Does ACQ affect design values?
Does ACQ affect design values?
(OP)
Does ACQ-treatment of 2x10 & 2x12 lumber, require design value adjustment?
More specifically, after applying the NDS Table 4B Adjustment Factors, Cm for wet service conditions, to SYP #2 & #1 lumber, must design values be further adjusted for ACQ-Treatment?
Thank you ...
More specifically, after applying the NDS Table 4B Adjustment Factors, Cm for wet service conditions, to SYP #2 & #1 lumber, must design values be further adjusted for ACQ-Treatment?
Thank you ...






RE: Does ACQ affect design values?
For round poles and piles (not sawn lumber) there is an "Untreated Factor", Cu, that allows an INCREASE in certain properties if the poles/piles are:
1. Air dried
2. Kiln dried
3. Untreated
before treatment.
For the details on this factor for poles & piles see Paragraph 6.3.5 of NDS 2001
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RE: Does ACQ affect design values?
What is "incising"?
Thank you for your reply. Upon furhter research, consulting with an AC-B wood treater, I have been told that Table 4B Factors are the only requirement for the scenario of which I have inquried.
... Off the record - I'm going to miss the "reference from behind and below" graphic so associated with your handle. (as I am not a member of Pats Pub) would it be appropriate to post a vote for "Reference From Behind" vs "Bright Idea"?
Thanks again ...
RE: Does ACQ affect design values?
It makes the surface look more like rough lumber than dressed lumber. Paragraph 4.3.8 of NDS 2001 covers these details.
Here is a summary on incising from the American Wood Council (responsible for content of NDS)
http://ww
And here is a USDA Forest Products Lab link that discusses it, too.
http
Surely "Reference From Behind vs. Bright Idea" is not that important...
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