Influence of the gritting material applied during the winter services on the asphalt surface performance

Wang, Dawei; Xie, Xiaochen; Oeser, Markus; Steinauer, Bernhard

doi:10.1016/j.coldregions.2015.01.001

Cited by 10 publications

(3 citation statements)

References 9 publications

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“…Skid resistance is developed when the wheel prevents rotating along the pavement surface; it is one of the most important indicators of traffic safety. Skid resistance of a pavement depends on a wide variety of factors such as surface texture, material properties, type of pavement, and traffic (Luce et al 2007;Mahboob Kanafi et al 2015;Wang et al 2015). Skid resistance of a pavement decreases with repetitions of traffic and increases the risk of skidding of vehicles, especially on wet surfaces.…”

Section: Introductionmentioning

confidence: 99%

Site Assessment of Surface Texture and Skid Resistance by Varying the Grit Parameters of an SMA

Gökalp

Saltan

et al. 2022

J. Transp. Eng., Part B: Pavements

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For the safe operation of vehicles, pavement should provide adequate skid resistance, which can be achieved by using high polishing-resistant aggregate in wearing courses. However, supplying high-quality aggregate is not always feasible due to high transportation costs. For this reason, a method called gritting was adapted to meet the Highway Technical Specification (HTS) of Turkey in 2013. According to the method, for certain parts of the country, the wearing course can be constructed with local aggregates that have minimum polished stone value (PSV) of 40 (PSV ≥ 40), but, in this case, the surface must be covered with a high polishing-resistant aggregate (PSV ≥ 50), after the rollers' first pass. The objective of this study was to improve the present gritting method by investigating the effect of grit parameters on pavement performance under real traffic conditions. In this regard, during its construction, the wearing course of O-51 Highway was gritted with different aggregate types (slags and natural), sizes (1-3; 1-5 mm), spreading amount (1.5; 2; 2.5 kg=m 2 ), and spreading time (before and after the first pass of a roller) on eight test sections. Then, the macrotexture and skid resistance performance of these sections were evaluated under real traffic and environmental conditions for longer than 4 years. Changes in surface texture and skid resistance with respect to traffic were determined for each section. The results showed that higher skid resistance values were obtained at the sections gritted with metallurgical slags. Additionally, the sections gritted with 1-5 mm aggregates had better skid resistance than those gritted with 1-3 mm, while the change in mean texture depths were not very significant.

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Section: Introductionmentioning

confidence: 99%

Site Assessment of Surface Texture and Skid Resistance by Varying the Grit Parameters of an SMA

Gökalp

Saltan

et al. 2022

J. Transp. Eng., Part B: Pavements

View full text Add to dashboard Cite

show abstract

“…The surface of the pavement may be deteriorated with time due to traffic loadings, environmental conditions, and poor maintenance/ rehabilitation management (Sarsam and Al Shareef 2015;Wang et al 2015b). Loss of skid resistance of a pavement surface, a major cause of vehicle skidding especially on wet surfaces, is the significant reason for road condition-related traffic accidents.…”

Section: Introductionmentioning

confidence: 99%

Effect of Aggregate Microtexture Losses on Skid Resistance: Laboratory-Based Assessment on Chip Seals

Ergin

Gökalp

2020

J. Mater. Civ. Eng.

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Skid resistance has long been recognized as one of the most important pavement surface characteristics for safer roads. Evaluation of skid resistance of pavement is crucial but it is not an easy task. Moreover, it depends on numerous parameters such as pavement type, materials and tire properties, and environmental conditions. Aggregate texture changes significantly according to its origin and affects the skid resistance performance of the road surfaces. In the current study, chip seal samples were produced with different aggregate types at different polishing levels to evaluate the effect of aggregate microtexture on skid resistance performance. The Micro-Deval (MD) test device was utilized to obtain polished aggregates. Different polishing levels were provided by distinct revolutions of the MD drum. To monitor the change in aggregate surface with the polishing process, aggregates were monitored by scanning electron and optical microscopes at each level. Mean texture depths (MTDs) of chip seals were determined with outflow meter test. On the other hand, dynamic friction tester (DFT) and British pendulum tester (BPT) were implemented for assessment of skid resistance according to the relevant ASTM standards. Skid resistance and texture measurements were further used to identify the International Friction Index (IFI) for each sample. In addition, a correlational analysis was conducted between DFT and BPT results, and variable relationships were set for different speeds. Consequently, better skid resistance values were observed for chip seals produced by slags than the ones with natural aggregates at each polishing level. After fulfilling the economic and environmental requirements, using metallurgical by-products is recommended for long-lasting skid-resistant pavement surfaces. Additionally, it can be concluded that MD apparatus may be considered an easier, more cost-effective, and faster way to assess the polishing resistance of aggregates.

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“…There are also studies on the behaviour of bituminous mixtures in contact with the different de-icing agents. Wang et al [13] noted that, compared to other anti-icing agents, such as sand and quartz dust, salt does not produce a polished surface. Hassan et al [14] indicated that the value of Indirect Tensile Strength (ITS) for asphalt mixtures exposed to salt after 25 freeze-thaw cycles is similar to other de-icing agents, such as potassium acetate, sodium formate or urea.…”

Section: Introductionmentioning

confidence: 99%

Impact of Temperature Changes and Freeze—Thaw Cycles on the Behaviour of Asphalt Concrete Submerged in Water with Sodium Chloride

et al. 2020

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One of the main applications of salt in civil engineering is its use as a de-icing agent on roads in cold areas. The purpose of this research is to find out the mechanical behaviour of an asphalt concrete when it is subjected to temperature changes and freeze–thaw cycles. These temperature interactions have been carried out for dry specimens, specimens submerged in distilled water and specimens submerged in salt water (5% of sodium chloride, NaCl). An AC16 Surf D bituminous mixture was evaluated under three types of temperature interaction: three reference series remained at a controlled temperature of 20 °C, another three series were subjected to five freeze–thaw cycles and the last three series have been subjected to one year outside in Santander (Spain). The mechanical behaviour of the mixture was determined by Indirect Tensile Strength Test (ITS), Water Sensitivity Test (ITSR) and Wheel Tracking Test, Dynamic Modulus Test and Fatigue Tests. The results of the tests show that, although the temperature changes have a negative effect on the mechanical properties, salt water protects the aggregate-binder adhesive, maintains the mechanical strength, increases the number of load cycles for any strain range and reduces the time that the mixture is in contact with frozen water.

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Influence of the gritting material applied during the winter services on the asphalt surface performance

Cited by 10 publications

References 9 publications

Site Assessment of Surface Texture and Skid Resistance by Varying the Grit Parameters of an SMA

Site Assessment of Surface Texture and Skid Resistance by Varying the Grit Parameters of an SMA

Effect of Aggregate Microtexture Losses on Skid Resistance: Laboratory-Based Assessment on Chip Seals

Impact of Temperature Changes and Freeze—Thaw Cycles on the Behaviour of Asphalt Concrete Submerged in Water with Sodium Chloride

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