If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)

Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie

Hi there,
There is an issue with role permissions that is being worked on at the moment.
If you are having trouble with access or permissions on regional forums please post here to get access: https://www.boards.ie/discussion/2058365403/you-do-not-have-permission-for-that#latest

Laying Limestone patio slabs on existing concrete

BrokenArrows · 2021-03-15 11:44:03

Im looking for someone at the moment to lay 28m2 of limestone patio on an existing concrete slab. One guy has some back with a quote but is suggesting to use a dry mix of 10:1 ratio to lay the slabs on. I cant find much online about this being a good idea. Most recommendations is to lay the slabs on a wet mix of 4:1 or 5:1…

15-03-2021 11:44am

#1

BrokenArrows

Registered Users, Registered Users 2 Posts: 7,501 ✭✭✭

Join Date: February 2005

Posts: 6935

Im looking for someone at the moment to lay 28m2 of limestone patio on an existing concrete slab.

One guy has some back with a quote but is suggesting to use a dry mix of 10:1 ratio to lay the slabs on.

I cant find much online about this being a good idea. Most recommendations is to lay the slabs on a wet mix of 4:1 or 5:1 and to prime the back of the slabs.

1. Is a dry mix a viable option?
2. With a wet mix does both the concrete base and the limestone slab need to be primed?

Edit. Just spoke to the guy and that was a typo. He would use a 6:1 not 10:1

0