- Minimizes the risk of aquaplaning
- A high volume of water is required for ice to form
- Macrostructure causes an inhomogeneity of ice
- The sharpness of the surface inhibits the formation of ice
- Optically highlights a dangerous situation to the driver
- The binder is a high quality two-component reaction resin
- Tensile grip greater than 2.3 MPa
ZNAČKY Morava a.s. introduces FROSTGRIP - a patented safety road surface coating that eliminates the effects of ice on safety. Critical places become dangerous at temperatures around 0°C. These are, in particular, roads on bridges, slip roads of cross-roads or sections in the vicinity of watercourses.
- bridges, crossroads, slip roads
- sections in the vicinity of watercourses
- places where there is different heat accumulation and conductivity
Less water on the surface means less water under the wheels
FROSTGRIP limits the moisture content and density of water mist minimizing the risk of aquaplaning. Thanks to the application of FROSTGRIP more water is needed before a continuous layer forms.
Dangers of ice
Freezing phenomena (ice, black ice, frost) usually occur at air temperatures of +3 to -12°C. Water freezes only at temperatures below 0°C but the ground surface and the objects on it may be cooler than air temperature. The most sensitive sections are bridges. The bridge structures have different heat accumulation and conductivity compared to the adjacent ground and the influence of the flowing air under the structure and the evaporation of air humidity from the structure cause the bridge to be cooler. Road surfaces on steel bridges freeze most often.
Visible hazard warning
Its application visually informs the driver of the possibility of ice. The FROSTGRIP system is applied in blue colour which is already known by drivers as indication of possible danger - blue road buttons, blue directional posts, blue reflectors in the barriers. The FROST GRIP being blue is much more visually effective. Additionally, the FROST GRIP system is always supplemented with an A24 ice icon directly on the FROSTGRIP treated surface.
Frostgrip - principle of this system
Where the FROSTGRIP system is used it can delay the need for winter maintenance. Due to the deeper macrostructure the formation of dangerous ice or black ice is delayed. FROSTGRIP increases the surface roughness above the standard value of Fp ≥ 0.6, thereby reducing the risk of skidding due to forming ice. Making a 0.3 to 4 mm macrostructure reduces the risk of vehicle skidding not only during ice but also in wet conditions where water flow between the road and tyre is better than on untreated road.
A thorough surface preparation is important for perfect system adherence to the road surface. The surface must be thoroughly deep cleaned, roughened and homogenized. PeelJet technology with a wide water jet is used for optimal homogenization. After cleaning and surface homogenization priming and subsequently bonding agents are applied to the concrete surface. The bonding agent is a quality epoxy resin with adhesion test (ČSN EN ISO 4624) greater than 2 MPa. Granite abrasive is immediately applied to the bonding layer to create a new sharp macro structure of the surface. In addition, a warning signage from high quality preformatted plastic is always added to the system. A high performance two-component reaction modified resin with a tensile adhesion of more than 2.3 MPa is used as binding agent and the abrasive used is a quality crushed dyed granite.
Inhomogeneity of frost
Improvement of the surface macrostructure causes an inhomogeneous frost formation. The forming frost is less compact than on smooth surface and due to the sharpness of the surface structure can be better broken by passing vehicles.