Assessment of Fiber Reinforced Concrete Slab and Subsoil Interaction - Experiment

• Published in: Key engineering materials 2018-01, Vol.761, p.169-172
• Main Authors: Hrubesova, Eva, Pinka, Miroslav, Mohyla, Marek, Lahuta, Hynek, Duris, Lukáš
• Format: Article
• Language: English
• Subjects: Concrete; Concrete slabs; Contact stresses; Fiber reinforced concretes; Hydraulic presses; Monitoring; Pressure cells; Reinforced concrete; Strain gauges
• ISSN: 1013-9826; 1662-9795; 1662-9795
• DOI: 10.4028/www.scientific.net/KEM.761.169

The paper is focused on the interaction of the fibre reinforced concrete slab and the subsoil using both the results of experimental measurements on the experimental stand. Performed experimental measurements include monitoring of the concentrically loaded concrete slab with the dimensions of 2 m x 2 m and thickness of 0.15 m. This slab is in the interaction with subsoil of sandy clay character. The experimental load is applied in sequential steps by using a hydraulic press. During the tests the strain gauges and hydrostatic levelling method were used for the monitoring of the settlements of the slab. The contact stresses and the stresses corresponding to a certain depth below the slab were monitored by using a flat pressure cells. In the conclusion of this paper there are formulated the basic aspects of concrete slab-subsoil interaction, the results of various performed experimental measurements and the comparison of stress below the surface resulted from interaction of soil and slab of different degree of reinforcement.