Comparative mechanistic-empirical analysis for design of alternative cold recycled asphalt technologies with conventional pavement. Issue 7 (3rd October 2018)

• Record Type: Journal Article
• Authors: Arimilli, Sravani; Nagabhushana, M.N.; Jain, P.K.
• Is Part Of: Road materials and pavement design. Volume 19:Issue 7(2018)
• Page Start: 1595
• Page End: 1616
• Publication Date: 2018-10-03
• Subjects: ANSYS -- KENPAVE -- IITPAVE -- resilient modulus; Road materials -- Periodicals; Highway engineering -- Periodicals; Pavements -- Design and construction -- Periodicals; 625.805
• DOI: 10.1080/14680629.2017.1338187
• Languages: English
• ISSNs: 1468-0629

Abstract

Abstract : It is essential to carry out a detailed study on the mechanical behaviour of materials so as to evaluate the distress parameters of flexible pavements. This study can be performed through finite element simulations like ANSYS, KENPAVE, IITPAVE, etc. However, this study was mainly carried out using the pavement designing tool ANSYS to study and compare the mechanical behaviour of a typical conventional pavement with hot bituminous surfacing, with cold recycled emulsified and foamed base pavements with fresh overlay. Further, the results obtained from this ANSYS were compared with other simulations like KENPAVE and IITPAVE. Optimum design thickness of the pavement was determined based upon the predicted tensile and compressive strain from laboratory resilient modulus values. The analytical results showed that, linear elastic analysis in both KENPAVE and IITPAVE match well, but a slight lesser tensile strain and vertical displacement values are observed in ANSYS. Also, the study was extended towards the comparative cost benefit analysis of both recycled and conventional mixes. Through this study, it was observed that recycled mix is economical when compared to conventional mixes.