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Re: water proof

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Martin Li wrote:

If you really need waterproof for your retaining wall, I would use XYPEX concrete waterproof ( <>). Also see ICC Report #9907 (

-----Original Message-----
*From:* DA ENGINEERING [mailto:dnae(--nospam--at)]
*Sent:* Monday, November 05, 2007 3:53 PM
*To:* seaint(--nospam--at)
*Subject:* water proof


what the best way to water proof retaining wall and footing close to the beach

I designed the 12" retaining wall with 24" thick footing also acting as slab

no heel for retaining wall

water will up rise behind the wall

the contractor want to pour 6" mud slab over the water proof material

then pour the  24"  footing

I did not like the idea

any one with idea let me know


Dave A.

Xypex is what I use also (wall/footing/slab).
Chuck Utzman, PE

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