Pavement Overlay Design using Falling Weight Deflectometer
Swetha G1, Chandana I2, Rakesh M3
1Swetha G*, Civil Engineering department, Gokaraju Rangaraju Institute of Engineering Technology, Affiliated to JNTUH, Hyderabad.
2Chandana I, Civil Engineering department, Gokaraju Rangaraju Institute of Engineering Technology, Affiliated to JNTUH, Hyderabad.
3Rakesh M, Civil Engineering department, Gokaraju Rangaraju Institute of Engineering Technology, Affiliated to JNTUH, Hyderabad.
Manuscript received on November 12, 2019. | Revised Manuscript received on November 23, 2019. | Manuscript published on 30 November, 2019. | PP: 8491-8494 | Volume-8 Issue-4, November 2019. | Retrieval Number: D9181118419/2019©BEIESP | DOI: 10.35940/ijrte.D9181.118419
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Pavement evaluation is a technique of assessing the condition of a pavement, both structurally and surface characteristics. Pavements which have been subjected to traffic, deform elastically under load which depends on type subgrade soil and its compaction level, pavement thickness and its composition, drainage conditions, pavement surface temperature and wheel load. There are number of different types of pavement deflection testing equipment which are being used all over the world. The most common types are Benkelman Beam Deflection (BBD), Falling Weight Deflectometer (FWD) and Dynamic Cone Penetrometer. BBD test widely used method in which rebound deflection is measured on static loading and there by evaluating strength of the pavement. However with limitations and practical difficulties of BBD, FWD was chosen for the study. The deflections of the pavement are recorded due to the dynamic loading and studied for further strength determination. A 4-lane National Highway has been selected and tested for residual strength and it is designed for overlay as per IRC:115-2014 & IRC:37-2012 using FWD equipment and with the assistance of KGPBACK and IIT PAVE software’s. An overlay of 50 mm on one direction and 100 mm on opposite direction was recommended to meet the functional and structural requirement respectively.
Keywords: Falling Weight Deflectometer (FWD), Pavement overlay, KGPBACK, IIT PAVE, IRC:115-2014 and IRC:37-2012..
Scope of the Article: Software Defined Networking and Network Function Virtualization.