Abstract: A boundary screed rail assembly with screed rails (14) supported by feet members (42). The screed rails (14) providing a perimeter part (24) with upper and lower protection parts (26). The upper part (26) provides a planar horizontal surface (28), with a plurality of recesses (30) extending thereinto, alternating with downwardly extending engagement members (32) engageable in the concrete of a slab.

Abstract: A weldment connector for use with castable concrete slabs, each of the slabs including a length, width and depth and having at least one opposing and extending edge. The weldment connector has a substantially elongated and planar shaped front face and first and second legs which are both integrally formed with and extend from opposite end locations of the front face. The legs further extend in a combined axial and rotationally offset fashion relative the front face and each includes a horizontally extending and vertically spaced apart component with passes either above or below a mesh screen associated with the concrete slab. Additional features of the weldment connector include the width of the extending legs increasing, from a first end associated with the interconnecting and planar shaped front face, to outermost extending ends thereof.