Performance evaluation of geocell-reinforced reclaimed asphalt pavement (RAP) bases in flexible pavements

George, Anu; Banerjee, Aritra; Puppala, Anand J.; Saladhi, Manikanta

doi:10.1080/10298436.2019.1587437

Cited by 41 publications

(17 citation statements)

References 21 publications

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“…It is important to consider the effect that occurs in the geocells of Neoloy® from exposure to the environment (Figure 7), since these demonstrate the best behavior against long-term deformation [11][12][13][14][15].…”

Section: Resultsmentioning

confidence: 99%

Analysis of the Creep and the Influence on the Modulus Improvement Factor (MIF) in Polyolefin Geocells Using the Stepped Isothermal Method

Ruge¹,

Gomez²,

Moreno³

2020

Geopolymers and Other Geosynthetics

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The article shows the analysis of the behavior at long-term deformation of geocells for a set time period, due to its importance on the modulus improvement factor (MIF), which is considered in the design stage of a reinforced pavement structure with geocells. When inquiring into the research about the structural behavior that exists in the geocells, as well as the distribution of stresses that this generates, in order to determine how important the existence of a deformation in the geocell is. We proceeded with the sampling and execution of the test "modified stepped isothermal method (SIM) for geocells." The test was carried out under the comparison of the materials and thicknesses of the sample, with the purpose to analyze the influence on the behavior of a pavement structure. The stresses generated at the level of the granular subbase layer of a pavement are taken into account as load effects.

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Section: Resultsmentioning

confidence: 99%

Analysis of the Creep and the Influence on the Modulus Improvement Factor (MIF) in Polyolefin Geocells Using the Stepped Isothermal Method

Ruge¹,

Gomez²,

Moreno³

2020

Geopolymers and Other Geosynthetics

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“…Sieve analysis tests on the RAP were performed according to the AASHTO T27 standard and samples were prepared using the uniform gradations conforming to FHWA recommendations ( 44 ). Basic material characterizations of the RAP are also shown in Table 1 ( 26 ). The equation for the two-parameter resilient modulus model for the RAP was developed as per Hicks and Monismith ( 45 ), which is presented in Table 1.…”

Section: Methodsmentioning

confidence: 99%

“…The unavailability of a design module, based on previous studies on the reinforcement of the unbound base layer on expansive soils in Texas, restricted the use of the existing software ( 37 ). However, repeated load testing on the GRRB layer provided a composite modulus which can be incorporated in the software for the design of flexible pavement ( 26 ). In this study, the thickness of the asphalt layers was kept at 2 in.…”

Section: Pavement Design Approachmentioning

confidence: 99%

“…This temporary layer allowed more stress on top of the base layer during this period. The majority of the permanent deformations of the RAP layer are expected during the first 300–500 loading cycles ( 26 ). The temporary surface layer helped to initiate the plastic deformations in the base layer by allowing more vertical stresses on top of the geocell reinforced section.…”

Section: Construction Of the Test Sectionsmentioning

confidence: 99%

“…Geocells are a three-dimensional honeycomb structure generally made from high-density polyethylene (HDPE) sheets, which can provide lateral confinement for the infill materials ( 22 , 23 ). Large-scale repeated load tests conducted by various researchers indicated that geocell reinforcement could improve the strength and stiffness of the base layer by offering lateral confinement ( 24 – 27 ). The improvement on the bearing capacity because of geocell can be estimated from the design approach provided by the Presto Geosystem ( 28 ).…”

mentioning

confidence: 99%

See 2 more Smart Citations

Field Performance of Geocell Reinforced Recycled Asphalt Pavement Base Layer

Khan

Biswas

Banerjee

et al. 2020

Transportation Research Record

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Utilization of 100% recycled asphalt pavement (RAP) material in the base layer of road construction can provide a cost-effective and sustainable solution. However, excessive permanent deformation of RAP reduces its applicability for such projects. In this study, the effectiveness of geocell reinforced RAP base (GRRB) layers for the flexible pavement sections constructed over the expansive subgrade is investigated. Furthermore, the mechanism involved in the improvement of material stiffness because of the development of additional confining stress in the reinforced base layer is also presented in this paper. During the initial monitoring period, the average vertical compressive stresses over the pavement subgrade for the reinforced sections were observed to be significantly lower in comparison with the corresponding unreinforced sections. The preliminary results indicate that GRRB layers can significantly improve the performance of the pavement by controlling the subgrade deformation.

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Effectiveness of Double-Layer HDPE Geocell System to Reinforce Reclaimed Asphalt Pavement (RAP)-Base Layer

Khan

Biswas

Banerjee

et al. 2021

Lecture Notes in Civil Engineering

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Performance evaluation of geocell-reinforced reclaimed asphalt pavement (RAP) bases in flexible pavements

Cited by 41 publications

References 21 publications

Analysis of the Creep and the Influence on the Modulus Improvement Factor (MIF) in Polyolefin Geocells Using the Stepped Isothermal Method

Analysis of the Creep and the Influence on the Modulus Improvement Factor (MIF) in Polyolefin Geocells Using the Stepped Isothermal Method

Field Performance of Geocell Reinforced Recycled Asphalt Pavement Base Layer

Effectiveness of Double-Layer HDPE Geocell System to Reinforce Reclaimed Asphalt Pavement (RAP)-Base Layer

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