Jump to content

What are these, and are they ok?


Recommended Posts

These brick sized concrete blocks were used to support all the rebar in the bottom of the fottings in this prepour inspection. They were placed approx every 6 to 10 feet with the rebars re3sting on top of theme in most places.

Is this what is refered to as a "dobie" .



Download Attachment: icon_photo.gif CMU.JPG

158.37 KB

Link to comment
Share on other sites

  • 2 weeks later...

Dobie, Yes, The dobie is used to provide the proper clearance between the edge of the form (This case the soil is the form) and reinforcement, so that the placed concrete will cover the reinforcement completely. Most of the time there is not enough dobie placed, so that the belly of the rebar will not have the design clearance. Rule of Thumb for clearance is double the size of concrete aggregate add ½â€

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...