Posted on 07/17/2006 3:34:43 PM PDT by NonValueAdded
According to a "How Epoxy Works" illustration at the link above, there was no pre-mixing of the epoxy. Instead, the "resin and hardener [are] applied separately into the drilled hole" and "screwing the anchor bolt into the hole mixes [the] components." The graphic lists the "1998 State Inspector General Report" as the source, graphic prepared by David Butler of the Globe Staff.
Can you all not see a half-dozen ways that is a recipe for disaster? A quick google search about epoxy has most application instructions starting with a mix of the ingredients, either separately or throught the delivery device. But squirt the stuff in separately and rely on turning the bolt to ensure a good mix???
(Excerpt) Read more at boston.com ...
Engineers, is this application method as whacked out as I think it is?
Sorry about the title typo.
It could work if you were hanging a flowerpot.
what do you think about this?
Maybe the guy who wrote the report is confused.
From what I read, the bigger problem was adequately cleaning the holes and appying adequate adhesive.
I am not an engineer, but why do people think think this might not be acceptable out of hand?
I would ask how much clearance is involved between the sides of the hole and the bolt, for starters. Obviously (to this non-engineer) if the tolerances are very small, it is likely that the majority of the epoxy might just squirt out the top without mixing in any kind of appropriate quantities.
If it is a pretty sloppy fit, it sound reasonable to me on the surface.
I'm not an engineer, but I did stay at a Holiday Inn Express last night.
Here's an article from Engineering News Record web site from the AP.
ENR will be the best source for engineering analysis and technical discussion of the failure mechanisms.
ENR is the voice of the American engineering and construction industry.construction
Here is a link to Engineering News Record for those following the story.
ENR will tell the story unabridged by the pressies
http://enr.ecnext.com/free-scripts/comsite2.pl?page=enr_document&article=netrar060712a
I'm not an engineer, but I did sleep at a Holiday Inn last night.
And that sounds TOTALLY whacked.
Here's an example from Mom's kitchen, of all places. She used to make a "marble cake." She would pour some chocolate cake batter into a pan and then carefully pour on some vanilla cake batter. She then took a knife, pierced the batter (drilled the hole), then pulled the knife around in a design.
Of course, the batter did not combine into one batter.
Ah! You got me and I posted before reading down the thread!
LOL -- you gotta be fast off the draw here, amigo :)
Kitty Dukakis often successfully mixed liquids in this fashion.
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