Influence of water on resilient properties of coarse granular materials
2006 (English)In: International Journal on Road Materials and Pavement Design, ISSN 1468-0629, Vol. 7, no 3, 369-404 p.Article in journal (Refereed) Published
The objective of this work was to investigate influence of water on resilient properties of a coarse (maximum particle size 90 mm) granular material using various gradings. Triaxial testing, using large-size samples (diameter 500 mm and height 1000 mm) and constant confining pressures, was performed at varying water content up to practically full saturation. Time Domain Reflectometry (TDR) was used to monitor transient in-sample water contents. Evaluation comprised resilient modulus and Poisson ratio in terms of total stresses, although the results were also discussed in the context of effective stresses. The coarsest grading experienced only a small reduction in resilient modulus when brought close to saturation, while specimens with an increased amount of fines and more even distribution responded with a substantial loss of resilient modulus upon increased water content. It also appeared that, as water content increased, the specimens became more dilative (increase in Poisson ratio).
Place, publisher, year, edition, pages
2006. Vol. 7, no 3, 369-404 p.
granular soils; effective stress; resilient modulus; water content; time domain reflectometry; matric suction
IdentifiersURN: urn:nbn:se:kth:diva-6961DOI: 10.3166/rmpd.7.369-404ISI: 000240077400006ScopusID: 2-s2.0-33845649671OAI: oai:DiVA.org:kth-6961DiVA: diva2:11822
QC 201007052007-04-122007-04-122012-03-20Bibliographically approved