http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Linear Viscoelastic Behaviour of Geogrids Interface within Bituminous Mixtures
Reuber Freire,Hervé Di Benedetto,Cédric Sauzéat,Simon Pouget,Didier Lesueur 대한토목학회 2018 KSCE JOURNAL OF CIVIL ENGINEERING Vol.22 No.6
Recently, the use of geogrids as bituminous pavements reinforcement has increased in pavements construction and rehabilitation,mainly to avoid reflective cracking. One major research topic is to characterize the mechanical behaviour of actual reinforcedpavement structures, from laboratory experimentation and take it into account for the design. This paper aims at presenting amethodology for the determination of the Interface Linear Viscoelastic (LVE) behaviour of specimens reinforced with geogrids. Thismethod is based on a tension-compression test on cylindrical sample, classically used for complex modulus tests. A geogrid producedby Texinov was glued with tack coat, which constitute the studied interface. This geogrid is composed by fiberglass filaments andpolyester veil, both coated with emulsion. Axial cyclic tests at controlled strain mode of loading (tension-compression) wereperformed on the same bituminous mixtures samples with and without geogrid. The experimental data was fitted using the 2 Springs,2 Parabolic Elements and 1 Dashpot (2S2P1D) model both for the mixtures and for the interface. The results indicate that theproposed methodology can successfully provide the interface LVE behaviour.