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

Abstract

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 plate‐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.

Santrauka

Išnagrinetos pagrindines šlyties deformaciju ir provežu asfaltbetonio dangose susidarymo priežastys bei pagrindiniai būdai šioms deformacijoms mažinti. Geosintetiniu medžiagu itaka šioms deformacijoms nagrinejama remiantis reologinemis asfaltbetonio charakteristikomis: asfaltbetonio tampros moduliu ir asfaltbetonio klampumu. Geosintetinemis medžiagomis armuotu asfaltbetonio dangu tyrimai atlikti eksperimentiniame bandymu ruože, Vilniaus mieste, naudojant statini bandymo štampa. Remiantis gautais tyrimu rezultatais išvestos priklausomybes, kaip provežu gyli lemia geosintetines medžiagos, ir asfaltbetonio tampros modulis. Šiame straipsnyje pateiktos regresines priklausomybes, atspindinčios, kaip provežu gylis priklauso nuo asfaltbetonio tampros modulio.

Keywords:

• asphalt concrete
• asphalt reinforcement
• geosynthetics
• the modulus of elasticity of asphalt concrete
• the depth of rutting

Reikšminiai žodžiai::

• asfaltbetonis
• asfaltbetonio armavimas
• geosintetines medžiagos
• asfaltbetonio tampros modulis
• provežu gylis