Slipform Slot Drain

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Slipform Slot Drain

Slipform Slot Drain
Slot drains provide a large capacity carrier drain integral within a section of minimal footprint.

 

This system is a popular choice for the central reserve adjacent to concrete barrier where space is at a premium. It is also popular on highway where there is little longitudinal fall.

 

Surface water accesses the drain via a continuous linear slot.

 

The overall size of the section is directly proportional to the diameter of the carrier drain bore, typically the overall size of the concrete section is twice the diameter of the bore..

 

Extrudakerb have developed a range of slot drain profiles varying from a 150mm to 500mm diameter bore. All slot drain profiles are load tested and certified to provide a D400 loading capability.

 

The bore is created by slipforming over an inflated void former that once initial set is achieved is removed.

 

Outfalls can include silt traps and are constructed using modular formwork, plastic connectors and rising sections so that integrity of the drain is maintained.

 

Typically a 35N air entrained concrete with polypropylene fibres is proposed although higher strength mixes are available if required.

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