Experimental research on the development of rutting in asphalt concrete pavements reinforced with geosynthetic materials

• Main Authors: Alfredas LaurinaviÄius, Rolandas Oginskas
• Format: Article
• Language: English
• Published: Vilnius Gediminas Technical University 2006-12-01
• Series: Journal of Civil Engineering and Management
• Subjects: asphalt concrete; asphalt reinforcement; geosynthetics; the modulus of elasticity of asphalt concrete; the depth of rutting
• Online Access: http://localhost/journals.vgtu.lt/index.php/JCEM/article/view/8824
• ISSN: 1392-3730; 1822-3605

The article sets out to explore reasons for the development of shear strains and rutting in asphalt pavement as well as to suggest and describe the main methods for reducing the deformation. The impact of geosynthetic materials is defined through reological characteristics of asphalt: the modulus of elasticity and the viscosity of asphalt. The research has been conducted on the experimental road section in the city of Vilnius. The measurements have been based on the plateâ€bearing test. Sustaining the measurements results is defining the dependency of geosynthetics materials on the depth of rutting and the modulus of elasticity of asphalt concrete. The paper also includes regression equations which show the interdependence of the modulus of elasticity of asphalt concrete and the depth of rutting. Eksperimentiniai provėžų atsiradimo ir vystymosi tyrimai asfaltbetonio dangose, armuotose geosintetinÄ—mis medžiagomis Santrauka IÅ¡nagrinÄ—tos pagrindinÄ—s Å¡lyties deformacijų ir provėžų asfaltbetonio dangose susidarymo priežastys bei pagrindiniai bÅ«dai Å¡ioms deformacijoms mažinti. Geosintetinių medžiagų įtaka Å¡ioms deformacijoms nagrinÄ—jama remiantis reologinÄ—mis asfaltbetonio charakteristikomis: asfaltbetonio tampros moduliu ir asfaltbetonio klampumu. GeosintetinÄ—mis medžiagomis armuotų asfaltbetonio dangų tyrimai atlikti eksperimentiniame bandymų ruože, Vilniaus mieste, naudojant statinį bandymo Å¡tampÄ…. Remiantis gautais tyrimų rezultatais iÅ¡vestos priklausomybÄ—s, kaip provėžų gylį lemia geosintetinÄ—s medžiagos, ir asfaltbetonio tampros modulis. Å iame straipsnyje pateiktos regresinÄ—s priklausomybÄ—s, atspindinÄios, kaip provėžų gylis priklauso nuo asfaltbetonio tampros modulio. ReikÅ¡miniai žodžiai: asfaltbetonis, asfaltbetonio armavimas, geosintetinÄ—s medžiagos, asfaltbetonio tampros modulis, provėžų gylis. First Published Online: 14 Oct 2010