Need to patch the Basement wall. It's a section roughly 9 feet long by 2 to almost 3 feet wide. Thickness varies from an inch to almost 3 1/2 inch in depth. That section of the Basement wall caved in during a heavy rainstorm 3 days ago.

roughly how much cement is that gonna take?

That will do you no good at all. Cement is an ingredient of concrete, and needs to be fairly thick with reinforcement in it.

you need a lot more than a patch

Dang that stinks. Make sure the rest of the wall is in good shape too.

You'll need to expand the area. To make the example easy let's say....10'x 4'x 6" = 3/4 yd. + a bonding agent + reinforcement + sealer.

Get a pro in that area for that as there might be other hidden issues that caused the crack. It can get ugly quick.

and many concrete companies require a 3 yd minimum or so to make it worth their time.

sounds like you need a pro. I hope you have insurance

9' x 3' x 1/4'(3")= a little less than 3 Cft = 1/9 Cyd You'd be way ahead to by Ready Mix/Quickrete sacks, IF you know what your doing.

1"-3 1/2" thick on a wall? man, you gots more problems than not knowing how to do the math, call a concrete professional and maybe an engineer.
1" thick is plaster, 3 1/2" is too thin for anything but lightly loaded slab, below grade wall should be minimum 8" reinforced concrete
Or is this an old band-aid "patch" over a crack that just fell off?
Whatever it is you need on site expertise. house jack? excavate for french drain? hydraulic cement to seal? what in heck caused the failure?

Based on all your other questions in the past it sounds like you need a new house.

True story there Bob !!

1/3 cubic yard should do it.

What was behind the concrete? Sounds more like it was more like them said, used as plaster. Water might have caused it. Concrete absorbs water in minute amounts all its life. It's enemy number one of concrete as it swells and cracks. Your rainstorm may have caused that to happen. I hope that concrete wasn't just smeared over the dirt once your basement was dug....

*Tjm..stupid autocorrect..

We're going to need to see pictures of this project.
I don't thing you're using the right material or concepts to fix the problem.

It sounds like you might get concrete from a mixer truck to smear on your wall. Don't do that.

Well, let's see....

House built , at least the first part, sometime around 1870. It had a round dug well right in the front of the house, about 10 feet from the house. Found out about that, when we had the underground drainage installed around the house. Water roared out of that old dug well, when the excavator hit it with his backhoe. Water was 3 FEET deep in the outside drain tile trench on all 4 sides of the house for almost 4 days !. Sometime around the turn of the 20th Century, they added on to the house. Front part of the house has the regular shingle roof. But, for whatever reason, they went CHEAP!! and put a low slope roof on the back part of the house. A FLAT ROOF!!

Apparently, when they dug the foundation for the addition of house, they decided to abandon the old dug well in the front of the house; and they drilled a new well. That is the well we still use. It's good water. Only problem with that well, is that they drilled it in the dug out section after they poured the foundation on the expanded back section of the house. Then they built the new section of the house over that. Yes, that's right! The well is in the Basement! Why they did that, I will never know !


The original heating system for the house, is Hot water. The old Radiators are still in use on the 1st floor. I have no idea what they used for heat on the 2nd floor way back then. Heating contractor said the piping is around 100 years old. There is a date on the Radiators . It says 1920. The old Boiler was Coal fired. Prior owner burned 11 to 12 tons of Coal a year. They still had the old coal bins in the house when we bought it. They switched the house over to a gas fired Boiler sometime in the early 1960's. The heating system for the 2nd floor, is a separate unit. Forced hot air. Installed sometime in the 1960's.


Now, this is where it gets strange.....

When they installed the 2nd floor heating system, they ran all the heat ductwork through the Attic. This would not be so bad, except that the heat ducts that run on the flat roof side of the house, are just a few inches from the roof where it meets the outside wall. No matter how much ventilation , pipe wrap or insulation is blown up there, the attic heats up , and the ice dams build up. Only way to stop that, is to keep the heat turned down low on the 2nd floor.


Gutters were taken off the flat roof to keep the ice dams from building up. That helps with the ice dam problem, but, no Gutters created a water issue. I had a 2nd drainage system installed just a couple of feet below ground . That really did not help much. From what I was told, the big problem , is the heating system. If that forced hot air gas furnace were disconnected, and a through the wall gas furnace installed that would eliminate the Attic being heated up from the Ductwork. And, the Gutters could be reinstalled.

Double check your homeowners policy. Sometimes house fires just happen...

You only gonna need about a yard and a half. Get a mixer and get to work.

T-111 and call a realtor

The house next door to where I grew up had a well in the basement. My thinking is that it was done that way to avoid freezing issues.