Formwork wall panel and formwork assembly

A formwork wall panel having an operative inner surface, to face towards an inner space to be filled with building material, and an opposing operative outer surface;

• wherein the operative inner surface of the formwork wall panel includes a brace coupling formation operatively adapted to engage a wall panel coupling formation of a brace operatively extending between the formwork wall panel and an opposing second formwork wall panel;
• wherein the brace coupling formation includes a first outer coupling member, a second outer coupling member and a central coupling member located between the first outer coupling member and the second outer coupling member, the first outer coupling member, second outer coupling member and the central coupling member extending outwardly from the operative inner surface of the formwork wall panel;
• wherein the central coupling member includes (i) a central coupling member stem which extends outwardly from the operative inner surface of the formwork wall panel, and (ii) a transverse central coupling member flange;
• wherein the wall panel coupling formation includes a first slider member and a second slider member with the first slider member and the second slider member being connected on opposing sides of a transverse slider connector;
• wherein the brace coupling formation defines a panel slot arrangement operatively adapted to slidably engage one of the wall panel coupling formation first slider member and the wall panel coupling formation second slider member with the panel slot arrangement including a first panel slot and second panel slot respectively adapted to slidably engage one of the wall panel coupling formation first slider member and the wall panel coupling formation second slider member;
• wherein one of the wall panel coupling formation first slider member and the wall panel coupling formation second slider member is connected to a brace panel of the brace with the brace panel including concrete cavities to facilitate concrete flow across the brace panel;
• wherein (i) the first outer coupling member and the central coupling member define the first panel slot and (ii) the central coupling member and the second outer coupling member define the second panel slot;
• wherein the first outer coupling member includes (i) a first coupling member stem which extends outwardly from the operative inner surface of the formwork wall panel and (ii) a transverse first coupling member flange which extends towards the central coupling member;
• and
• wherein the first outer coupling member stem includes a transverse first outer coupling member rib outwardly extending from the first coupling member stem away from the central coupling member, in use the first outer coupling member rib adapted to engage a first slot in a services channel located adjacent the operative inner surface of the formwork wall panel.