Punching shear behavior of three dimension textiles reinforced cementitious composite plates

Abstract EN

Self compacting mortars (SCMs) plate specimens with dimension of (500×500×40) mm were cast with three-dimension (3D) textile glass fiber having three diverse thicknesses 6, 10, and 15mm to measure their punching strength.

Plates with one and two layers of chicken wires, as well as micro steel fiber of 0.75 % volume fraction were tested under punching for comparison.

Punching shear tests have been carried out by applying concentrated load with steel cylinder of 50mm diameter and 10 mm height.

The mechanical behavior of SCMs plate was discussed in terms of observed behavior, ultimate load, load - deflection curves, and crack pattern.

The results indicated an enhancement in the ultimate load at (28 and 90) day ages by about (7.82% and 24%), respectively.

The maximum ultimate load was increased by about (58.4 and 54.1) % for plates reinforced by micro steel fiber at 28 and 90 days, respectively as compared with reference.

The maximum deflection at the center of the Self-compact mortars plates for all tested plates was improved.