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4. Uniaxial tensile test on a new cement composite having a hardening behaviour



Title: 4. Uniaxial tensile test on a new cement composite having a hardening behaviour
Author(s): C. Boulay, P. Rossi, J.-L. Tailhan
Paper category : conference
Book title: 6th International RILEM Symposium on Fibre Reinforced Concretes
Editor(s): M. di Prisco, R. Felicetti and G.A. Plizzari
Print-ISBN: 2-912143-51-9
e-ISBN: 2912143748
Publisher: RILEM Publications SARL
Publication year: 2004
Pages: 61 - 68
Total Pages: 8
Nb references: 7
Language: English


Abstract: The LCPC patented a new cement composite (CEMTECmultiscale®), which have been developed to be stress hardening in tension and to have an ultra-high tensile strength. It is a multi-scale cement composite. One of the industrial applications aimed is related to thin slabs. Consequently, the research objective is to characterize the tensile behaviour of this material used in a thin bended slab.
To achieve that, this tensile behaviour is measured from a bending test (easier to perform than an uniaxial tensile test) by an inverse approach. In order to validate the pertinence of this inverse approach, it is necessary to compare its results with those given by an uniaxial tensile test. So, an uniaxial test has been developed especially with this objective. This development has been done by using finite element analysis to determine the test specimen dimensions and the test set-up.
The specimen retained is a dog bone specimen with 75 cm overall length.
This paper presents in details the different steps which have permitted to conceive this uniaxial tensile test, and some experimental results obtained with it.These results confirms without ambiguity that this material is stress hardening in tension, very ductile, and has a uniaxial tensile strength of about 20 MPa.


Online publication: 2004-08-30
Publication type : abstract_only
Public price (Euros): 0.00