Japanese Rebars

[BlastResistant]

Anybody know where I can find information on Japanese reinforcing steel standards. I need to know what grade of reinforcing steel was used in 1988. I'm trying to do a load rating for a bridge that was built in 1988 with no as-built information. Couldn't find much info on Google.

Thanks in advance.

 

[kslee1000]

I believe the Japanese has an institution similar to ACI, the two work closely in certain aspects of concrete design, have you contacted ACI?