Shop Floor Talk  

Go Back   Shop Floor Talk > Welding and Metalworking Forums > Mechanical & Electrical

SFT Search:   
Thread Tools Display Modes
Old 07-26-2021, 03:21 PM
gimpyrobb's Avatar
gimpyrobb gimpyrobb is offline
Elite Member
Join Date: Jul 2012
Location: Cincy Oh
Posts: 2,047
Default concrete questions

So I've been helping an elderly lady in the neighborhood keep her house from deteriorating. She has steps going to her side door that has separated. The gap is about 3/4 to 7/8 but there is still rear connecting the two together. Is there an epoxy I should fill the gap with or do I need to stuff it with mortar? This is her primary entry-exit door and salts it in the winter. She wants it done cheap as she is fighting cancer and doesn't think she'll be around much longer but I'd like to do it right too.
Attached Thumbnails
Click image for larger version

Name:	20210719_164807.jpg
Views:	96
Size:	189.0 KB
ID:	161118   Click image for larger version

Name:	20210719_165242.jpg
Views:	107
Size:	204.4 KB
ID:	161119   Click image for larger version

Name:	20210719_164749.jpg
Views:	97
Size:	190.9 KB
ID:	161120   Click image for larger version

Name:	20210719_164724.jpg
Views:	92
Size:	203.9 KB
ID:	161121  
Reply With Quote
Old 07-26-2021, 04:20 PM
mccutter's Avatar
mccutter mccutter is offline
Post Fiend
Join Date: Mar 2006
Location: Central Florida
Posts: 9,959

Maybe some left over thinset from a tile job? It has adhesivey properties. Glop it into the crack with a paint stick?

TA Arcmaster 185 w/tig/stick kit
MillerMatic 252 w/3rd gen 30A
MM140 w/o AS, w/CO2
Hobart (Miller) 625 plasma
Hobart 250ci plasma
Victor O/A (always ready, but bored)
TA 95 lunchbox w/tig
45ACP Black Talons for those stubborn jobs...
Reply With Quote
Old 07-26-2021, 08:13 PM
Windy_Acres's Avatar
Windy_Acres Windy_Acres is offline
Chairman of the Headboard
Join Date: Jun 2012
Location: Northwest Illinois,.. the land of Fat Greasy Pancakes
Posts: 6,149

If I understand the images correctly, the ground under the stairs is likely sinking over time, pulling the stair case away from the landing ?

If this is the case, epoxy or any other sticky substance is not the fix. Jacking up the stairs, and getting them back to where they belong, is the solution.

Thinking you really dont have a repair there other than keeping the crack closed so a toe or keys dont fall into it, and that can be done with a myriad of products.,..

Are you cutting out all the old stuff and replacing it ? If you are, something that is not rock hard would be the correct filler. Id like put caulk backing in there and fill it up with PL concrete crack caulk, it will move with the assembly, and do nothing structural.

Keep up the good work...
Whiskey bottles, and brand new cars, Oak tree you're in my way....
Reply With Quote
Old 07-26-2021, 08:40 PM
greywynd's Avatar
greywynd greywynd is offline
I can dig it
Join Date: Dec 2005
Location: Wainwright, Alberta
Posts: 5,818

There are concrete epoxies used for setting rebar in holes drilled in concrete.

The link shows some different options.

As Windy said though, things are moving. Eventually gravity will win. I would consider either adding posts under it, or perhaps brackets that fasten to the house and/or porch that still allow some movement.

My guess is the real issue is the ground around the house is slowly settling, and there was likely no proper footing for the base of the stairs to carry the load.

Sent from my iPhone using Tapatalk
Reply With Quote
Old 07-26-2021, 10:24 PM
slip knot slip knot is offline
Senior Member
Join Date: Jul 2015
Location: Texas gulf coast
Posts: 734

Backer rod and sikaflex would be my choice. Fill the gap with the backer about 1/2inch or so down then top with the sika product. it will have some give so it wont pop out with movement.
Reply With Quote
Old 07-27-2021, 03:03 PM
gimpyrobb's Avatar
gimpyrobb gimpyrobb is offline
Elite Member
Join Date: Jul 2012
Location: Cincy Oh
Posts: 2,047

Yes the stairs are moving, not enough to tear down and rebuild. I was worried about water getting in, freezing and cracking whats there. A buddy mentioned it isn't a small enough gap to worry about. He recommended the Sika too. I was wondering if I should fill the gap with concrete, but its been like this for a decade, it will last another 10. If not, it will be someone else's problem.

I appreciate the input gang.
Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Web Search:

All times are GMT -5. The time now is 03:21 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.