Return to the Home Repair Forum | Post a Follow-Up

How to repair large hole in concrete wall

Posted by keazin (My Page) on
Fri, Sep 21, 07 at 15:47

We have a concrete wall in our back yard where water damage has caused a large piece of the concrete to break away. The hole is about the size of a frisbee. I want to try and repair it myself. Any info on how to repair it is much appreciated. Thanks in advance!

Follow-Up Postings:

RE: How to repair large hole in concrete wall

if this is a retaining wall, you need to fix the problem ont he other side of the wall first. if this is just a wall, above ground on both sides, you can mix up some concrete patch and fill the hole back in. for that size vertical hole, you may need to brace a board over the hole to hold in the patch until it dries.

RE: How to repair large hole in concrete wall

You should also consider using hydraulic cement, which sets up quickly and is meant to be used in wet situations where regular patching materials might be compromised as they set.

RE: How to repair large hole in concrete wall

Hydraulic cement expands slightly as it sets.
It is not a good idea for a large patch since it can lead to cracking of the other material.
The speed of set is to prevent it from washing away before it can set (it can even make a set under water).
If the wall is not holding anything I would fill it in with some bricks, then use mortar to finish.
If it is a retaining wall you can still brick it up, but you must provide a mechanical lock for the patch to prevent it from being pushed out.

RE: How to repair large hole in concrete wall

Or you could just shove some expanded metal in, support or attach it somehow, and smear on some morter or patch-crete.

 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 Home Repair 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