- Location
- Dorset
Has anyone managed to make and setup formwork into concrete to leave a drainage channel wth a lip to put a long grating. I have seen it done but cant work out how to approach it.
Concrete Form Work for Drainage Channels
- Thread starter Forum flyer
- Start date
RWG Contracts
Member
- Location
- Samlesbury, Lancashire
You want to form something like that?
Fallowfield
Member
What kind of dimensions? What shape for the channel?
Is this to be poured in situ or are you making up pre formed sections?
Forming the lip is the easy bit, just a bit of 4x2 or whatever size you want suspended from hangers. The channel would be a bit trickier as you'd have to make sure it didn't rise up when you pour the concrete.
Is this to be poured in situ or are you making up pre formed sections?
Forming the lip is the easy bit, just a bit of 4x2 or whatever size you want suspended from hangers. The channel would be a bit trickier as you'd have to make sure it didn't rise up when you pour the concrete.
Lincs Lass
Member
- Location
- north lincs
Could you fasten a 6 inch plastic pipe to a bracket ,use the half round to create the gulley
- Location
- Dorset
Yes similar to that, it would be done in situ across tracks on the farm that have slopes and are washing away all the time. This would be put in to divert the run off and soak away.
Hilly
Member
- Location
- Scottish Borders.
Just use motorway barrier for that.
RWG Contracts
Member
- Location
- Samlesbury, Lancashire
What width at a time? Be a right ballache to be honest
- Location
- Dorset
Yes i admit its a labourious idea but am trying to think of and easy way that will take weight of farm machinery.......
RWG Contracts
Member
- Location
- Samlesbury, Lancashire
Jameshenry
Member
- Location
- Cornwall
I've seen roller screeds shaped to form drainage channels ,
Bit of an extreme example but something shallower/different profile would work
Bit of an extreme example but something shallower/different profile would work
foxbox
Member
- Location
- West Northants
Could you create a shallow sleeping policeman to divert the water without the need for the drain? A drain will block regularly and need more maintenance than good contouring will. Might not work if the slope is too steep or the contours are wrong though
- Location
- Near Colchester
Plastic pipe or gutter will float out of concrete.
make something out of wood with a batten nailed either side and oil before installing.
make something out of wood with a batten nailed either side and oil before installing.
Derky
Member
- Location
- Bucks/oxon
We have done this with angle back to back so it looks like channel. Then welded nuts on the bottom edge of the angle and held it together with bolts. Once you have poured it wind off the bolts which eases the angle and you can remove it without damaging the edge on the concrete. We use this to form ventilation channels in grain stores. Takes lots of setting up.
- Location
- Dorset
Fair comment anything that needs to be maintained tends to not be on our farm. I have thought more i could lay a large diameter steel pipe into the concrete using the weight to create a inverted sleeping policeman? Then i only have have to shutter it up as a straight run
foxbox
Member
- Location
- West Northants
We've created some nice gullies around the yard using a shaped former dragged through the concrete as it goes off. They're only about 2 inches deep and about 12 inches wide but on a gentle slope catch and direct water really nicely. I'll take a picture tomorrow if I remember
A1an
Member
Get your hands on some metal motorway crash barrier, lay it flat in the road.
They make great surface drains
foxbox
Member
- Location
- West Northants
Here you go; this gully collects yard water, the one below receives it and filters the straw. Under my feet is a 12 inch road manhole type grate which acts as the overflow receiver for the slats if they get bunged up. If you were to concrete in a slab around 2 feet wide with a gully like this in it would that work instead of a hump? It'd be self cleaning with a clear exit and traffic through it on a regular basis. The gully was formed by laying a flat topped slab, letting it go off a bit then using a shaped timber to drag through and create the profile before finishing with a float. Nothing fancy but it works well.
