I want to connect between reinforced concrete beam and precast high strength plate at tension zone by using adhesive material rather than epoxy. So, would you kindly help me about that?
If epoxide materials don't allowable, the glues containing unsaturated polyesters gives a good adhesive connection of reinforced concrete beam and precast high strength plate
Thank you very much for your reply.
Is this glue better than epoxy, and what the commericial name of it?
Best regards.
Polyesters may fail if the concrete is exposed to the weather. A good epoxy will last for over 40 years. NSW road authority (then DMR now RMS) applied an epoxy bonded steel plate to carry supplemental post tensioning to a bridge in the early 1970's. To my knowledge it has not failed (though people are a bit nervous). The plates are in shear against the concrete.
Dear Gordon Chirgwin
Thank you very much for your reply.
I want to bond this plate to reinforced concrete beam at tension zone, so is epoxy still good for using in coconnect? What commercial type is better?
Best regards.
You should talk to the major suppliers of structural epoxy resins to determine the best one for your purpose. It depends on many factors including the temperature range, the application technique and the service conditions..
Taghreed Kh Alrekabi .... Good question… Please check this reference below.. hope it will be helpful for you…
Characterization of materials used in field-cast precast concrete connections :
https://www.pci.org/PCI/Publications/PCI_Journal/Issues/2017/November-December/Characterization_of_materials_used_in_field-cast_precast_concrete_connections.aspx
Also...
Dry joint between precast concrete elements :
https://run.unl.pt/bitstream/10362/20162/1/Junior_2016.pdf
Regards…
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