000004849 001__ 4849
000004849 005__ 20141119144559.0
000004849 04107 $$aeng
000004849 046__ $$k2002-06-02
000004849 100__ $$aG., Gidel
000004849 24500 $$aMODELING THE UNBOUND GRANULAR MATERIAL LONG TERM BEHAVIOR

000004849 24630 $$n15.$$pProceedings of the 15th ASCE Engineering Mechanics Division Conference
000004849 260__ $$bColumbia University in the City of New York
000004849 506__ $$arestricted
000004849 520__ $$2eng$$aThe purpose is to evaluate the use of soft limestones as unbound granular base materials. Two limestone materials were studied using cyclic triaxial tests. Two series of tests were performed, first to quantify the influence of fabric factors (aggregate type, water content, fines content, density) on their mechanical properties and second to study their permanent deformation behavior. A statistical model, relating the permanent deformations to the initial state of the material and to the applied stresses has been identified. The laboratory results were then compared with measurements on an experimental pavement, built with one of the tested materials. The permanent strains and water contents in the pavement were monitored for nine months, under real traffic. Results confirm a strong influence of moisture content on the modulus and permanent deformations of the granular material. The site results are in good agreement with the predictive models derived from the laboratory tests.

000004849 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000004849 653__ $$aunbound granular materials, cyclic triaxial test, initial state, permanent deformations, pavement performance

000004849 7112_ $$a15th ASCE Engineering Mechanics Division Conference$$cNew York (US)$$d2002-06-02 / 2002-06-05$$gEM2002
000004849 720__ $$aG., Gidel$$iD., Breysse$$iA., Denis
000004849 8560_ $$ffischerc@itam.cas.cz
000004849 8564_ $$s249776$$uhttps://invenio.itam.cas.cz/record/4849/files/431.pdf$$yOriginal version of the author's contribution as presented on CD, .
000004849 962__ $$r4594
000004849 980__ $$aPAPER