I recently removed several poured concrete slabs from around my pool. I didn't remove ALL of the concrete because a lot of it is still in great shape and didn't need replacing. the ones I removed though were cracked, uneven, posed a toe-stubbing hazard and were unsightly. I am currently in the process of grading the soil after which which I will tamp, lay down several inches of gravel and finally tamp again. I'm hoping this will provide adequate drainage and support for exceptional longevity.
My confusion is about the joint type I should be using. I've been reading a lot about different joint types, and the more I read the more indecisive I get.
Expansion joints I understand are to be used between poured slabs and anything that is immovable such as the footings to a house, a retaining wall, or in this case the pool.
Control joints are regularly spaced joints that cause the concrete to crack at that joint as the concrete contracts during the curing process instead of cracking randomly throughout the slab.
My questions are:
- What type of joint should be installed perpendicular to the edge of the pool out to the edge of the form (circled in blue on diagram)?
- What type of joint should be installed where the new concrete meets the old (circled in red on the diagram)?
- What type of joint should be installed at the corner of the steps (circled in green on the diagram)?
My gut feeling is that all of these should be control joints, but I just want to make sure before proceeding.
Some follow up questions:
- what are people's opinion of Zip-Strip or similar materials?
- What are people's opinion of this product: http://www.deckoseal.com/02/07/deck-...control-joint/
I'm having a concrete truck come on Saturday and would like to pick up the material either tomorrow or Friday (7/21/16 or 7/22/16) so the sooner you can get back to me the more awesome I'll think you are Thanks in advance for the help!