The identification of compaction of concrete is classically obtained by dynamic tests. These experiments are, however, quite difficult to analyse directly. We have chosen here to perform an experimental testing in static's with the aim of obtaining compaction of concrete.…
The identification of compaction of concrete is classically obtained by dynamic tests. These experiments are, however, quite difficult to analyse directly. We have chosen here to perform an experimental testing in static's with the aim of obtaining compaction of concrete. This experimental investigation is based on two different tests. A first one, which is new, is a quasi-oedometric compression test adapted to concrete. A new cell has been designed and tests have been done on concrete and mortar. The second test is a pure hydrostatic compression test. We have used a high-pressure fluid cell initially developed for metallic materials. Experimental principles of the hydrostatic and oedometric tests are presented. We show several results obtained on mortar and concrete. We have compared the results of oedometric and hydrostatic compaction of mortar and shown that is not possible to separate in a constitutive model the hydrostatic behaviour from the deviatoric one.