What to use to seal hole in concrete wall

[Cat_Driver]

Here's some of the best stuff on the planet . They use this to join tilt up buildings.

Dow Corningｮ Contractors Concrete Sealant - Dow Corning

Also

Ames' Blue Max Liquid Rubber

Wet Leaky Basement Waterproofing Contractors by Aquaseal Basement Waterproofing Contractors - YouTube

 

[sdkubota]

The hydraulic cement would work and the pipe may experince slight compression but will not be damaged. Like previously said...work fast, you will have a minute before it is hard. If you want to overkill and can hollow out a little soil behind the wall, shove some dry bentonite around the area outside the basement then seal with concrete.

 

[sdkubota]

Precast building sections are joined with bolts...the sealant is for sealing the joints against water.

 

[pacerron]

If you investigate the hole your mom's water pipe is coming through a little more you will probably find that when the wall was poured a piece of rigid plastic pipe was put there to form the hole. Hydraulic cement will not give you a seal and could damage the water line pipe.

I have a number of these in my basement for well water coming in and water and electric going to a couple barns. Clear silicone works well if you clean out the old stuff first and put it in in layers. 6" of silicone all at once will not set up well.
As was said before, the real fix is on the outside of the wall but you might get lucky by trying from the inside first.

 

[JohninCT]

Something like this would probably be best

http://www.flexicraft.com/PipeSeals/?gclid=CLGqre_0_rECFYao4AodpSwAJQ

I have used marine epoxy putty successfully to seal a small foundation penetration.

 

[sdkubota]

There is a product and procedure done for manholes and concrete structures placed below the water table. They drill a small hole, insert a tube, and inject a bentonite type slurry around the area that is leaking. It will seal everything up unless it drys up and later re-wetted. Any concrete manhole manufacture would have names of companies that do this and with a little ingenuity, could be done by a homeowner with a concrete drill.