new patio pour - now I've got a leaky basement in same area

My old slab had about a 2ft void beneath. They backfilled and compacted with rock before pouring the new patio. I had some minor leaks. I was hoping excavation, regrading and new pour would resolve these issues. IT HAS MADE THEM WORSE.

I checked the pitch with a level. The slabs are fine and the water sheets off them and away from the foundation. My gutters are fine and I had a downspout that used to drain onto the old patio buried under the new slab. It is draining well.

I backfilled with more loose dirt around the edges thinking the water had some surface tension and working its way off the edge and back under the slabs. My other thought is the downspout, but I see water draining thru this at point of discharge. My only other thought is that the new patio is several slabs (instead of one gigantic one) and it has cedar joints. Could water be infaltrating these joints? I can't imagine that much water working its way thru the joints. When it rains heavy, it looks like a river has opened up thru the wall.

I had a waterproofing company inspect these cracks prior to flatwork. They said they suspected a void and a good pour should cure my problems. ~sigh~ It's worse now AND I don't know how to correct it without disturbing my newly poured patio. My house is shaped like and L and the patio is at the intersection of that L, so it is bordered on 2 sides by foundatin/garage footing.

The water is actually leaking in thru a crack in the wall and streaming down.

Suggestions?

 

bump^^^^^^^^^^^

 

Is your basement block or concrete? How wide are the cracks at the widest point? If the cracks are wide enough you can fill the larger area with hydraulic cement and then drylock the whole wall. I have had great success using Drylock to coat walls with minor leaks.

 

poured concrete. The cracks are behind 2x4s, drywall and some kinda stucco. We suspect the previous owners knew something of this trouble, but it has not bothered us for nearly 10 yrs. We have drain tile, but not on this side.

 

I had a waterproofing contractor inspect and he said the leak is at an area called an I-beam pocket. The steel I-beam that my floor joists rest upon is notched into the foundation and the patch is leaking. He said they will not warranty this fix, but I could attempt myself with a masonary bit and some epoxy stuff I could inject into the holes that would expand and seal it. That sounds like it would work, but I still have the problem with the cedar joints. Water is seeping THRU my patio. I guess I am left only with the option of applying self-leveling caulk to these joints. ~sigh~

Sooooo...can anyone reccommend a brand and/or color that would look aesthetically pleasing on a NEW POUR?