Influence of mineral fillers on the rheological response of polymer-modified bitumens and mastics

Cardone, Fabrizio; Frigio, F.; Ferrotti, Gilda; Canestrari, Francesco

doi:10.1016/j.jtte.2015.06.003

Cited by 65 publications

(27 citation statements)

References 13 publications

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“…On the contrary, in accordance with nonrecoverable creep compliance and viscoelastic response, the addition of EAF steel slag led to a noticeably enhancement of antirutting elastic properties of bitumens, especially at lower test temperatures and stress levels as well as when mixed with the warm binder W, stressing the significance of additive-filler physical-chemical interaction [28].…”

Section: High Service Temperature Behaviourmentioning

confidence: 70%

“…Temperature and stress dependency of bitumens and mastics were evaluated by performing MSCR tests at 58, 64, 70, and 76 ∘ C applying 0.1 and 3.2 kPa. An additional higher stress level (10 kPa) was considered for the mastics according to previous studies [28,37]. Specimens were conditioned at the test temperature for 20 minutes before testing.…”

Section: Testing Program and Methodsmentioning

confidence: 99%

“…Therefore, this study is addressed to the assessment of rheological properties of mastics, that is, the blend of bitumen and filler, since it is well known that the major distresses in bituminous pavements are principally related to mastic performance. In fact, the filler mainly stiffens the bitumen decisively influencing, as a function of its nature and composition, the mechanical properties of asphalt mixtures in terms of cracking and rutting resistance [25][26][27][28][29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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: High Service Temperature Behaviourmentioning

confidence: 70%

Section: Testing Program and Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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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show abstract

“…The mastics were prepared following an optimised protocol so as to obtain homogeneous bitumen-filler mixes [27]. At first, the limestone L and bitumens H and R were heated in the oven at 165°C until the consistency of the bitumens became sufficiently fluid.…”

Section: Methodsmentioning

confidence: 99%

Self-healing capability and thixotropy of bituminous mastics

Mazzoni

Stimilli

Canestrari

2016

International Journal of Fatigue

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“…filler ? sand) in different testing setups and machines, like DSR [2], Annular Shear Rheometer (ASR) [5][6][7][8], Dynamic Mechanical Analysis (DMA) [9][10][11] and Tension Compression Tests [12,13]. All of these tests are based on applying dynamic loads (shear or tension-compression) onto bitumen, mastic or mortar specimens with different shape at different temperatures, frequencies and loading modes.…”

Section: Introductionmentioning

confidence: 99%

Introducing a new specimen shape to assess the fatigue performance of asphalt mastic by dynamic shear rheometer testing

2018

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Early failure of asphalt pavements is a common issue all around the world. Damages are caused by various reasons like insufficient binder or aggregate quality, an inadequate mix design or improper handling in the production/construction process. The effects of binder, aggregates and mix design have been widely studied and state-of-the-art testing methods are available for both, hot-mix asphalt (HMA) and for each component. An important part in HMA belongs to the asphalt mastic, where no standardized method is available to allow a quality control. Asphalt mastic is the mix of bitumen with aggregates smaller than 63 (125) lm and covers the coarse aggregates as the actual binding component in the mix. This research aims at developing a testing method for asphalt mastic based on fatigue tests. The dynamic shear rheometer (DSR) was found as a suitable device for this purpose. The DSR fatigue test consists of the 8 mm parallel-plate geometry widely used for binder performance grading with a sample height of 3 mm. Instead of a cylindrical specimen shape, a hyperboloid of one sheet is applied. This shape predetermines the point of failure and prevents adhesion/interface failures between the mastic specimen and the upper or lower DSR stainless steel plate.The specimens are prepared directly in the DSR employing a silicone mould to ensure an exact specimen shape. This test can be applied to all DSR devices without costly changes or additional equipment as long as sufficient cooling capacity and torque can be provided from the DSR. This fatigue test makes it possible to assess the fatigue performance of binders and mastic samples.

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Influence of mineral fillers on the rheological response of polymer-modified bitumens and mastics

Cited by 65 publications

References 13 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

Self-healing capability and thixotropy of bituminous mastics

Introducing a new specimen shape to assess the fatigue performance of asphalt mastic by dynamic shear rheometer testing

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