huangyhg

is there an overall guide to spec'ing structural adhesives
i am looking for up-to-date articles or any other publications written by third parties (not the adhesive manufacturers) on how to choose and specify structural adhesives for use in attaching dowels and anchors to concrete and masonry.
i have current catalogs and manufacturer's data for many types of adhesives, but would like to hear about the qualities, relative strengths and weaknesses of each type from disinterested third parties. my chemistry is very rusty but would also be interested in learning more about the molecules now used in structural adhesives.
third party data i have on hand at present on this topic is outdated and limited. a lot has changed in the last ten years.
have a project coming up that is going to require an overhead attachment to concrete with a high demand on the anchors. would also generally like to be more knowledgable when specifying and reviewing installation of these adhesives. hope to avoid repeat of problems that occurred in boston.
any references or links highly appreciated.
this comes from masterspec:
epoxy bonding adhesive: astm c 881, two-component epoxy resin, capable of humid curing and bonding to damp surfaces, of class suitable for application temperature and of grade to suit requirements
i think the icc evaluations would be a good reference and to help substantiate your calcs.
i would suggest that you look at covert undercut anchors. they have a extensive icbo report that i believe you can download.
thanks you for the links and suggestions. they aren't quite what i was seeking, though. perhaps it does not exist. i was hoping that an adhesives industry expert or very knowledgeable engineer who uses adhesives a lot has written something that would provide an overall guide on how to choose anchoring systems, not oriented to any one specific system or manufacturer. thanks again anyway.
epoxybot provided a bunch of information on big dig collapse... perhaps he's lurking.
dik
check out the last few issues of aci's "structural journal." they recently had an article on epoxy anchors with all kinds of technical info.
check aci503r-93 and aci503.1-92.
i have never heard of anyone digging any further in to qualitative or side by side comparisons of adhesives by a third party. hilti seems to be "the" concrete anchor system of choice of engineers i have worked with. what were they using in bean town ?
maybe better late than never.
mind you, i cannot recommend the use of epoxy for overhead work. having said that, if you want a more stringent evaluation than icc; then a perusal of the caltrans qpl for anchors grouted with epoxy is a good 3rd party read.
cartridge epoxies (10-23)
here's a comprehensive report from caltrans regarding their testing.
seismic, creep, and tensile testing of various epoxy bonded rebar products in hardened concrete

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