Effects of Pavement Surface Type and Sample Preparation Method on Tack Coat Interface Shear Strength

Mohammad, Louay N.; Bae, Abraham; Elseifi, Mostafa A.; Button, J W; Patel, Nachiketa

doi:10.3141/2180-11

Cited by 48 publications

(24 citation statements)

References 6 publications

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“…However, the results of dynamic analysis more resembles with the practical results when bi linear law is utilized in predicting delamination [39]. On the other hand, to observe delamination using exponential law in commercial software ABAQUS, the fracture energies of material required to provide since Kenane and Benzeggagh [40] correlated delamination growth rate with the strain energy release rate.…”

Section: A Studies On Interface Behavior Analysis Of Multi-mentioning

confidence: 99%

A Review on Exploring the Behavior of Multi-Layer Composite Structures Under Dynamic Loading

Ali¹,

Liu²,

Fawzia³

et al. 2016

IJSCER

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This paper reviews the recent research progress on multi-layer composite structures composed of variety of materials. The utilization of multi-layer composite system is found to be common in metal structures and pavement systems. The layer of composite structure designed to encounter heavy dynamic energy should have sufficient ductility to counteract the intensity of energy. Therefore, the selection of materials and enhancement of interface bonding become crucial and both are discussed in this paper. The failure modes have also been explored in conjunction with stresses at failures and inferred solutions are also revealed. The paper attempts to reveal all technical facts on multi-layer composite structure in a broad field. 

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Section: A Studies On Interface Behavior Analysis Of Multi-mentioning

confidence: 99%

A Review on Exploring the Behavior of Multi-Layer Composite Structures Under Dynamic Loading

Ali¹,

Liu²,

Fawzia³

et al. 2016

IJSCER

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“…5) [18], the LCB (Laboratory of Civil engineering of Barcelona) Shear Test ( Fig. 6) [19], the FDOT (Florida Department of Transportation) Bond Strength Device [20], the ALDOT-NCAT Bond Strength Device [21] and the Louisiana Interlayer Shear Strength Tester [22], all Leutner-based devices, were also developed and used for several studies. The LPDS Tester was included later in the Swiss Standard SN 670 461 [23], and the LCB Shear Test was included in the NLT-328/08 Standard [24] as a shear testing method to evaluate shear strength of interface areas between pavement layers.…”

Section: Shear Testsmentioning

confidence: 99%

Test methods and influential factors for analysis of bonding between bituminous pavement layers

Raposeiras

Castro‐Fresno

Vega-Zamanillo

et al. 2013

Construction and Building Materials

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The durability and maintenance of pavements depend on several factors. One of the most influential is the bond between layers. This bond is responsible for ensuring all layers behave as a single entity, reducing cracks and deformation of the pavement. Several methods, developed by different authors over the past 30 years, to measure bonding between layers are analyzed in this paper. Different research lines are discussed, concluding that the most influential variables are: tack coat type, dosage, mixture type, surface characteristics, temperature, and emulsion breaking time. In order to reach the highest bond strength values, the following factors should be considered: high values of surface macro-texture, low temperatures, the use of heat-adhesive emulsion, a dosage from 300 to 450 g/m2 of residual bitumen and the compaction after emulsion break. Moreover, a non-destructive test method to assess tack coat dosage on site is proposed.

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“…Researchers have proven that ISS can be affected by many factors such as emulsion type, residual application rate, temperature, moisture, condition of surface, and type and texture of the surface. Mohammad et al quantified the effects of tack coat type, tack coat application rate, and surface type on the interface shear strength based on full-scale test application ( 4 ). Both milled and unmilled surfaces of HMA and Portland cement concrete (PCC) were evaluated.…”

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confidence: 99%

Factors Affecting the Interlayer Shear Strength of Laboratory and Field Samples

Sufian

Swiertz

Bahia

et al. 2020

Transportation Research Record: Journal of the Transportation R

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Asphalt emulsion is the most widely used tack coat material in the U.S. The objective of this study is to investigate factors that may affect the interlayer bond shear strength of asphalt emulsion tack coats of both laboratory and field compacted samples. The laboratory study included six types of tack coat materials applied on two surfaces with two residual application rates. The field study phase involved validation of the interlayer shear performance findings using field cores extracted from paving projects. The field study included taking cores of the existing layer, emulsions used for interlayer bonding, and loose mixes of new asphalt layers. Materials were collected to produce the laboratory prepared specimens for comparison with the field cores. Results of the laboratory study demonstrate that there is a direct relationship between the roughness (texture) of the existing surface and the interlayer shear strength (ISS) between two surfaces. Statistical analysis provided a strong correlation and indicated that 79% of the data variance can be explained with surface texture, emulsion type, application rate, and replicate effects. Comparing field cores with laboratory produced samples showed no clear relationship between the shear strength of laboratory and field specimens. It is speculated that the difference in compaction of the upper layers in the laboratory and field, and effect of shearing during coring of the samples from the field, resulted in higher laboratory shear values relative to field core values. The study highlights major challenges in using laboratory prepared samples to predict field behavior of tack coats.

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Effects of Pavement Surface Type and Sample Preparation Method on Tack Coat Interface Shear Strength

Cited by 48 publications

References 6 publications

A Review on Exploring the Behavior of Multi-Layer Composite Structures Under Dynamic Loading

A Review on Exploring the Behavior of Multi-Layer Composite Structures Under Dynamic Loading

Test methods and influential factors for analysis of bonding between bituminous pavement layers

Factors Affecting the Interlayer Shear Strength of Laboratory and Field Samples

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