Post Bollards for Concrete Installation

Concrete-in post bollards are set into the floor slab, so an impact spreads through the concrete rather than into a handful of bolts.

Available diameters are 76.1, 108 and 159 mm. A post embedded in the slab works as a cantilever anchored through the full thickness of the concrete, which gives resistance a bolt-down version of the same diameter cannot reach.

Why concrete-in wins on resistance

With a bolt-down bollard, the whole impact energy goes into a few anchors and the thin layer of concrete around them. Under a strong enough strike the anchors tear out a piece of the slab and the bollard topples with it. An embedded post transfers the load into a far greater volume of concrete, so the threshold at which the structure gives way lies much higher.

• entries and through-routes with heavy vehicle traffic
• protection of services critical to production continuity
• corners and points with a history of repeat impacts
• external areas and manoeuvring yards

What it demands and what it will not forgive

Installation means breaking out an opening in the slab, setting the post and concreting it — taking part of the zone out of service while the concrete cures. Nor can the bollard be moved later without repairing the floor. This is a solution for locations fixed for years, not for a layout that changes each season.

Choosing the diameter

76.1 mm suits warehouse truck traffic. 108 mm is the usual choice on routes with heavy vehicles. 159 mm is used where the bollard has to stop a van or a lorry — and where the consequence of protection failing is disproportionately expensive.