Fire Resistance Ratings: wall_concrete
Fire resistance ratings for building assemblies per UL/ASTM E119 — IBC Table 601 construction-type requirements (Types IA through VB), CMU wall equivalent-thickness ratings by aggregate type, gypsum board on steel/wood stud assemblies, concrete slab and wall thicknesses, composite steel deck/concrete floors, spray-applied fireproofing (SFRM) for columns and beams by W/D ratio, concrete-encased column ratings, and fire door assembly ratings (20-minute through 3-hour). Sources: IBC 2021 Table 601, ACI 216.1-14, UL Fire Resistance Directory, GA-600-2021, NFPA 80-2022, ASTM E119.
| assembly category | record id | assembly description | assembly type | construction material | fire rating hr (hr) | key materials | min thickness in (in) | notes |
|---|---|---|---|---|---|---|---|---|
| wall_concrete | concrete_carbonate_2hr | Cast-in-Place Concrete Wall — Carbonate Aggregate — 2 Hour | wall | cast_in_place_concrete | 2 | normalweight_concrete_carbonate | 4.6 | Carbonate aggregate (limestone) provides better fire resistance than siliceous |
| wall_concrete | concrete_lw_2hr | Cast-in-Place Concrete Wall — Lightweight — 2 Hour | wall | cast_in_place_concrete | 2 | lightweight_concrete | 3.5 | Sand-lightweight concrete; 105-120 pcf density |
| wall_concrete | concrete_siliceous_1hr | Cast-in-Place Concrete Wall — Siliceous Aggregate — 1 Hour | wall | cast_in_place_concrete | 1 | normalweight_concrete_siliceous | 3.5 | Solid concrete wall; siliceous aggregate (granite/quartz); minimum per ACI 216.1-14 Table 4.4.2 |
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