A tie assembly for use during construction of monolithic cast-in-place concrete floor slabs bearing on a masonry stem wall. The tie assembly connects to one or more header blocks of the stem wall, and the tie assembly is configured to retain a concrete form member in place during the pour and curing period of the cast-in-place concrete. The tie assembly has a removable tab member with one or more slots for receiving a wedge stake, which braces the form member against lateral forces caused by the wet concrete. A mechanical fastener is driven through an upper portion of the wedge stake and concrete form, and the insertion tip of the mechanical fastener connects to a reinforcement holder for retaining a reinforcing member in place.

A precast concrete floor panel having stems molded in a mold with stem mold cavities and a deck. The deck can be formed in the same mold that includes the stem mold cavities or the concrete for the deck can be poured and cured on-site after the stems have been removed from the mold. The mold can include mold segments made from an insulating material that can remain attached to the stems to insulate the finished floor panel.

A precast concrete floor panel having stems molded in a mold with stem mold cavities and a deck. The deck can be formed in the same mold that includes the stem mold cavities or the concrete for the deck can be poured and cured on-site after the stems have been removed from the mold. The mold can include mold segments made from an insulating material that can remain attached to the stems to insulate the finished floor panel.

The present invention relates to a formwork arrangement for forming a suspended concrete floor slab comprising a change in level in an underside thereof, a support bracket for use with such a formwork arrangement, and a method for employing the support bracket and formwork arrangement.

The present invention relates to a formwork arrangement for forming a suspended concrete floor slab comprising a change in level in an underside thereof, a support bracket for use with such a formwork arrangement, and a method for employing the support bracket and formwork arrangement.

A portable floor composed of a plurality of rectangular sections attached by hinges so that adjacent sections pivot between a rolled configuration for transportation and storage and a flat configuration to bear weight. A finger edge of the section has a plurality of spaced fingers with a beveled surface that extends from the bottom of the finger upwardly to the tip of the finger. The opposed notch edge of the section has a plurality of spaced notches with a beveled surface from the top of the section downwardly into the notch. The beveled surfaces are at an angle of 15° to 75°. The finger edge meshes with the notch edge of the adjacent section. Adjacent top surfaces are planar when the notch and finger beveled surfaces abut each other. The hinge is a pin extending through aligned holes in the fingers and cogs between the notches.

A building component system including a rigid plastic form having an arched shape in each of two perpendicular vertical planes and having a plurality of protrusions configured to engage concrete poured on top of the rigid plastic form. The system also includes concrete poured on top of the form and cured to bind to the form at least at the plurality of protrusions, thereby forming an arched ceiling for a first story of a building and a flat roof or flat floor for a second story of a building.

A building component system including a rigid plastic form having an arched shape in each of two perpendicular vertical planes and having a plurality of protrusions configured to engage concrete poured on top of the rigid plastic form. The system also includes concrete poured on top of the form and cured to bind to the form at least at the plurality of protrusions, thereby forming an arched ceiling for a first story of a building and a flat roof or flat floor for a second story of a building.

A formwork system (100) includes a rebate board (105) having a generally L shaped profile in end view, the rebate board (105) having a first arm (110) and a second arm (120), the first and second arms (120) being angled at about 90 degrees relative to each other, the second arm (120) being securable to an upper portion of a formwork bottom board (200). The system (100) includes a brace (400) having a first engagement formation (410) configured to engage with the first arm (110), and a second engagement formation (435) configured to engage with a peg (220) or other fixed member.

A cement form assembly includes cement and a cement form. The cement form can include a ground facing surface extending horizontally on a ground support surface and a cement facing surface extending vertically and contacting the cement. An extension member extends outward from the cement form and includes a surface that extends the ground facing surface or the cement facing surface. The cement form and the extension member are each made, at least partially, of a foam material.