Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Footings in loose sand

Footings in loose sand

Footings in loose sand

Quick question.  I have a contractor who poured footings for a single story home in fine, loose sand.  The code required minimum standard is 16" X 8".  His are 20"-22" by 5"-6" at the center, 2 1/2" to 4" towards the edges.  He claims that wider is better and they should be thick enough.  I think that the minimum depth should be met or he should consult a professional to analyze.  Who's right?  Also, it's 5 bag mix unreinforced.  Thanks for your responses in advance.

RE: Footings in loose sand

Rebar has to be three inches from bottom of footing then the bars need to be in the bottom 2/3 of thickness to counteract the tension of the footing.Eight inches minimum really need to be 12

RE: Footings in loose sand

He's right that wider is better but thinner is worse! As our friend says you can't get enough cover for your reinforcement with the thickness he has and it does seem too thin. Also in a fine loose sand are you sure the founding strata is OK. See article on my website below.

Carl Bauer

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close