| Facility type: | Testing of soil and rocks |
| Contact email: | c.gregoire@brrc.be |
| Contact info: | User name: Collette Grégoire User position: Researcher User telephone: +32 2 766 03 19 Street: Boulevard de la Woluwe 42 City: BRUSSELS Postcode: 1200 |
| Website address: | http://www.brrc.be |
Description
Short technical description: Laboratory studies of the behaviour of granular base layers. The cyclic load triaxial test makes it possible to simulate in the laboratory the loads applied by road traffic to granular materials used in base and subbase layers of road structures. It can be used both to investigate the reversible behaviour of materials suggested for use - with a view to correct structural design - and to investigate the long-term behaviour of materials used. A cylindrical test specimen is placed in a cell and subjected to a confining pressure and a cyclic axial stress. The tests are performed either under constant confining pressure (method B - standard NBN EN 13286-7) or under variable confining pressure (method A - standard NBN EN 13286-7). During testing, the strains in the specimen are measured by LDTs (Local Deformation Transducers) which consist of four strain gauges forming a full Wheatstone bridge, glued to a thin flexible strip in phosphor bronze. Last upgrade: 0