Storage stability and compatibility of asphalt binder modified by SBS graft copolymer

Fu, Haiying; Xie, Leidong; Dou, Daying; Li, Linfan; Yu, Miao; Yao, Side

doi:10.1016/j.conbuildmat.2006.03.008

Cited by 183 publications

(65 citation statements)

References 11 publications

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“…The polymeric phase segregates in the storage tank and pumping is no longer possible to move the material. 8,9 This is a major obstacle to the application of SBS in the paving industry. In spite of the small proportions of the polymer added to the binder, its high cost also somewhat restricts its broad use in road construction.…”

Section: Introductionmentioning

confidence: 99%

Asphalt binders modified by SBS and SBS/nanoclays: effect on rheological properties

Pamplona¹,

Amoni²,

Alencar³

et al. 2012

J. Braz. Chem. Soc.

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Neste trabalho, investigou-se o efeito da vermiculita e montmorilonita organicamente modificadas (OVMT e OMMT, respectivamente) em ligante asfáltico (AB) modificado por SBS (butadieno-estireno-butadieno). As propriedades físicas e reológicas foram avaliadas para AB, 4,0% SBS MB e nanocompósitos AB modificados por 2,5% SBS com 2,5% de organoargilas. Os ligantes modificados (MB) resultaram no aumento do módulo complexo (G*) e na redução do ângulo de fase (δ), o que significa maior resistência destes à deformação permanente. A viscosidade, penetração e suscetibilidade térmica foram adequadas. Nos diagramas black, observou-se que o efeito da presença das nanoargilas OVMT e OMMT foi semelhante ao efeito da Cloisite ® . As propriedades reológicas dos nanocompósitos foram comparáveis às do 4,0% SBS MB, identificando uma redução de custos, dado o potencial de substituição de polímero pela argila. A presença da OVMT melhorou a estabilidade à estocagem do SBS MB, um resultado importante, visto que a separação de fases é um dos maiores obstáculos ao uso do SBS na pavimentação.In this work, it was investigated the effect of organically modified vermiculite and montmorillonite (OVMT and OMMT, respectively) in asphalt binders (AB) modified by SBS (styrene-butadiene-styrene). The physical and rheological properties were performed for AB, 4.0% SBS MB and nanocomposite AB modified by 2.5% SBS with 2.5% of organoclays. The modified binders (MB) result in the enhancement of complex modulus (G*) and reduction of phase angle (δ), which means greater resistance to permanent deformation. The viscosity, penetration and thermal susceptibility were appropriate. The black diagrams show that the effect of nanoclays OVMT and OMMT was similar to the effect of Cloisite ® . The rheological properties of the nanocomposite were comparable to the 4.0% SBS MB, identifying a cost reduction due to the potential of replacing polymer with clay. The presence of OVMT improved the storage stability of SBS MB, an important result, as the phase separation is a major obstacle to the use of SBS in paving. Keywords: asphalt binder, SBS, montmorillonite, vermiculite, rheology IntroductionPetroleum asphalt has been widely used as binder in road pavements to provide adhesive and protective coating to aggregates. The rheological behavior of a binder is complex, varying from viscous to elastic depending on loading rate and temperature. It has to be fluid enough at high temperature when pumped and mixed with aggregates and has to be stiff enough at service temperature so that, it can resist rutting. In addition, it can not be too stiff in order to avoid thermal cracking. Thus, rheological properties of asphalt binders are of major concern since they are directly related to the field performance.For many years, conventional pure asphalt performed satisfactorily. Due to the increase of traffic loads and also to environmental factors, pure asphalt does not always perform as it is expected. Polymer modified asphalts were developed to overcome distress problems. 1-3 The...

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Section: Introductionmentioning

confidence: 99%

Asphalt binders modified by SBS and SBS/nanoclays: effect on rheological properties

Pamplona¹,

Amoni²,

Alencar³

et al. 2012

J. Braz. Chem. Soc.

View full text Add to dashboard Cite

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“…In order to study effects of nanoparticle content on the storage stability of the modified asphalt binders, two types of modified asphalt binders with nanoparticle contents of 0.50%, 1.00%, 1.50%, 2.00%, and 2.50% were applied in this study for hot tube storage test according to the conventional procedure [21,22].…”

Section: Hot Tube Storage Testmentioning

confidence: 99%

Evaluation and Analysis of Variance of Storage Stability of Asphalt Binder Modified by Nanotitanium Dioxide

Zou

Sha

Ding

et al. 2017

Advances in Materials Science and Engineering

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To investigate the effects of nanoparticle content, storage time, and storage temperature on the storage stability of asphalt binders modified by nanoparticles, hot tube storage tests, softening point tests, and dynamic-shearing rheometer (DSR) tests were adopted to evaluate the properties of two kinds of nanotitanium dioxide (TiO 2 ) modified asphalt binders. A statistical one-way analysis of variance (ANOVA) test was employed to analyze the effects of those variations on the storage stability of the nano-TiO 2 modified asphalt binders. The results indicated that the softening point, the failure temperature, the dynamic-shear viscosity, and | * |/sin( ) of the binders increased with nanoparticle content. The storage stability of the binders decreased with nanoparticle content. The impact of storage time on the storage stability of the binders was remarkable when the storage time was more than 48 h. Moreover, the storage stability of the binders at low temperatures was better than that at high temperatures. Based on the one-way ANOVA, the size of nanoparticle had little influence on the storage stability of the nano-TiO 2 modified asphalt binders in this study. Reducing the nanoparticle size cannot effectively enhance the storage stability of the nanoparticle modified asphalt binder due to the agglomeration of nanoparticle.

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“…At the same time by modifying the bitumen, pavement performance can be improved [3][4][5][6][7]. To improve the performance virgin materials can be used.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Using Waste Welded Tuff Material as Mineral Filler in Asphalt Concrete

Karahançer¹,

Eriskin²,

Capali³

et al. 2016

SDÜ Fen Bil Enst Der

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Abstract:In this paper, the welded tuff waste-known as koyke in Isparta regionwas used in the hot mix asphalt (HMA) as mineral filler for reduction of the moisture susceptibility of HMA. Optimum binder content was assessed with Marshall Design Method. First of all, welded tuff was substituted as filler with limestone filler in proportion of 50% and 100%. After that Marshall Stability test was performed on specimens. The results showed that the 50% substitution was more effective than the 100% substitution. Therefore, welded tuff was substituted with limestone filler in proportion of 25%, 50%, 65% and 75%. Next, Indirect Tensile Strength test was practiced on the fabricated specimens and the results were assessed. According to the Indirect Tensile Strength results, welded tuff with 65% was given higher strength than the limestone filler. As a result, it has come up that welded tuff can be used as mineral filler in the hot mix asphalt.

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Storage stability and compatibility of asphalt binder modified by SBS graft copolymer

Cited by 183 publications

References 11 publications

Asphalt binders modified by SBS and SBS/nanoclays: effect on rheological properties

Asphalt binders modified by SBS and SBS/nanoclays: effect on rheological properties

Evaluation and Analysis of Variance of Storage Stability of Asphalt Binder Modified by Nanotitanium Dioxide

Investigation of Using Waste Welded Tuff Material as Mineral Filler in Asphalt Concrete

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