2 Hour Fire Wall Concrete Block

For an assembly to be considered restrained merely requires that a concrete ring beam also referred to as a bond beam be poured around the perimeter of the floor system with the inclusion of reinforcing steel in the ring beam and in the grouted key joints.
2 hour fire wall concrete block. Finishes on concrete masonry walls can increase the fire resistance rating. 1 groupfire resistance rating hr a b e h 4 i r 1 r 2 u3a f 1 h 3b h 5 m s 13 h 1 h 24b f 2 s 2 r 3 r 42 a walls shall not be less than 2 hour fire resistance rated where separating buildings of type ii or v construction. Chapter 7 of the international building code ibc refs. 7 substation transformer firewalls are typically free standing modular walls custom designed and engineered to meet application needs.
2 hr 2 hr top and bottom of wall joint for concrete over metal deck simplified drawing 2 29 16 2 hr 2 hr top and bottom of wall joint for flat deck simplified drawing 6 7 16 dwg pdf non fire rated smoke partition cp 506 smoke and acoustic sealant comprehensive drawing 8 26 15. Concrete masonry is widely specified for fire walls and fire barriers because concrete masonry is noncombustible provides durable fire resistance and is economical to construct. A basic 6 inch thick floor panel system has a 4 hour fire resistance rating per ul k909. Design loads fire wall must withstand a minimum 5 lb sq ft 24 kg m 2 and additional seismic loads.
Contributions of plaster or gypsum wallboard shall be determined from ibc tables 722 2 1 4 1 and 722 2 1. Linear interpolation from table 721 3 2 of the florida building code for exposed finish block mix 55 limestone 45 siliceous aggregates. The fire resistance rating of concrete masonry walls depends on the type of aggregate used in the units. Table 1 required fire wall fire resistance ratings ref.
A 2 hour rating can be achieved by a wall with an equivalent thickness of as little as 3 1 5 inches when expanded slag or pumice is used or 4 1 2 inches when siliceous gravel is used as the aggregate. Westbrook block is a proud producer of underwriters laboratories ul approved fire rated cmu in both light weight and normal weight densities in 2 3 and 4 hour configurations. B for group h 1 h 2 or continue reading detailing concrete masonry fire walls. Expanded slag or pumice 4 7 4 5 4 4 4 2 4 0 3 8 3 6 3 4 3 2 3 0 2 7 2 5 2 1 1 9 1 5 a fire resistance rating between the hourly fi re resistance rating periods listed may be determined by linear in terpolation based on the equivalent thickness value of the concrete masonry unit.