Failure Investigation of a Foamed-Asphalt Highway Project

Chen, Dar Hao; Bilyeu, John; Scullion, Tom; Nazarian, Soheil; Chiu, Chui Te

doi:10.1061/(asce)1076-0342(2006)12:1(33)

Cited by 19 publications

(6 citation statements)

References 3 publications

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“…This concern arose because of a relative lack of experience in Virginia (or elsewhere) in using the materials on roadways with high truck volumes. Chen et al highlighted the potential for these issues in Texas, especially for when similar materials were exposed to moisture (19,20). To investigate the potential for early rutting, periodic manual rut measurements with a 6-ft rut beam were made in the right wheelpath of the right lane for approximately the first 3,200 ft of the project.…”

Section: Postconstruction Testingmentioning

confidence: 99%

In-Place Pavement Recycling on I-81 in Virginia

Diefenderfer

Apeagyei

Gallo

et al. 2012

Transportation Research Record: Journal of the Transportation R

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During the 2011 construction season, the Virginia Department of Transportation completed an in-place pavement recycling project to rehabilitate a 3.66-mi section of pavement on southbound I-81 in Augusta County near Staunton. In 2008, the directional traffic volume was 23,000 vehicles per day with 28% being trucks (85% of the truck traffic consisted of five- and six-axle tractor trailer combination vehicles). This section of the Interstate showed structurally related deterioration at the pavement surface, had a low structural capacity, and had a history of frequently recurring maintenance. The construction project used three in-place pavement recycling techniques (full-depth reclamation, cold central-plant recycling, and cold in-place recycling) and a unique lane-closure schedule to accomplish the work. A construction contract with a value of $7.64 million and a time frame of approximately 8 months was awarded in December 2010. The in-place recycling portion of the work was completed in fewer than 20 workdays spanning 6 weeks. This construction work represents the first time in the United States that those three recycling techniques were combined in one project on the Interstate system, and the project showed that the construction techniques can be used on higher-volume facilities. The construction techniques and the traffic management plan are described, and the results of acceptance testing and initial field testing are discussed. Suggestions for future study based on lessons learned during this project are offered.

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Section: Postconstruction Testingmentioning

confidence: 99%

In-Place Pavement Recycling on I-81 in Virginia

Diefenderfer

Apeagyei

Gallo

et al. 2012

Transportation Research Record: Journal of the Transportation R

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“…This allows the asphalt to disperse through the recycled material. Additional water is sprayed into the mixing chamber to achieve the optimal moisture content for compaction [6].…”

Section: Materials Design and Constructionmentioning

confidence: 99%

Investigating In Situ Properties of Recycled Asphalt Pavement with Foamed Asphalt as Base Stabilizer

Plati

Loizos

Papavasiliou

et al. 2010

Advances in Civil Engineering

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The objective of the present study was to conduct a comprehensive field experiment for the in situ assessment of in-depth recycled asphalt pavement using foamed asphalt as a stabilization treatment for base works. For this purpose Nondestructive Testing (NDT) data collected using the Falling Weight Deflectometer (FWD) and Ground Penetrating Radar (GPR) along a foamed asphalt recycled pavement section was thoroughly analysed. Critical issues including the stabilized material curing and the contribution of the asphalt layers to the structural properties of the in-depth recycled pavement are discussed. In addition, recommendations concerning the improvement of the structural condition of the in-depth recycled pavement are developed based on this practical approach of investigation using NDT.

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“…An important issue concerning FA-stabilized materials is the absence of a mix design methodology suitable for CIR mixes [16]. Some researchers have pinpointed the moisture susceptibility of Foamed Asphalt base materials [17], especially prior to Asphalt Concrete (AC) overlay construction [18], while others have concluded that FA outperforms bitumen emulsion for base stabilization in terms of increased moisture and frost resistance [8,18]. Skotnicki et al [14] argued in favor of higher strength values of FA mixtures compared to those containing asphalt emulsion.…”

Section: Introductionmentioning

confidence: 99%

Structural Performance of Foamed Asphalt Base in a Full Depth Reclaimed and Sustainable Pavement

2023

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Environmental awareness and budgetary constraints in road construction and rehabilitation require innovative and at the same time environmentally friendly solutions in favor of resource conservation, in any type of pavement intervention. In the meantime, surface interventions in severely deteriorated pavements are insufficient, increasing as such the recycling potential of existing materials in Full Depth Reclamation (FDR). This study addresses the efficiency of an FDR process in which the recycled base course of an existing semi-rigid pavement is stabilized with Foamed Asphalt (FA). The adverse effects of FA curing, which have a significant impact on pavement evaluation, particularly in the early stages of a pavement’s life cycle, prompted the conduct of a comprehensive testing campaign at two different periods, shortly after pavement rehabilitation and five years thereafter. The campaign included nondestructive testing at the aforementioned periods using Ground Penetrating Radar (GPR) and the Falling Weight Deflectometer (FWD), which facilitate the structural evaluation of the FA base. Using the collected nondestructive testing data, the principles of Multi-Layer Elastic Theory (MLET) and Genetic Algorithms (GA) are used to investigate the performance of the FA base. Both analysis tools captured the FA strength increase in the second period, but an increased variance of the FA modulus was observed mainly in the first test period, probably due to the curing effect. In addition, GA showed an advantage over other, more conventional tools for back-analysis of pavement stiffness, resulting in an interesting correlation potential of FA modulus to a deflection-based parameter reflecting the condition of the FA layer. Overall, the study contributes to the development of a practical methodology suitable for the evaluation of non-conventional and sustainable pavement structures.

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Failure Investigation of a Foamed-Asphalt Highway Project

Cited by 19 publications

References 3 publications

In-Place Pavement Recycling on I-81 in Virginia

In-Place Pavement Recycling on I-81 in Virginia

Investigating In Situ Properties of Recycled Asphalt Pavement with Foamed Asphalt as Base Stabilizer

Structural Performance of Foamed Asphalt Base in a Full Depth Reclaimed and Sustainable Pavement

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