Abstract
The present study investigates the benefits of reinforcing the subgrade soils in flexible pavements. Three types of Soils A, B, and C, and one type of polypropylene fiber having aspect ratios of 50, 84, and 100 were selected. The California bearing ratio (CBR) and unconfined compressive strength tests were conducted on unreinforced and reinforced soils. The optimum quantity of fibers was decided based on CBR, modulus of elasticity (Ei) and failure stress. The static triaxial tests were conducted on unreinforced and reinforced soils as well as on other pavement layers at a confining pressure of 40kPa. These stress-strain data were used as input parameters for evaluating the vertical compressive strain at the top of subgrade soils using elastoplastic finite-element analysis. This vertical compressive strain at the top of unreinforced and reinforced subgrade soils was used for estimating the improvement in service life of the pavement or reduction in thicknesses of different layers for the same service life due to reinforcing the subgrade soils.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
