Forensic investigation of the cause(s) of slippery ultra-thin bonded wearing course of an asphalt pavement: influence of aggregate mineralogical compositions

Beyene, Mengesha; Meininger, Richard; Gibson, Nelson; Muñoz, José F.; Youtcheff, Jack

doi:10.1080/10298436.2015.1025780

Cited by 12 publications

(8 citation statements)

References 6 publications

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“…In the 1970s, UTWC was firstly applied to maintain pavements in France [14]. Later, UTWCs were widely used in many countries such as Germany, the United States, the United Kingdom, and China [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Ultra-Thin Wearing Course with Different Polymer Modified Asphalt Binders

Chen

Wei

et al. 2022

Polymers

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Ultra-thin wearing course (UTWC) as an asphalt overlay is widely used in pavement maintenance for extending pavement service life. Researchers focused on improving and evaluating its performance, yet few researchers compare the performance of typical UTWCs. Moreover, some traditional asphalt mixture tests are improper for UTWC due to the thicknesses of UTWC, which is thinner than the traditional asphalt overlay. This study further evaluated the advantages and disadvantages of typical UTWCs. A series of tests were conducted to compare the comprehensive performance of three typical UWTC products, including SMA-10, Novachip-B, and GT-10. Moreover, this study improved the rutting test to evaluate its rutting performance more accurately. Rutting specimens of 20 mm thick and 50 mm thick composite specimens (20 mm UTWC + 30 mm Portland cement concrete slabs) were prepared. Two types of PCC slabs were used, including unprocessed PCC slabs and PCC slabs with preset cracks. The test results showed that Novachip-B showed the best water stability and weakest raveling resistance, while GT-10 showed the best fatigue and anti-skid performance. The rutting performance of UTWCs was reduced because of the influence of preset cracks. The rutting depth of GT-10 was only 60–90% of that of others, showing the comprehensive performance of GT-10 was better than that of others. These results provide a significant reference for the research and application of UTWC.

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Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Ultra-Thin Wearing Course with Different Polymer Modified Asphalt Binders

Chen

Wei

et al. 2022

Polymers

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“…It can efficiently improve the road surface smoothness, anti-skid performance, and noise reduction effect, as well as repair moderate to mild road diseases [5]. Since the introduction of very thin asphalt concrete (Bétons Bitumineux Trés Minces, BBTM) and ultra-thin asphalt concrete (Bétons Bitumineux Ultra Minces, BBUM) in France in the 1970s [6,7], countries around the world have been competing to develop and apply ultra-thin wear layer technology, including SMA10 in Germany [8], Novachip and OGFC in the United States [9][10][11][12], Lastika in Indonesia [13], VTHMAL in the United Kingdom [14], and GT Tech in China [15].…”

Section: Introductionmentioning

confidence: 99%

Design of Cold-Mixed High-Toughness Ultra-Thin Asphalt Layer towards Sustainable Pavement Construction

Yang

Chen

et al. 2021

Buildings

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Ultra-thin asphalt overlay has become the mainstream measure of road preventive maintenance due to its good economic benefits and road performance. However, hot mix asphalt concrete technology is widely used at present, which is not the most ideal way to promote energy saving and emission reduction in the field of road maintenance. At the same time, the ultra-thin friction course based on cold mix technology, such as slurry seal layer, micro-surface, and other technologies, are still far behind the hot mix friction course in terms of crack resistance. In this research, by establishing an integrated design of materials and structures, a cold paving technology called “high-toughness cold-mixed ultra-thin pavement (HCUP)” is proposed. The high-viscosity emulsified bitumen prepared by using high-viscosity and high-elasticity modified bitumen is used as the binder and sticky layer of HCUP. The thickness of HCUP is 0.8–2.0 cm, the typical thickness is 1.2 cm, and the nominal maximum size of the coarse aggregate is 8 mm. Indoor tests show that HCUP-8 has water stability, anti-skid performance, high temperature performance, peeling resistance, and crack resistance that are not weaker than traditional hot-mixed ultra-thin wear layers such as AC-10, Novachip, and GT-8. At the same time, the test road paving further proved that HCUP-8 has excellent road performance with a view to providing new ideas for low-carbon and environmentally friendly road materials.

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“…It is therefore of great significance to study the skid resistance characteristics of coarse aggregate and derive a PSV attenuation law to facilitate better-informed material selection for pavement design and construction and also predict the service life of aggregate materials in practical settings. Numerous research efforts have been reported on the pavement skid resistance problem; these studies investigated the influence of aggregate type [9][10][11], mineral composition [12], particle gradation [13,14], and surface morphology [15,16] on pavement skid resistance. While important advances have been made through these studies, the dynamics of PSV attenuation in coarse aggregate have rarely been reported.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Model of Polished Stone Value Attenuation in Coarse Aggregate

et al. 2020

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The polished stone value (PSV) of coarse aggregate is closely related to pavement skid resistance and traffic safety. However, the determination of the PSV of coarse aggregate is conventionally a time- and energy-intensive process. To facilitate the test process of PSV in materials selection and pavement design and for the prediction of the service life of aggregate materials in practical service, here a new mathematical model of PSV attenuation in coarse aggregate, which employs a physical polishing process analysis, is proposed. The PSVs of four types of coarse aggregates (calcined bauxite, granite, basalt, and limestone) were analyzed through a polishing experiment, and the corresponding mechanism was investigated via scanning electron microscopy analysis. The modeling results are in good agreement with experimental results. The aggregate PSV is affected by both the macrotexture and microtexture of the aggregate surface. The PSV due to the macrotexture exhibits a strong negative correlation with the Vickers hardness of the aggregates and decreases exponentially as the polishing time increases. The attenuation rate decreases as the fractal box dimension in the aggregate surface morphology increases. The primary factor influencing the macrotexture service life and the half-life is the aggregate surface morphology. The PSV due to the microtexture exhibits a strong positive correlation with the Vickers hardness of the aggregates, whereas there is a poor correlation with the aggregate surface morphology and polishing time. The proportion of the aggregate PSV due to the microtexture increases as the aggregate hardness increases. These results highlight the effectiveness of a new modeling approach that may potentially assist in predicting the anti-slip performance and durability of coarse aggregates.

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Forensic investigation of the cause(s) of slippery ultra-thin bonded wearing course of an asphalt pavement: influence of aggregate mineralogical compositions

Cited by 12 publications

References 6 publications

Performance Evaluation of Ultra-Thin Wearing Course with Different Polymer Modified Asphalt Binders

Performance Evaluation of Ultra-Thin Wearing Course with Different Polymer Modified Asphalt Binders

Design of Cold-Mixed High-Toughness Ultra-Thin Asphalt Layer towards Sustainable Pavement Construction

Dynamic Model of Polished Stone Value Attenuation in Coarse Aggregate

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