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.
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.
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.
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.
