promising applicability.

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Section: Introductionmentioning

confidence: 99%

Rheological Characterization of Warm-Modified Asphalt Mastics Containing Electric Arc Furnace Steel Slags

Pasetto

Baliello

Giacomello

et al. 2016

Advances in Materials Science and Engineering

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“…O ligante modificado com borracha permite aumentar a resistencia à deformação permanente e ao trincamento por fadiga, podendo ainda prolongar a vida do pavimento (RODRIJ GUEZ-ALLOZA et al, 2014). No entanto, a incorporação da borracha aumenta a viscosidade do ligante (BAHIA; DAVIS, 1994;BERNUCCI et al, 2010;RODRIJ GUEZ-ALLOZA et al, 2014) aleḿ de demandar maior temperatura de usinagem e compactaçaõ (RODRIJ GUEZ-ALLOZA et al, 2014).…”

Section: Introductionunclassified

“…No entanto, a incorporação da borracha aumenta a viscosidade do ligante (BAHIA; DAVIS, 1994;BERNUCCI et al, 2010;RODRIJ GUEZ-ALLOZA et al, 2014) aleḿ de demandar maior temperatura de usinagem e compactaçaõ (RODRIJ GUEZ-ALLOZA et al, 2014).…”

Section: Introductionunclassified

Estudo do comportamento do revestimento de pavimento utilizando mistura asfáltica morna com adição de borracha moída de pneu na SPA-248/055

Merighi

Suzuki

2017

TRANSPORTES

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Este artigo apresenta um estudo realizado com mistura asfáltica morna utilizando ligante aditivado com agente surfactante e borracha moída de pneus. Foram feitos ensaios para verificar o comportamento mecânico de mistura de concreto asfáltico com asfalto-borracha morno e foi comparado com uma mistura de referência, de concreto asfáltico com asfalto-borracha usinado a quente. A primeira apresentou resultado satisfatório, dentro dos limites de norma. Adicionalmente, realizou-se a análise das emissões de poluentes, no momento da produção das duas misturas. Os resultados indicaram que houve redução de poluentes como fumos totais, fumos solúveis e compostos orgânicos voláteis (VOCs). Por fim, foi avaliado o trecho experimental, executado na SPA-248/055, Pista Oeste e comparado ao trecho de referência, localizado na mesma rodovia. Os resultados obtidos mostram o desempenho positivo da mistura asfáltica morna, quando comparado ao pavimento do trecho de referência, ao longo de quatro anos de observação.

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“…E.g. 2-4% Fischer-Tropsch wax addition could result 10-30°C lower mixing temperature in similar asphalt rubber binder [10].…”

Section: Introductionmentioning

confidence: 99%

Rheological Investigation of Rubber Bitumen Containing Various Waxes as Warm Mix Additive

Gergó¹,

Holló²,

Geiger³

2017

Studia UBB Chemia

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ABSTRACT. The aim of this study is to investigate the effect of various wax type warm mix additives on the rheological properties of Chemically Stabilized Rubber Bitumen (CSRB). The rubber bitumen samples were prepared by the modified wet process (HU 226481) and the bitumen tests were carried out according to the relevant standards. Two types of warm mix additives (polypropylene wax -produced by thermal cracking of polypropylene and Fischer-Tropsch wax) with different concentrations (1.0%, 3.0%, 5.0%, 7.0% by weight) were used in our research. The influence of these warm mix additives on the rheological properties was evaluated by Dynamic Shear Rheometer (DSR) test. Multiple-stress creep and recovery (MSCR) test was also used for the determination of percent recovery and non-recoverable creep compliance of wax-modified and neat asphalt rubber samples. According to the results of DSR tests the addition of the Fischer-Tropsch wax resulted a higher complex modulus (thereby stiffness) and favourable higher recovery values based on MSCR tests unlike the addition of polypropylene wax.

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High and low temperature properties of crumb rubber modified binders containing warm mix asphalt additives

Cited by 80 publications

References 23 publications

Rheological Characterization of Warm-Modified Asphalt Mastics Containing Electric Arc Furnace Steel Slags

Rheological Characterization of Warm-Modified Asphalt Mastics Containing Electric Arc Furnace Steel Slags

Estudo do comportamento do revestimento de pavimento utilizando mistura asfáltica morna com adição de borracha moída de pneu na SPA-248/055

Rheological Investigation of Rubber Bitumen Containing Various Waxes as Warm Mix Additive

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