Outdoor Kitchen, Bluestone Countertop, and Mortar
#1
07-09-20, 01:49 PM
Outdoor Kitchen, Bluestone Countertop, and Mortar
I have built two houses from footing to ridge cap and everything in between, but I've met my match in trying to get mortar to stick or hang in the joints between the slabs of bluestone I used for countertops on my outdoor kitchen. The slabs are 2' thick and span two block walls faced with fieldstone. This project is done excepting the mortar that I just cannot get to stay in place between the countertop pieces - proof and reminder that a mason, I ain't! Help!
#2
07-09-20, 03:20 PM
Group Moderator
Is this for attaching the stone to your base or are you trying to grout the joint between stones?
Are the stones moving and cracking & breaking the mortar you're using or is it just not sticking?
Are you using a bonding agent painted on the stone?
Is your mortar/thinset/grout just plain portland cement based or does it also have a modifier in the mix?
Are the stones moving and cracking & breaking the mortar you're using or is it just not sticking?
Are you using a bonding agent painted on the stone?
Is your mortar/thinset/grout just plain portland cement based or does it also have a modifier in the mix?
#3
07-09-20, 03:36 PM
Member
trying to get mortar to stick or hang in the joints between the slabs
#4
07-10-20, 04:38 AM
The stones are set, and mortar was used for that. My problem is filing the gap between the stones. I am going to assume that the stones are not moving because footings and a slab were poured as the bases for this whole project. I have not used any bonding agents. I also have not used grout, as it seems I will have the same challenge in getting it to stay in the joint long enough to set. Given the size of the stones and the scale of the area, the joint is about 1/2", also presenting a challenge.
#6
07-14-20, 06:01 AM
I hope a picture is worth a thousand words. The gap on the right is unfilled, and the gap on the right was filled when I set the stone, but it has cracking and is separating.
