"AndrewV" wrote


The easier way is to drill holes with a rented rotary hammer and fill them
with an expanding agent like www.crackamite.com I used something similar
on a slab a few yrs ago and it worked great. you can Google for other
varieties, should be available @ a local industrial supply outfit.

YMMV

Andrew

Very interesting stuff. Drilling the two inch holes would be a chore,
though.

Steve