Comparative study of flexible pavement layers moduli backcalculation using approximate and static approach

Guzzarlapudi, Sunny Deol; Adigopula, Vinod Kumar; Kumar, Rakesh

doi:10.1016/j.matpr.2017.06.272

Cited by 4 publications

(2 citation statements)

References 7 publications

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“…In this study, the back-calculation on the deflection basins was performed using the commercial software ELMOD 6 (evaluation of layer modules and overlay design) [72], already applied in various scientific research projects [73][74][75][76].…”

Section: Itsm Resultsmentioning

confidence: 99%

“…In this study, the back-calculation on the deflection basins was performed usin commercial software ELMOD (evaluation of layer modules and overlay design) already applied in various scientific research projects [73][74][75][76]. The initial outcome of the FWD test is a deflection basin, which requires a backcalculation process to determine the stiffness moduli of the materials.…”

Section: Falling Weight Deflectometer Tests (Fwd)mentioning

confidence: 99%

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Modified Asphalt with Graphene-Enhanced Polymeric Compound: A Case Study

Bruno,

Carpani,

Loprencipe

et al. 2024

Infrastructures

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In recent years, the increased use of heavy commercial vehicles with higher axle weights has required the development of innovative technologies to improve the mechanical properties of asphalt concrete conglomerates, such as fatigue resistance and rutting. This study offers a comprehensive comparative analysis of different types of asphalt concrete tested in four trial sections (S1, S2, S3, S4) of the SP3 Ardeatina rural road in Rome, under actual traffic and operational conditions. More precisely, the pavement technologies applied include modified asphalt concrete with graphene and recycled hard plastics for S1, asphalt concrete modified with styrene–butadiene–styrene (SBS) for S2, asphalt concrete with a standard polymeric compound for S3, and traditional asphalt concrete for S4. The evaluation approach involved visual inspections in order to calculate the pavement condition index (PCI) and falling weight deflectometer (FWD) tests. In addition, back-calculation analyses were performed using ELMOD software to assess the mechanical properties. The laboratory tests revealed superior properties of M1 in terms of its resistance to permanent deformations (+13%, +15%, and +19.5% compared to M2, M3, and M4, respectively) and stiffness (10,758 MPa for M1 vs. 9259 MPa, 7643 MPa, and 7289 MPa for M2, M3, and M4, respectively). These findings were further corroborated by the PCI values (PCIS1 = 65; PCIS2 = 17; PCIS3 = 28; PCIS4 = 29) as well as the FWD test results after 5 years of investigation, which suggests greater durability and resistance than the other sections.

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Section: Itsm Resultsmentioning

confidence: 99%

Section: Falling Weight Deflectometer Tests (Fwd)mentioning

confidence: 99%