Part of #CHARACTERIZATION OF THE CONCRETES REINFORCES METALLIC FIBERS Influence of the type and twinge of the fibres# :
Publishing year : 2009
Conference : First International Conference on Concrete Technology
Number of pages : 15
Abstract: In this paper, we present an experimental survey to quantify the contribution of metallic fibers to the main mechanical features of the composite, in order to specify its specific domains of use and to define the data necessary for dimensionality criteria. So, they are examining the laws of behavior (compression, direct traction, and bending one function of various compositions of mortars). Tow represents a fiber of metal, provided with hooks to the extremities and amorphous melting strips, with lengths of 15, 30 and 60 mm, for each of the five compositions of the mortar. dosage in the volume of used fibers remained stationary and equal to 1%. The fact that these two mark fibers corresponds to two fashions different from the back of the matrix is underscored. The formulations of the mortars are justified. They have all the same in common to use the same materials to have a report identical to E / C = 0.42 and a similar ovrability. A fluidifly is related to the mortars with fibers. The fibers modify the mechanism of damage under static solicitation, the first cracking is delayed, besides the fibers play a role in the sewing of the cracks, which increases the maximum load of ruin gained in static. If the addition of fibers does not increase the resistance in compression, it improves the breakthrough energy that can be estimated by calculating the area under the The curve effort is distinctly distortion. The direct test of our curves of effort distortion allows us to say that the presence of fibers in the matrix improves the flux of the test tubes. This effect is due to fibers that continue to "sew" the cracks that occur.