Application of tack coat in pavement engineering

Wang, Jiayu; Xiao, Feipeng; Chen, Zheng; Li, Xinghai; Amirkhanian, Serji

doi:10.1016/j.conbuildmat.2017.07.056

Cited by 63 publications

(19 citation statements)

References 70 publications

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“…As nonwoven geotextiles are applied on asphalt overlays, it is highly recommended a tack coat impregnation to provide adherence to the interface, and the most common material for tack coat services of flexible pavements is asphalt emulsion (Wang, Xiao, Chen, Li, & Amirkhanian, 2017).…”

Section: = × ×mentioning

confidence: 99%

Effect of Damage Caused by Site Materials on the Performance of Nonwoven Geotextiles Impregnated With Asphalt Emulsions Used on Paving

Lima¹,

J²,

Mlc³

2020

Preprint

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A rehabilitation technique for asphalt pavements with geosynthetic is the application of impregnated nonwoven geotextiles between deteriorated and new asphalt overlays. The performance investigation of impregnated geotextiles proves that they are enhancing in mechanical and hydraulic properties. Although, the installation process may cause severe impacts on these materials’ performance. During the installation, the geotextile suffers damage due to the traffic of high load vehicles, as compactors and pavers, and the friction with granular materials found under its layer or poured above it. This paper aims to investigate how the damage caused by granular materials on nonwoven geotextiles impregnated with different asphalt emulsions effect on their strength resistance and permittivity. From two types of nonwoven geotextiles: polypropylene and polyethylene terephthalate, the comparison uses geotextiles in three conditions: not impregnated, impregnated with asphalt emulsion of rapid setting, and impregnated with asphalt emulsion changed by an elastomeric polymer. Part of the samples followed the damage according to ISO 10722 procedure, placed between three different scenarios of granular materials, applying gravel, sand, and clay. After the damage process, the samples were submitted to mechanical and hydraulic properties evaluations.

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Section: = × ×mentioning

confidence: 99%

Effect of Damage Caused by Site Materials on the Performance of Nonwoven Geotextiles Impregnated With Asphalt Emulsions Used on Paving

Lima¹,

J²,

Mlc³

2020

Preprint

View full text Add to dashboard Cite

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“…e mechanisms of coating adhesion include the following aspects: (1) interfacial adhesion on a thin interface; (2) interdiffusion bonding between the coating and the substrate on a relatively thick interfacial region; (3) interlocking effect in which the coating/substrate interface is relatively rough [8][9][10]. In the bonding between asphalt layers, tack coat materials are generally bituminous emulsions [11], in which cationic emulsions are the most commonly used.…”

Section: Introductionmentioning

confidence: 99%

“…e bonding strength provided by a coating material is a function of various factors, including coating materials, surface condition, temperature, type of asphalt mixtures, etc. Considering the tack coat, it has been reported that the tack coat type, application rate, and their viscoelastic behaviors all significantly affected the bonding behaviors [6,[11][12][13][14][15]. Zhang [15] made a review about the application of tack coat in asphalt pavement in US.…”

Section: Introductionmentioning

confidence: 99%

Mode I Fracture Behaviors between Cement Concrete and Asphalt Concrete Layer

Tang

Huang

Peng

2021

Advances in Civil Engineering

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Asphalt overlay or concrete overlay on existing pavements is a common strategy for pavement maintenance. Interlayer bonding performance between asphalt and concrete layers is a critical concern in achieving optimal long-term structural performance due to the possible cracking along the interface. In this study, bonding behaviors of asphalt concrete interface were characterized by employing mode I fracture tests conducted at −10 and 25°C, respectively. Two typical interface conditions were manually prepared. A tack coat material was applied on the interface with four distinct rates: 0.1, 0.2, 0.3, and 0.4 L/m2. Parameters including fracture strength, stress intensity factor (KIC), facture energy (GF), and energy release rate (J integral) were selected to evaluate the fracture performance. Results showed that optimum tack coat rates were 0.1 and 0.3 L/m2 for specimens with unmilled and milled surfaces. At the optimum tack coat rates, KIC and GF increased with the increase of interface roughness at −10°C, while, at 25°C, J integral of specimens with unmilled interface was larger than that of specimens with milled interface at the optimum tack coat rates. Analysis of variance (ANOVA) was conducted to evaluate the significance of the factors on the fracture loads and found that surface roughness is significant at −10°C and becomes nonsignificant at 25°C. Temperature and tack coat rate were significant factors considering a given interface.

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“…Generally, adhesives used in steel bridge deck overlays can be classified into two major categories: thermoplastic and thermosetting materials . Thermoplastic adhesives consist of polymer‐modified asphalt, rubber–asphalt mastics, and the Eliminator system . Thermosetting adhesives include epoxy‐based adhesives, such as epoxy asphalt (EA) and pure epoxy resin .…”

Section: Introductionmentioning

confidence: 99%

Viscous, damping, and mechanical properties of epoxy asphalt adhesives containing different penetration‐grade asphalts

Sun

Gong

Liu

et al. 2018

J of Applied Polymer Sci

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Epoxy asphalt adhesive (EAA) is a thermosetting polymer modified asphalt that has been widely applied on steel bridge decks as a strong adhesive and waterproof layers. In this study, the influence of the asphalt penetration grade on the viscosity, damping and mechanical properties, bond strength, and microstructures of EAAs was investigated. The viscosity of the EAAs increased with increasing asphalt penetration grade. The presence of base asphalt increased the glass-transition temperature (T g ) of the neat epoxy. The asphalt penetration grade had a negligible effect on the T g values of the EAAs. The existence of base asphalt improved the damping behaviors of the neat epoxy. Moreover, the damping properties of the EAAs increased with increasing asphalt penetration grade. The tensile strength, elongation at break, and bond strength values of the EAAs increased with increasing asphalt penetration grade. The bond strengths of the EAAs were 7-to 10-fold higher than that of the neat asphalt. The asphalt penetration grade had a negligible effect on the bond strengths of the EAAs. Morphological observations revealed that the average size of the dispersed asphalt particles in the epoxy decreased with increasing asphalt penetration grade. A more homogeneous phase separation was formed in the EAA with a higher penetration-grade asphalt.

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Application of tack coat in pavement engineering

Cited by 63 publications

References 70 publications

Effect of Damage Caused by Site Materials on the Performance of Nonwoven Geotextiles Impregnated With Asphalt Emulsions Used on Paving

Effect of Damage Caused by Site Materials on the Performance of Nonwoven Geotextiles Impregnated With Asphalt Emulsions Used on Paving

Mode I Fracture Behaviors between Cement Concrete and Asphalt Concrete Layer

Viscous, damping, and mechanical properties of epoxy asphalt adhesives containing different penetration‐grade asphalts

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