"Monolit" is fire-proof heat-resistant coating based on granulated mineral fibre and inoragnic binding material. It is designed to increase fire-resistance degree of concrete and reinforced concrete structures up to 4 hours.
1. FIELD OF APPLICATION AND PROPERTIES
Priming-type fire-retardant coating "Monolit" is a one-component mixture consisting of specific additives and mineral binding material (portland cement).
The coating is designed to increase fire resistance degree of reinforced concrete structures (bearing and enclosing walls in buildings and structures, tunnels, garages, etc.) up to 4 hours. The coating cannot change the exterior, will not crack and peel off from the surface protected. It will endure small deformations, impacts and other dynamic loads. The coating is stable for mechanical cleaning, resistant against agressive agents and specific treatments. The coating does not contain asbestos and other ingredients harmful for humans and environment.
2. NORMATIVE AND TECHNICAL REQUIREMENTS
Fire-protection coating MONOLIT for reinforced concrete structures corresponds to fire safety requirements established by GOST 30247.1-94 "Construction structures. Fire resistance tests. Bearing and enclosing structures".
Fire safety certificate No. ÑÑÏÁ.RU.ÎÏ047.Í.00168
Hygiene certificate 77.01.03.576.Ï.20024.09.4
3. TECHNICAL PROPERTIES
Specific weight of the coating, kg/m3 460-550
Theoretic consumption of the coating for layer thickness of 10 mm, kg/m2 4,5
Compression strength, MPa, not less than 3,1
Density in dry condition under GOST 5802-86, kg/m3 430
Cohesion with the base without reinforcing grid, MPa 0,15
Operational temperature range under normal conditions, (0Ñ) -40…+40
Smoke formation no smoke formed
Fire resistance limit (minutes) Layer thickness 1 (mm)
1 For reinforced concrete slabs with thickness of the concrete layer up to principal reinforcement bottom from the heated side being not less than 20 mm
4. SURFACE TREATMENT
Prior to application all dust, dirt and oit stains should be removed from the surface of the structure protected. If necessary the concrete surface can be wetted.
Ambient temperature - not less than +3 °Ñ;
Relative air humidity - not more than 85%;
The coating shall be applied onto the surface by means of plastering machines (Putzmeister P11, «ISO-P5», «Ò-103», ÌÀØ-1, “CAFCO MIX”, “CAFCO JET”, etc.) or manually.
According to User's Manual the dry material and water should be put into the machine in corelation 1:1. The mixture is aplied onto the surface with the help of a pneumatic injector supplied with compressed air of 0,6 mPa and consumption of up to 0,5 m3/min.
The thickness of one layer should not exceed 10 mm. If the thickness of the layer is more than 8 mm it is necessary to reinforce the surface prior to application.
Interlayer drying-out period amounts to 2 up to 6 hours under temperature of not less 20 0Ñ and relative air humidity of up to 85%.
Final drying-out of the coating for it to gain 98% strength should be not less than 28 days.
Cleaning of tools
Tools should be washed immediately after application.
6. OPERATING CONDITIONS AND LIFE TIME OF THE COATING
The coating can be used both indoor and in open air. Operational temperature range: -50…+50 °Ñ. The operation period of the coating is not less than 50 years.
7. PACKING AND STORAGE
Fire-proof coating "Monolit" is supplied 30 kg bags.
The material should be stored in a dry room in the manufacturer's packing. Shelf life is 12 months from the production date.