fire rate of masonry wall - Contractor Talk - Professional Construction and Remodeling Forum

vovan · 11-05-2009, 05:03 AM

In my project, The client request for evident to prove that the masonry wall can stand for 2hr fire resistant. But in my country, the design code show that the masonry wall can stand for 2 hr fire rate.Pls help me how to explain. Thank so much

Tscarborough · 11-05-2009, 09:02 AM

8x8x16 lightweight CMU has a 2 hour fire rating using the equivalent thickness formula.

Code Requirements for Determining Fire
Resistance of Concrete and Masonry Construction
Assemblies, ACI 216.1/TMS-0216 (ref. 1)

Go here for the full info:

http://www.ncmaetek.org/etek/pdf_bra...pdf&si=468.jpg

dakzaag · 11-05-2009, 06:48 PM

Quote:

Originally Posted by Tscarborough

8x8x16 lightweight CMU has a 2 hour fire rating using the equivalent thickness formula.

Code Requirements for Determining Fire
Resistance of Concrete and Masonry Construction
Assemblies, ACI 216.1/TMS-0216 (ref. 1)

Go here for the full info:

http://www.ncmaetek.org/etek/pdf_bra...pdf&si=468.jpg

I have always heard this as well, but what about regular block (8X8X16)
Are they good for two hours? This comes up once in a while and I never know for sure what the answer is.