FIREPROOFING OF STRUCTURAL STEEL
Structural steel is the backbone of most modern buildings, but under the extreme heat of a fire, steel rapidly loses its yield strength and load-bearing capacity, which can lead to a catastrophic collapse of the entire structure. A structural steel fireproofing system creates a reliable thermal insulation barrier that drastically slows down the heating of the steel. This preserves its structural stability over an extended period, significantly increasing the fire resistance rating of the structure and providing the vital time required for safe building evacuation and emergency rescue operations
Technology Products
Rock Wool Slab "Lamella"
Product Description
Thermal Insulation & Fireproof “Lamella” Slabs are premium-grade rock wool materials engineered from natural basalt rock. They are specifically designed to maximize the fire safety of building structures. The slabs are strictly non-combustible (Class A1) and, depending on the modification, can be supplied with a factory-applied decorative coating
Product Application
Designed for the structural fire protection of columns, beams, and floor slabs in facilities with stringent fire safety regulations, such as parking garages, basements, shopping malls, and residential complexes. The system relies on securing the fireproofing slabs to the reinforced concrete substrate using a heavy-duty fire-resistant adhesive. This system guarantees a fire resistance rating for reinforced concrete floor slabs of at least 180 minutes (REI 180).
Product Specifications
- Length: 1197 – 1203 mm (Nominal: 1200 mm)
- Width: 199 – 201 mm (Nominal: 200 mm)
- Thickness: 100 – 101 mm (Nominal: 100 mm)
- Density: 80 – 93 kg/m³ (Requirement: up to 100 kg/m³)
- Thermal Conductivity: At (25±2)°C: 0.0396 W/(m·K) (Requirement: ≤ 0.041 W/(m·K))
- Moisture Content (by weight): max. 0.1% (Requirement: ≤ 1.0%)
- Compressive Strength (at 10% deformation): 0.066 MPa (Requirement: ≥ 0.06 MPa)
- Tensile Strength (perpendicular to faces): 0.142 MPa (Requirement: ≥ 0.100 MPa)
- Water Absorption (partial immersion): 9.6% (Requirement: ≤ 30.0%)
- Organic Matter Content (by weight): 3.8% (Requirement: ≤ 4.0%)
- Reaction to Fire / Combustibility: Non-combustible (НГ / Class A1)
- Shelf Life / Storage Period: max. 18 months
- Compliance Standards: TS EN, TS EN ISO
High-Density Industrial Rock Wool Slab (160 kg/m3)
Product Description
The product range includes comprehensive systems for structural thermal and fire protection of buildings, alongside specialized materials for the technical insulation of engineering networks.
Product Application
Engineered to enhance the fire safety of load-bearing structural steel components in both civil and industrial construction. It is designed for new construction projects as well as the reconstruction of existing buildings and structures of various types, serving as an advanced thermal insulation and fireproofing barrier
Product Specifications
- Material: Rock wool (Stone wool)
- Density: 160 kg/m³
- Length: 1200 mm
- Width: 600 mm
- Thickness: 50 – 120 mm
- Facing / Coating: Unfaced
- Reaction to Fire / Combustibility: Class A1 (Non-combustible)
- Thermal Conductivity (λ): [insert value]
- Water Vapor Diffusion Resistance (μ): 1
- Packaging Material: Polyethylene wrap (PE film)
- Compliance Standards: TS EN, TS EN ISO
Purpose & Objectives
The primary objective of structural fireproofing is to delay the heating of steel to its critical failure temperature of . This preserves the structural integrity and load-bearing capacity of the building’s framework for a designated duration (R15, R30, R90, R120, etc.), securing the vital time window needed for safe civilian evacuation and emergency rescue operations
Applications & Core Industries
Industrial & Warehousing Facilities
- Building Frameworks (Columns & Beams): Fire protection of load-bearing structural steel frames in warehouses, manufacturing plants, and hangars. This ensures overall structural stability during a fire event.
- Technological Overpasses & Pipe Racks: Specialized protection for structural steel supports carrying vital utilities and pipelines within the petrochemical, gas, and power generation sectors.
Commercial & Public Buildings
- Shopping Malls & Business Centers: Structural fireproofing of columns, trusses, and floor assemblies that span large open areas. In these high-traffic environments, fire resistance ratings directly dictate safe evacuation timelines.
- Sports Arenas & Stadiums: Securing the structural stability and load capacity of heavy-duty roof trusses, architectural canopies, and grandstands.
Critical Infrastructure
- Airports & Transportation Hubs: High-performance protection of massive structural steel trusses and roofing systems where maximum fire resistance ratings (R90 – R120) are strictly mandated.
- Energy Sector (CHPs, Nuclear Power Plants): Advanced thermal insulation of structural steel elements inside turbine halls, generator rooms, and boiler facilities.
Frequently Asked Questions (FAQ)
Why do structural steel elements require fireproofing?
At temperatures around , structural steel rapidly loses its load-bearing capacity and yield strength, which can trigger a catastrophic structural collapse. Structural fireproofing prevents this by forming a reliable thermal barrier, significantly extending the duration during which the framework maintains its stability
What is a fire resistance rating for structural steel?
This is the duration (measured in minutes) during which a structural steel component can successfully perform its load-bearing functions while exposed to fire. Our advanced systems enable structures to achieve certified ratings of R30, R60, R90, and higher, in strict compliance with specific project and engineering requirements