Experimentation and numerical analysis of the influence of geogrids with emulsion insertion on the behavior of bituminous pavements - Case of Ouargla aerodrome

This paper presents an experimental study on a set of 30 specimens, tested on three-point bending, divided into two categories. With the insertion of geogrids and cathodic emulsions, the first category consists of 14 prismatic beams and the second of 16 pre-cracked and reinforced slab specimens. In...

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Bibliographic Details
Published inMateriales de construcción (Madrid) Vol. 74; no. 353; p. e339
Main Authors Bazine, R., Abdessemed, M., Kenai, S., Ouadah, N.
Format Journal Article
LanguageEnglish
Published Madrid Consejo Superior de Investigaciones Científicas 01.01.2024
Subjects
Airports
Asphalt pavements
Concrete
Damping
Emulsions
Experimental
Field tests
Flexible pavements
Geogrid
Geogrids
HWD
Insertion
Laboratories
Modelling
Modulus of elasticity
Modulus of rupture
Numerical analysis
Pavement
Polyesters
Temperature
Tensile strength
Algeria
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Summary:This paper presents an experimental study on a set of 30 specimens, tested on three-point bending, divided into two categories. With the insertion of geogrids and cathodic emulsions, the first category consists of 14 prismatic beams and the second of 16 pre-cracked and reinforced slab specimens. In situ tests were carried out using a heavy deflectometer (HWD) on a flexible runway of an airfield located in the city of Ouragla (800 km south-east of Algiers), before and after its reinforcement. This work showed, with a numerical calibration, that the geogrid with emulsion, improves the displacements and the stresses approximately 30% and increases the modulus of elasticity and the modulus of rupture (MOR) by 60% and 20%, respectively. The damping coefficient (k) can reach the value of 2 to 5, which increases the longevity of a reinforced flexible pavement.
ISSN:0465-2746
1988-3226
DOI:10.3989/mc.2024.355723