Flexural properties of cemented granular materials for pavement design

A. Sounthararajah, Leslie Wong, Nhu Nguyen, Ha Hong Bui, Jayantha Kodikara, Peerapong Jitsangiam

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearch

3 Citations (Scopus)

Abstract

Cementation stabilization of unbound granular materials often offers a feasible solution for the strengthening of existing degraded unbound pavements. The primary determination mode of cemented pavement materials is fatigue cracking. Flexural properties including flexural modulus and tensile strain at break are incorporated into the fatigue criteria of cemented materials. However, there are no universally accepted testing protocols available for cemented pavement materials to determine the aforementioned properties in the laboratory. The four-point bending test is chosen in this paper to study the flexural properties of two different cemented pavement materials as it more closely simulates the stress/strain gradients generated in service. The results from this study revealed that, the strain at break could not be determined with sufficient precision as the tensile strain at the bottom of the specimen just prior to the point of fracture increases uncontrollably without further increase in tensile stress. Based on the response of cemented materials to different loading conditions, an equation is tentatively proposed for determination of the modulus for pavement design.

Original languageEnglish
Title of host publication8th RILEM International Conference on Mechanisms of Cracking and Debonding in Pavements
Subtitle of host publicationJune 7-9, 2016, Nantes, France
EditorsArmelle Chabot, Christophe Petit, William G. Buttlar, Gabriele Tebaldi, Eshan V. Dave
PublisherSpringer
Pages403-409
Number of pages7
ISBN (Electronic)9789402408676
ISBN (Print)9789402408669
DOIs
Publication statusPublished - 1 Jan 2016
EventRILEM – 8th International Conference on Mechanisms of Cracking and Debonding in Pavements - Nantes, France
Duration: 7 Jun 20169 Jul 2016

Publication series

NameRILEM Bookseries
PublisherSpringer Netherlands
Volume13
ISSN (Print)2211-0844
ISSN (Electronic)2211-0852

Conference

ConferenceRILEM – 8th International Conference on Mechanisms of Cracking and Debonding in Pavements
CountryFrance
CityNantes
Period7/06/169/07/16

Keywords

  • Cement stabilization
  • Flexural properties
  • Pavement materials

Cite this

Sounthararajah, A., Wong, L., Nguyen, N., Bui, H. H., Kodikara, J., & Jitsangiam, P. (2016). Flexural properties of cemented granular materials for pavement design. In A. Chabot, C. Petit, W. G. Buttlar, G. Tebaldi, & E. V. Dave (Eds.), 8th RILEM International Conference on Mechanisms of Cracking and Debonding in Pavements: June 7-9, 2016, Nantes, France (pp. 403-409). (RILEM Bookseries; Vol. 13). Springer. https://doi.org/10.1007/978-94-024-0867-6_56