Brick over concrete

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Old 02-08-01, 05:29 PM
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We would like to make a brick curb on top of our cement driveway. It will be between aluminum supports for a carport awning. We are trying to direct the flow of rainwater from a neighbors walkway. What is the best way to get a watertight seal between the brick and the cement beneath it and between the brick and the aluminum posts (they are square)?
 
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Old 02-08-01, 06:47 PM
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Both brick and mortar a porous. In addition, freezing weather may cause mortar bonds to fail. You might try adding a 4-6" wide concrete curb, then adding brick for appearance.

The form is a simple four sided box. Place plastic sleeves or foam around the posts. 1 1/2-2" of concrete on either side of the posts is desirable, but the posts should move independently of the concrete.

Roughening the slab and using a bonder or epoxy will increase the bond between new and old concrete. A construction supply will carry the epoxy; bonder also. The epoxy is about $30.00. Bonder is less. Quikcrete 5000 is worthy ready mix. For mixing, placing and curing concrete review http://www.bhglive.com/homeimp/masonry.html

When you pour rap the sides of the form with a hammer to help consolidation.
 
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