Surface Protective Coatings

Concrete is today’s main building material. Modern infrastructure, road and bridge construction would be inconceivable without concrete as would skyscrapers and industrial buildings. Concrete is a versatile building material used especially in civil engineering in combination with steel. Concrete and reinforced concrete are building materials that have significantly changed construction. Despite concrete’s durability, serious concrete damage that endangers a building’s existence frequently occurs. The main cause of concrete damage is reinforcement steel corrosion due to environmental influences. The fresh concrete is highly alkaline which passivates the reinforcement steel. However when the concrete structures remain vulnerable to external atmosphere for 24 hours a day, 7 days a week in all operational environments, the steel’s passivation layer (protective layer) begin to dissolve due to harmful substances that penetrate into the building material by means of moisture. The water penetrates into the concrete as deep as the steel reinforcing rods or steel mesh, depends on the porosity, to cause their rusting. The pitting corrosion starts in the steel, damaging the structural integrity.

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Since the volume of the corrosion products is much higher than that of the steel, it occupy a volume equal to six times that of original steel. The formation of rust products will lead to cracking, delamination and spalling of the cover concrete when expensive stress exceeds the tensile strength of the concrete, and reduction of steel reinforcing cross section may lead to structural failure. This accelerates the corrosion process by providing as easy access for the water and chlorides to reach the steel. When corrosion products are deposited, they induce tensile stresses on the surrounding concrete, which cause cracking to occur. The absorption of harmful substances is usually the outcome of contact between concrete material and water as capillary action transports the water into the concrete. This contributes to the following forms of damage. Chemical corrosion, Cracks by swelling and shrinkage, Efflorescence, Lime leaching and salt damage by hydration, Dirt pick-up, Rust stains, Fungus, moss, lichen and algae growth. The protective layer against water uptake is the paramount importance. The Buildings hence need Surface Protective Coatings to protect them from causing reinforcement corrosion due to ingress of chlorides, chemicals, road salts, freeze/thaw cycles or other contaminants through water and oxygen. Monarch’s MonoGuard Surface Protective Coatings provide reliable protection for concrete structure aim is to preserve the value of old and new buildings & civil infrastructure to protect them against weathering and structural damage. It is the known fact that repairing the concrete structures is up to ten times more expensive than preventive measures. The coatings protect the concrete in the most efficient way and the building fabric remains intact as a result. The concrete thus is less sceptible against physical, chemical, UV radiation, thermal stress and microbiological attack especially in road, bridge and building construction.



Features

  • Durable in all climatic conditions.
  • Excellent barrier to carbon dioxide, chloride ions, sulphates, oxygen and water
  • Improves the resistance of concrete to many industrial chemical
  • Attractive- available in a range of colours.
  • Antifungal- resistant to fungal attack
  • Non yellowing :Will not yellow on exposure to UV rays.
  • Chemical resistant :Excellent resistance to most industrial chemicals, acids, solvents etc.
  • Hygienic : Seamless surface, easily cleaned
  • Excellent adhesion : Bonds well with both steel and concrete substrates
  • Excellent flexibility to withstand higher temperatures

Product Application

  • Chemical/petrochemical plants
  • Refineries
  • Power stations
  • Nuclear facilities
  • Industrial facades
  • Wood and paper industry
  • Food industry
  • LNG
  • methanol and ethylene plants
  • Natural gas storage vessels/tank farms
  • Bioenergy/environmental technology
  • Turbine insulation
  • Cement works
  • Sea water desalination
  • Fertiliser factories
  • Waste incineration
  • Trace heating
  • Underground tank
  • Overhead tank
  • Reservoir
  • chemical plants
  • Cooling Towers