Ensaios triaxiais de carga repetida de uma brita

Measurements related with repeated-load behaviour, on a crushed-stone aggregate, were made in a large triaxial cell on specimens 100 mm in diameter. Stresses were applied using a pneumatic loading sistem and axial strains were measured using two LVDT's mounted on the top cap. Permanent axial deformation was also observed with a dial gage attached to a devise fixed to the loading rod, out-side the triaxial cell. Measurements of axial repeated-load applied were made by means of a load cell screwed to loading rod. Testing program aimed to study the effect of applied stresses and maximum particle size on resilient deformations, and the effect of applied stresses and number of load applications on permanent deformations. A new model representing the resilient behaviour of crushed-stone aggregates, is proposed in order to improve pavements design and strengthen project methods.

Grantor dc:publisher

Universidade Federal do Rio de Janeiro

Year dc:date.issued

1987

Author dc:creator

• Pérez Espinosa, Vicente Robinson

Advisor dc:contributor.advisor

• Medina, Jacques de

• Engenharia Civil

Statement dc:rights

• Acesso Aberto

Language dc:language

por

Handle dc:identifier.uri

http://hdl.handle.net/11422/3738

OAI identifier oai:identifier

oai:pantheon.ufrj.br:11422/3738