Hi everyone. If you were to lay a new driveway that would join onto an existing driveway what join would be best recommended to help with shrinkage/expansion of the new slab and transfer load when a car drove over it? Any answers would be much appreciated.
Would it work if i thickened the edge up say 200mm x 200m where the new slab meets the old, to make it a little bit more difficult the new slab is angled down on a slight rounded slope say 10 degrees towards the junction of old concrete.
Im scared of the new slab cracking on the edge where the cars would drive over this?
I would use 1/2" x 18" smooth dowels, drill 9/16" holes in the existing slab at about 18" o.c., grease the end that slides into existing. Use a fiber pull top expansion joint, after pour pull the top and then caulk with Vulkem or similar.
Thank you for your reply. Would the smooth dowels work if the new slab was hitting the existing on a different gradient, would i have to bend the dowels to make sure they would set in the correct portion of the new slab?
Contractor Talk - Professional Construction and Remodeling Forum
A forum community dedicated to professional construction and remodeling contractors. Come join the discussion about the industry, trades, safety, projects, finishing, tools, machinery, styles, scales, reviews, accessories, classifieds, and more!