Rheological analysis of multi-stress creep recovery (MSCR) test

Wasage, Thamindra Lakshan Jayanthi; Stastna, Jiri; Zanzotto, Ludo

doi:10.1080/10298436.2011.573557

Cited by 150 publications

(43 citation statements)

References 5 publications

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“…This test captures recovery and permanent deformation behavior of binders. Researchers have reported better correlation of non-recoverable creep compliance (J nr ) with rutting performance of asphalt mixes in laboratory as well as in the field [7,8,12]. The J nr is considered to have a better correlation with rutting performance of asphalt mixes compared to G*/sinδ [6,22].…”

Section: Introductionmentioning

confidence: 99%

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Comparison of different rheological parameters for rutting susceptibility of SBS + WMA modified binders

Singh

Kataware

2016

Innov. Infrastruct. Solut.

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Section: Introductionmentioning

confidence: 99%

“…A binder with high G*/sinδ will have lesser dissipated energy, and thus higher rut resistant. The G*/sinδ showed satisfactory results for unmodified binders [6][7][8]. However, this parameter showed unconvincing trend for polymer modified binders due to its inability to capture delayed elastic recovery [6,[9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Comparison of different rheological parameters for rutting susceptibility of SBS + WMA modified binders

Singh

Kataware

2016

Innov. Infrastruct. Solut.

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“…Similarly, correlation between rutting of FHWA ALF test sections and J nr at 25.6 kPa at 64°C was reported with r 2 = 0.82 [8]. Wasage et al [21] reported a good correlation between rut depth in Hamburg wheel tracking test and J nr at 12.8 kPa. The D'Angelo [8] and Wasage et al [21] stated that correlation at higher stresses (12.8 and 25.6 kPa) was observed due to heavy loading involved in the field.…”

Section: Introductionmentioning

confidence: 89%

“…Several studies observed better correlation between J nr estimated at 3.2 kPa and rutting performance of asphalt mixes in field and laboratory [10,12,20,21]. However, other studies argued and reported a good correlation between J nr estimated at high stresses and rutting performances of unmodified, SBS modified and/or crumb rubber modified asphalt binders.…”

Section: Introductionmentioning

confidence: 94%

“…Wasage et al [21] reported a good correlation between rut depth in Hamburg wheel tracking test and J nr at 12.8 kPa. The D'Angelo [8] and Wasage et al [21] stated that correlation at higher stresses (12.8 and 25.6 kPa) was observed due to heavy loading involved in the field. Masad and Somadevan [16] and Kose et al [14] reported that under heavy traffic, strain in asphalt binder could be 90-500 times higher than that of asphalt mixes.…”

Section: Introductionmentioning

confidence: 99%

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A study on rutting susceptibility of asphalt binders at high stresses using MSCR test

Kataware

Singh

2017

Innov. Infrastruct. Solut.

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Recently multiple stress creep recovery (MSCR) test is recommended to evaluate rutting performance of asphalt binders. The non-recoverable creep compliance (J nr ) parameter, an indicator of rut resistance of an asphalt binder is estimated at 3.2 kPa stress from the MSCR test. Further, J nr is used to rank asphalt binders for different loading conditions. However, many studies reported that maximum stress of 3.2 kPa in the current MSCR protocol may not capture high stress scenario resulting from heavy loading. Thus, evaluating performance under high stresses may help to better characterize asphalt binders for excessive loading conditions. Therefore, the present study was undertaken to evaluate rutting potential of three different asphalt binders: unmodified (VG 30), SBS polymer modified asphalt binder (PMB 40), and crumb rubber (ground tire rubber) modified (CRMB60) at different levels of stress: 3.2, 6.4, 12.8 and 25.6 kPa, tested at 52, 64 and 76°C.The paper presents effects of high stresses on J nr , percent recovery (R), percentage difference between J nr at two stress levels (J nr,diff ), and ranking of asphalt binder. It was found that combined effects of stress and temperature can have significant impact on performance of asphalt binders. The results show that an increase in stress results in high J nr , decreased R, and increased J nr,diff for all the asphalt binders. The plot between J nr and R gives a better picture of performance of asphalt binders. The R and J nr values should be coupled together to evaluate potential of asphalt binder suitable for different traffic loading and temperature conditions.

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Preparation and properties of high viscosity and elasticity asphalt by styrene–butadiene–styrene/polyurethane prepolymer composite modification

Tian

Zhang

et al. 2020

J of Applied Polymer Sci

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The porous asphalt pavements is often used in important occasion for its special properties and performance which can be to a great extent attributed to the binder—high viscosity and elasticity asphalt (HVEA). To prepare high demanding binder for porous asphalt pavements, the polyurethane prepolymer (PUP) and styrene–butadiene–styrene (SBS) were used to modify the matrix asphalt compositely. First, based on a series of physical tests, the effects of binder composition on performance of SBS/PUP HVEA binder (SBS/PUP‐HVEA) were investigated. Then the Fourier transform infrared (FTIR) test was conducted to investigate the reaction mechanism of SBS/PUP‐HVEA binder. Last, the fluorescence microscopy, stability tests, multiple stress creep recovery test, and differential scanning calorimetry test were carried out to evaluate and compare the phase structure, storage, high‐temperature performance, thermostability characteristics of several HVEA binders. It is found that the composite modification of SBS and PUP can produce high quality binder which possesses high viscosity and high elasticity. And the composition of SBS/PUP‐HVEA were recommended as follows: Shell‐70# can be chosen as matrix asphalt, the contents of SBS modifier (SBS1301:SBS4303 = 1:2), H2122A PUP, chain extender M‐OEA, and crosslinker sulfur were suggested 4%, 5%, 0.5%, and 1‰, respectively. The new functional groups observed in FTIR confirmed the existence of physical and chemical reactions in the modification process, which were beneficial to improve the high temperature performance and storage stability of the binder. SBS/PUP‐HVEA had good phase structure, storage stability, high temperature performance, and thermostability compared to other HVEA binders. This study demonstrated that the SBS/PUP compositely modified asphalt possessed high viscosity and high elasticity, which can be used in the porous asphalt mixture and other highly demanding working environment as well.

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Rheological analysis of multi-stress creep recovery (MSCR) test

Cited by 150 publications

References 5 publications

Comparison of different rheological parameters for rutting susceptibility of SBS + WMA modified binders

Comparison of different rheological parameters for rutting susceptibility of SBS + WMA modified binders

A study on rutting susceptibility of asphalt binders at high stresses using MSCR test

Preparation and properties of high viscosity and elasticity asphalt by styrene–butadiene–styrene/polyurethane prepolymer composite modification

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