Foundations & soils/ Foundations
Stremaform is a lost formwork for making construction joints in reinforced concrete. It consists of a grid of rods (measuring ø7.5 mm lengthwise and ø4 mm crosswise) welded to an expanded metal mesh. It is 2.4 m long and is available in widths between 6 and 150 cm; special sizes can also be ordered. Installed vertically between two lines of reinforcing, the mesh interrupts the concrete pour in a foundation wall executed in stages. For slabs executed in stages, the mesh is introduced between the upper and lower reinforcing. It can also be used to make a sealed footing between a slab and a wall. During the pour, the mesh contains the concrete, while a layer of cement slurry passes through it, producing a rough surface that improves the adherence and sealing of the joint.
In addition to the standard model, the following variations are available: with fitted joints for greater strength; with a steel sheet to increase the tightness of the joint, with hoops for installing a PVC gasket; molds for reserves and casts, etc.
Upper and lower reinforcing passes through Stremaform, which is installed between them.
The cement slurry that passes through the mesh creates a highly-adherent surface on the face of the construction joint.
Installation of Stremaform for the pour of a 2 m high slab. Gestesa Tower, Madrid. Arch. Bunch, Arquitectura.
Model with hoops for installing a PVC sealing gasket.
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Products may vary depending on the area of distribution.