×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

*
*
*
*

Thanks. We have received your request and will respond promptly.

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

ASTM C1492 Concrete Roof Tiles

thread177-366103

ASTM C1492 Concrete Roof Tiles

ASTM C1492 Concrete Roof Tiles

(OP)
I need to perform some flexural testing that is in conformance with the standard. I looked at buying a machine, but it is out of my budget so I plan to build. It does not appear to be that complex. However, looking at some of the machines made for this purpose - they do not seem to conform to the standard. Maybe they conform to a variation for a different country. The main issue is allowing all 3 supports to rotate in the transverse and longitudinal direction. I understand the reason for it. Does anyone have any experience with these test machines and how they are designed to accomplish this? Maybe you can describe how this is done or attach a picture?

RE: ASTM C1492 Concrete Roof Tiles

Such machines are designed using a ball-bearing or hardened steel ball to accomplish the rotation. Keep in mind that the longitudinal and transverse rotation are only necessary for profiled roof tiles such as the Spanish S or barrel tile. Flat concrete tile can be tested on a machine that only has rotation on the supports perpendicular to the long axis of the tile.

The bearing plate has a hemispherical hole machined into it to accept the ball. The profile blocks sit direction on the bearing plate (on top of the lower plates, below the upper plate).

Pay attention to the loading rate of the machine. This makes a difference in the test. Check out each of the standards referenced in C1492 as they give specific requirements for the loading apparatus, separate from the flexural loading jig.

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

Resources

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