BGW Double-wall spacer = DWAH

The double wall spacer (DWAH) is an embedded part installed during the production of double walls. This component significantly determines the wall thickness and the concrete cover of the double wall. The double wall spacer (DWAH) consists of U-bars bent from 10 mm diameter ribbed reinforcing steel. The legs of the U-bar are secured at the end by a welded strut to prevent the U-bar from bending open. Plastic caps approximately 30 mm long are placed on the base legs of the U-bar. An insertion sleeve for the base is welded into the center of the bar.

The height of the DWAH corresponds to the wall thickness minus the concrete cover of the first wall leaf to be cast and can be supplied in any desired concrete cover thickness. Such a double wall spacer—if not additionally reinforced with stirrups—supports approximately 1,000 kg with a 20 mm concrete cover. In this case, the concrete fails on the side opposite the base.

The M16 thread in the double wall spacer, to which the base was screwed, can be used to attach push-pull props during double wall installation. The thread is protected by a plastic cap.

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