- My Forums
- Tiger Rant
- LSU Recruiting
- SEC Rant
- Saints Talk
- Pelicans Talk
- More Sports Board
- Fantasy Sports
- Golf Board
- Soccer Board
- O-T Lounge
- Tech Board
- Home/Garden Board
- Outdoor Board
- Health/Fitness Board
- Movie/TV Board
- Book Board
- Music Board
- Political Talk
- Money Talk
- Fark Board
- Gaming Board
- Travel Board
- Food/Drink Board
- Ticket Exchange
- TD Help Board
Customize My Forums- View All Forums
- Show Left Links
- Topic Sort Options
- Trending Topics
- Recent Topics
- Active Topics
Started By
Message
Need culvert/catch basin help. 24" culvert into 28" hole (see picture)
Posted on 9/16/14 at 10:28 am
Posted on 9/16/14 at 10:28 am
Got some culverts and a catch basin put in yesterday. The 24" culverts don't fit real snug into the catch basin being that they are 28" holes. The parish said I need to put some sort of foam or mortar repair to make a sort of seal around the culvert. Anyone have experience with this and what's the best route to take? Any help would be appreciated. Thanks
This post was edited on 9/16/14 at 10:29 am
Posted on 9/16/14 at 10:35 am to FleuryNipples
Can't see the pic, blocked at work, but I would not go the foam route.
Posted on 9/16/14 at 10:38 am to Boudreaux35
I agree. Cut a piece of card board roughly the arch of the pipe to hold on the backside to help with waste. Foam will expand and act as a filler.
Posted on 9/16/14 at 10:38 am to FleuryNipples
quote:
put some sort of foam or mortar
Posted on 9/16/14 at 10:43 am to Boudreaux35
Temporarily seal off the outside of the basin at the pipe with gorilla tape and back that with plywood and dirt for reinforcement.
From the inside of the basin fill the gap with closed cell spray foam. wear gloves
Once dry remove the tape and plywood and use fiberglass mortar tape and quick patch to create a durable outer seal around the pipe and then back fill the hole with dirt once dry.
You could also put same tape and mortar on inside if you wish.
As the culvert and basin settle though it is very like that the mortar will crack.
From the inside of the basin fill the gap with closed cell spray foam. wear gloves
Once dry remove the tape and plywood and use fiberglass mortar tape and quick patch to create a durable outer seal around the pipe and then back fill the hole with dirt once dry.
You could also put same tape and mortar on inside if you wish.
As the culvert and basin settle though it is very like that the mortar will crack.
Posted on 9/16/14 at 11:08 am to FleuryNipples
Fill the void with grout (you'll have to get rid of the water temporarily).
3 parts sand/1 part Portland or buy some bagged sand mix (no rocks) at the Supply house.
Mix dry, pack in by hand/trowel, use gloves. Last layer real wet and trowel smooth to seal.
It will take some time and any type of temporary backup you put will reduce the amount that spills out the back.
No style points it doesn't have to be pretty.
3 parts sand/1 part Portland or buy some bagged sand mix (no rocks) at the Supply house.
Mix dry, pack in by hand/trowel, use gloves. Last layer real wet and trowel smooth to seal.
It will take some time and any type of temporary backup you put will reduce the amount that spills out the back.
No style points it doesn't have to be pretty.
Posted on 9/16/14 at 11:24 am to FleuryNipples
FWIW, if you are being inspected, it may have to be water tight connection. "Mortar" is not naturally water tight. You want to look for "non-shrink grout".
Posted on 9/16/14 at 12:21 pm to FleuryNipples
Back it with cardboard or foam and fill gap from the inside with grout. Will need to pump the water out before you do the work.
Posted on 9/16/14 at 3:03 pm to Capital Cajun
Stuff the larger gaps with concrete brick or some sort of solid material, that way you use less grout, and then fill in the voids with non shrink grout. That's how the parish would do it
Posted on 9/16/14 at 3:07 pm to FleuryNipples
if you can't remove the water there is a "chemical cure" grout that you can use. it is more $$$ than "regular" grout.
you can also get by with ram-neck.
most of the utility supply co's sell this stuff: ferguson, contech, ?lcr?
you can also get by with ram-neck.
most of the utility supply co's sell this stuff: ferguson, contech, ?lcr?
Posted on 9/16/14 at 4:08 pm to mack the knife
A piece of plywood, cut to overlap the basin and cut a hole for the culvert to fit. Cut in half and place it to the inside. Use a couple small pieces to join them together. Do the same for the outside, but before installing the top half, mix some concrete (bag of 80lb), pour in the bottom half. The to top, cut a small opening to were you can pour more concrete and join that to the bottom half. Fill the rest up with concrete. Back fill with dirt and it's done. The plywood will rot out over time.
Posted on 9/16/14 at 4:42 pm to fishfighter
Get a few cans of flex seal
Popular
Back to top
Follow TigerDroppings for LSU Football News