new concrete over old?

Reply

  #1  
Old 06-09-06, 01:47 PM
S
Member
Thread Starter
Join Date: Jun 2006
Posts: 2
Received 0 Votes on 0 Posts
new concrete over old?

My old driveway is not level and I never use it. It runs next to the side of the house and I'm thinking about pouring a concrete terraced patio (5 "steps," each "step" about 9' x 9') over it without removing the old concrete. Can I do this? Do need to brush the old concrete with some sort of bonding agent? Do I need to lay a sand and gravel base?
 
  #2  
Old 06-09-06, 07:03 PM
T
Member
Join Date: Mar 2006
Location: Austin, TX
Posts: 1,405
Received 0 Votes on 0 Posts
You can do it in 2 different ways.

You can float your new concrete over the old, which is what you would want to do if the driveway is cracked (non-moving cracks), in which case you would use a bond breaker between the slabs.


Or, you can bond the new to the old if it is in good shape. Clean it well, apply a bonding agent to the surface and proceed.
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description: