×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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!
  • Students Click Here

*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

Jobs

Boston Big Dig Tunnel Collapse 2
3

Boston Big Dig Tunnel Collapse 2

RE: Boston Big Dig Tunnel Collapse 2

The Highway Research Center report quoted is sobering news, especially as it says not only would fast-set epoxy "fail decades before nearing this service life", but that standard-set epoxy would also fail in time.

RE: Boston Big Dig Tunnel Collapse 2

All the testing and information which has come out on the failure due to epoxy creep has come from the Highway Research Center.  I wonder what happened to the Wiss Janney Elstner report.  They were commissioned to investigate, but I have seen nothing of their work reported.  Maybe the grand jury has it.  They have also been appointed to investigate the I35W bridge collapse.

RE: Boston Big Dig Tunnel Collapse 2

It has always been very odd to me that the Power-Fast system has both fast- and not-so-fast set adhesives.

You have to really read the fine print to see the (significant) difference. If I didn't know differently I'd think ALL the PowersFast adhesive is FAST setting.

I guess they figured "PowersStandard" wouldn't sell.

RE: Boston Big Dig Tunnel Collapse 2

It sure won't sell now.

Mike Halloran
Pembroke Pines, FL, USA

RE: Boston Big Dig Tunnel Collapse 2

I think all suppliers of epoxy for construction have two or more set times. I checked and found that locally, Florida, that the fast set out sells the standard set three to one. The ratio of sales last month was 2 to 1 with the mention of heat being a problem. This month it should be closer to 50/50, again due to heat.  

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!


Resources