Return to the Gardening with Stone Forum | Post a Follow-Up

Concrete dust between flagstone for stability?

Posted by peel z6 CT (My Page) on
Mon, Aug 1, 05 at 10:15

I don't know if I heard this correctly, but I thought someone had told me a long time ago that you can brush concrete dust (or maybe a mixture of concrete with sand) into the spaces between flagstone and wet it down to give it a little bit of stability when dry laying stones. Is this possible?

Follow-Up Postings:

RE: Concrete dust between flagstone for stability?

The stability of a stone installation comes from what is UNDER them, not between them.

If the stones shift, the sand/cement mix cracks and falls apart. If frost gets into the cracks, the mix crumbles and falls apart ...

Laying them on a properly prepared bed of gravel and sand, compacted before the stones hit, then brushing plain sand into the cracks gives the area the best chance of surviving winters.

RE: Concrete dust between flagstone for stability?

I didn't pose the question, but thanks, lazygardens. I'm laying a path with scrap granite from a countertop place, and I was thinking about concrete or mortar, mainly because of dreaded bermuda grass. You were a big help to me!

RE: Concrete dust between flagstone for stability?

Do a search for Envirobond or organic binder (stay away from polamer) there are plenty of products that will bind the joints - but as Lazygardens states the base prep is the
main priority

 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!

Return to the Gardening with Stone Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.

Learn more about in-text links on this page here