Cost-effectiveness analysis of chip seal with and without millings

Tarefder, Rafiqul A.; Ahmad, Mohiuddin

doi:10.1080/10298436.2016.1219599

Cited by 12 publications

(17 citation statements)

References 2 publications

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“…There are many kinds of preventive maintenance technologies, including fog seal, slurry seal, micro-surfacing, thin overlay, and ultra-thin wearing course [12,13,14,15]. Among them, fog seal is the most convenient technology to construct and fastest to resume traffic [16,17].…”

Section: Introductionmentioning

confidence: 99%

Silicone Resin Polymer Used in Preventive Maintenance of Asphalt Mixture Based on Fog Seal

Cui

et al. 2019

Polymers

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The commonly used materials in fog seal are emulsified asphalt and modified emulsified asphalt. Nevertheless, there are some intractable problems including aging under ultraviolet, poor permeability, and moisture susceptibility. Therefore, silicone resin polymer was used as a kind of innovative fog seal material in this study. Physicochemical properties of solidified silicone resin were characterized. X-ray computed tomography and 3D reconstruction technology were used to evaluate permeability and distribution of silicone resin polymer in an asphalt mixture. Moisture sensitivity and high-temperature performance of the asphalt mixture maintained by silicone resin polymer were also detected. The results show that surface characteristic of silicone resin can effectively isolate moisture, thereby improving moisture resistance of the asphalt mixture. Silicone resin was found to be evenly distributed throughout the pores of a sample when the dosage was 400 or 600 mL/m2. The pore filling rate increased by 16.3% when the dosage was changed from 200 to 400 mL/m2, whereas it only increased by 3.7% when dosage increased from 400 to 600 mL/m2. Moisture damage resistance of asphalt mixtures generally increased as the dosage of silicone was increased. However, as the dosage increased from 400 to 600 mL/m2, the growth rate in residual Marshall stability (RMS) and tensile strength ratio (TSR) slowed significantly since the pore filling effect of silicone has reached the upper limit. Dosage of silicone resin has little effect on the results of the rutting test while it has significant influence on Hamburg wheel tracking test (HWT). Furthermore, it was found that 400 mL/m2 is the optimum silicone dosage for open-graded friction course (OGFC)-13 mixture in consideration of permeability, distribution, performance of mixture, and economic cost.

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Section: Introductionmentioning

confidence: 99%

Silicone Resin Polymer Used in Preventive Maintenance of Asphalt Mixture Based on Fog Seal

Cui

et al. 2019

Polymers

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“…( 7) At the beginning of the test, the lateral load column moved horizontally to provide horizontal thrust for the side-by-step loading of the lower specimen. The bond shear strength of the specimen was calculated according to Equation (3).…”

Section: Aging Resistance Testmentioning

confidence: 99%

“…The preventive maintenance technology of asphalt pavement is developing with the development of asphalt concrete technology [1,2]. At present, the main conservation measures include crack sealing, fog sealing, chip sealing, slurry sealing, milling, and resurfacing, local regeneration, reconstruction, and so on [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Development and Performance Evaluation of a High-Permeability and High-Bonding Fog-Sealing Adhesive Material

et al. 2021

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Herein, the effects of the contents of emulsified asphalt, waterborne epoxy resin emulsion, and curing agent on the permeability, bond shear strength, water stability, and aging resistance of epoxy-emulsified asphalt were studied. A formulation of epoxy-emulsified asphalt as a fog-sealing adhesive material was recommended, and a comparison between the fabricated adhesive material and a traditional Chinese fog-sealing adhesive material was conducted to verify the technical performance of the new material. In addition, the strength formation mechanism of the epoxy-emulsified asphalt was revealed via microcosmic analysis. Results show that the curing agent content mainly affects the permeability of epoxy-emulsified asphalt, and the emulsified asphalt content significantly affects the bond shear strength, water stability, and aging resistance. Moreover, the ratio of waterborne epoxy resin emulsion to the curing agent (epoxy ratio) has a certain effect on the bond shear strength. In the recommended formulation (a high-permeability and high-bonding fog-sealing adhesive material, which can be referred to simply as HPBFA), emulsified asphalt accounts for 80% of the total mass of the mixture, and the epoxy ratio is 2:1–3:1. It can improve air permeability, bond shear strength, water stability and aging resistance. The HPBFA-cured material exhibits a continuous three-dimensional network structure, hydrophobic surface, and large contact angle. Furthermore, the initial thermal weight loss temperature of the HPBFA-cured material is significantly higher than the environmental aging temperature. Additionally, the maximum temperature decomposition range is 0–160 °C, indicating improved strength, wear resistance, permeability, and aging resistance of the material.

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Section: Introductionmentioning

confidence: 99%

“…Researchers also investigated the cost-effectiveness of chip seals by varying types of aggregate, surface condition of chip seals, and climate zone ( 26 , 27 ). It was found that chip seals constructed with millings offered better economic benefits compared with chip seals constructed with virgin chips ( 26 ). It was also observed that a smooth chip seal surface yielded a high benefit–cost ratio (B/C) regardless of the climate zone of the project location ( 27 ).…”

Section: Introductionmentioning

confidence: 99%

Short-Term Field Performance and Cost-Effectiveness of Crumb-Rubber Modified Asphalt Emulsion in Chip Seal Applications

Rahman

Sarkar

Elseifi

et al. 2021

Transportation Research Record: Journal of the Transportation R

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Chip sealing is a commonly used pavement maintenance technique that aims to delay pavement deterioration by reducing water infiltration and restoring skid resistance. The objective of this study was to evaluate the short-term field performance and cost-effectiveness of chip seals prepared with different types of asphalt emulsion and application rates. A newly introduced crumb-rubber modified asphalt emulsion was evaluated, one that allows chip seal installation at the same temperature as a standard emulsion. Types of emulsion included a crumb-rubber modified asphalt emulsion (CRS-2TR), a polymer-modified emulsion (CRS-2P), and a conventional unmodified emulsion (CRS-2). Application rates were obtained from the Louisiana Department of Transportation and Development (DOTD), the Texas Department of Transportation (DOT) specifications, and from the chip seal design method recommended in NCHRP Report 680. Seven chip seal sections were constructed and monitored regularly over a 12-month period. In the northbound lane, the chip seal section constructed with CRS-2TR (0.37 gal per square yard [gsy]) was the best performer statistically. In the southbound lane, the chip seal sections constructed with CRS-2TR and CRS-2P (0.31 gsy) performed similarly. Furthermore, the maximum Service Life Extension (SLE) was observed for the CRS-2TR (0.31 gsy) chip seal sections, whereas the chip seal sections constructed with CRS-2 had the lowest SLE. In addition, the most cost-effective chip seal section was achieved by the application of CRS-2TR emulsion at the Louisiana DOTD recommended emulsion application rate.

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Cost-effectiveness analysis of chip seal with and without millings

Cited by 12 publications

References 2 publications

Silicone Resin Polymer Used in Preventive Maintenance of Asphalt Mixture Based on Fog Seal

Silicone Resin Polymer Used in Preventive Maintenance of Asphalt Mixture Based on Fog Seal

Development and Performance Evaluation of a High-Permeability and High-Bonding Fog-Sealing Adhesive Material

Short-Term Field Performance and Cost-Effectiveness of Crumb-Rubber Modified Asphalt Emulsion in Chip Seal Applications

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