Rebar needed to fill trench?

Reply

  #1  
Old 05-17-06, 12:14 PM
B
Member
Thread Starter
Join Date: Jan 2006
Location: phoenix, az
Posts: 23
Received 0 Votes on 0 Posts
Rebar needed to fill trench?

Using a concrete saw, I cut a 2'x6' trench in my concrete slab to replace the bathroom drains. Do I need to use rebar to when I pour the new concrete to secure it to the old?
 
Sponsored Links
  #2  
Old 05-17-06, 01:06 PM
P
Member
Join Date: Feb 2005
Location: USA
Posts: 1,396
Received 0 Votes on 0 Posts
Not really, provided the fill in the trench that you're going to pour into is well compacted. However, it never hurts to err on the side of caution. A few pieces of bar dowelled into the sides of the old slab couldn't hurt anything.

Pecos
 
  #3  
Old 05-18-06, 03:16 AM
B
Member
Join Date: Feb 2006
Location: Michigan
Posts: 399
Received 0 Votes on 0 Posts
And you probably had to excavate beneath the removed concrete for the plumbing. It's usually quite hard to compact this area sufficiently before you replace the concrete. Doweling should help the concrete bridge should you get settling of fill below newly poured floor.

bs5
 
  #4  
Old 05-24-06, 02:08 PM
B
Member
Thread Starter
Join Date: Jan 2006
Location: phoenix, az
Posts: 23
Received 0 Votes on 0 Posts
The trench is 2' x 6'. How long should the rebar pins be and what spacing should I use? Thanks for your input!
 
  #5  
Old 05-25-06, 02:51 AM
P
Member
Join Date: Feb 2005
Location: USA
Posts: 1,396
Received 0 Votes on 0 Posts
Length... short enough to be placed into the drilled hole and pounded in, but long enough to stick out a few inches.

Spacing...every couple of feet, and staggered so the ones on one side fall between the ones on the other side. 3 per side would easily do it. Good luck.

Pecos
 
Reply

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description: