Influence of water and mica content on resilient properties of coarse granular materials
2008 (English)In: The international journal of pavement engineering, ISSN 1029-8436, Vol. 9, no 3, 215-227 p.Article in journal (Refereed) Published
Elevated amounts of free mica particles in unbound granular materials used in road construction are believed to detrimentally influence bearing capacity. The objective of presented work was to investigate the influence of mica content on resilient properties of coarse granular material (maximum particle size 63mm) under varying water contents. The test scheme comprised triaxial tests, using constant confining pressures, at incrementally raised water contents up to practically full saturation. Increased mica content was achieved by replacing a part of the base material grading smaller than 4mm, with an equal amount of pure muscovite mica of similar grading, hence keeping the overall particle size distribution unchanged. Generally, resilient modulus decreased with increased mica content and elevated water contents caused reduction in stiffness. In relative terms, the reduction in resilient modulus caused by water decreased with increased mica content.
Place, publisher, year, edition, pages
2008. Vol. 9, no 3, 215-227 p.
Granular materials; Mica; Moisture; Time domain reflectometry; Triaxial test
IdentifiersURN: urn:nbn:se:kth:diva-6963DOI: 10.1080/10298430701551193ScopusID: 2-s2.0-46149100774OAI: oai:DiVA.org:kth-6963DiVA: diva2:11824
QC 20100705. Uppdaterad från Submitted till Published i DiVA 20100705.2007-04-122007-04-122012-03-20Bibliographically approved