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RE: Epoxy Anchor

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My advice would be:
1. Do as DSA asks.
2. Write letter to DSA & your client stating why you object to this method.
3. If there is any problems, refer to letter in No. 2.
4. Get the job done and go to the next one.

Bill Allen

-----Original Message-----
From: James Lin [mailto:se3949(--nospam--at)]
Sent: Thursday, September 17, 1998 1:04 PM
To: seaint(--nospam--at)
Subject: Epoxy Anchor

Project: Retrofit the existing concrete building (school job)
Location: Southern California
DSA correction: Use drilled and grout anchor bolts (instead of Hilti
Hit HY150) to fasten new steel ledgers to existing concrete walls
(Since raised temperature during fire will reduce the bond strength of
epoxy anchors)

We still like to use epoxy anchors for the following reasons
1. better quality control (for installation) over drilled and grout
2. less chance to cut the existing rebars

Any opinion/suggestion to response to DSA (Department of State
Architect of California)?

Thanks in advance 

James Lin, S.E.
I. D. S.


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