A floor tile for use in a flooring system, comprises a floor tile body and a female connecting member associated with a lateral edge of the floor tile body. The female connecting member has a curved profile, which may include an m-shaped profile, and is configured to mate with an adjacent floor tile. A male connecting member is associated with an opposite lateral edge of the tile body, the male connecting member having a shape corresponding to a curved profile of a female connecting member of an adjacent tile to thereby mate with the adjacent floor tile. A draft angle of the female connecting member and the male connecting member may be substantially parallel.

A building slab pad in the form of a square plate is divided into four analogous sections, each section being formed by four linear projections on the top surface that run from the center of each edge and converge in the center of the pad. On each of the two side edges of the sections there is a trapezoidal protrusion respectively with a base narrower than the rest of the protrusion and a keyway respectively corresponding in shape to the protrusions, with two protrusions and two keyways alternating on each side edge of the pad. On the top surface there are linear top indentations running from the corners of the pad and converging in the center of the pad. On the underside are four linear bottom indentations running from the center of each edge to the center of the adjacent edge to form a square shape.