fill holes in foundation

[Chuck Beland]

Guys, we had the old oil tank in our basement taken out & according to them the fill pipes must be taken out also. So they took them out & put a tad bit of expanding foam inside. I want to fill them with either concrete or something similar.

What is the best thing to use & how do I do it? I really don't want to get a 50lb bag of cement to fill 2 small 3" holes.

Thanks

[Bob Gibson]

I'd use hydraulic cement. It will be waterproof.

You can get it in small buckets.

[Bill Arnold]

We've used concrete patch that comes in 1qt or maybe a 1liter bottle from the borg. It's made for small concrete patches.

[Vaughn McMillan]

The concrete patch stuff from the Borg should work fine, Chuck. Out of curiosity, is there a problem with the expanding foam? I'd think it's as good of or better seal than a concrete patch.

[Al killian]

hydraulic cement works great for small patches like that.

[Jim DeLaney]

Another vote for the hydraulic cement. Expands a bit as it dries, and makes a waterproof seal that'll last somewhere near forever. Gotta work fairly quickly with it, though - it begins to harden after only a few minutes.

[Brent Dowell]

I used some of that hydraulic cement to patch some cracks in a pre-cast concrete irrigation tank last year. Worked great!

It comes in little buckets, so no worries about a 50# bag.

(To be honest, the 'pre-cast irrigation tank' is something that most folks have buried underground and use for fluids other than water. Just another one of the 'creative' solutions the previous owners installed here)

[Chuck Beland]

Vaughn,
They only put in about 2" of foam just to keep out small insects & the foundation is about 8" thick.

Thanks, I'll go get some of the hydraulic cement.