Safer and quieter roadways
Grooving & Grinding

Grooving
This process, which originated in the USA, uses special equipment (bump cutters) to cut narrow grooves, e.g. 3 x 3 x 20 mm, in concrete or asphalt pavements. The grooving process, which originated in the USA, uses special equipment (BumpCutter) to cut narrow grooves, e.g. 3 x 3 x 20 mm, in concrete or asphalt pavements to improve the drainage of water between the tire and the road surface. By means of grooving, danger spots due to insufficient water drainage, e.g. in the slope change area of concrete pavements, can be eliminated and driving safety in curves and during braking can be improved.

Grinding
Uneven concrete traffic surfaces and flight operation surfaces can massively impair driving and rolling comfort as well as traffic safety. To restore or improve evenness, skid resistance and drainage, so-called grinding (evenness grinding) is used, whereby the uneven concrete or asphalt surfaces are removed at a precisely defined height.

Gentle diamond grinding technology

By using the BumpCutter, which is equipped with a 1.2 m wide, diamond-tipped shaft, concrete layers and rock sections are ground off gently, so that no forces that could stress the structure are introduced into the pavement. Contamination on the job site and adjacent surfaces is avoided by extracting the grinding and cutting slurry directly in the area of the shaft and pumping it off into disposal vehicles. This protects the environment.

Reduction of tire-road noise

An additional effect of the grinding process is the reduction of tire-road noise by approx. 2 dB (A) compared to the average rolling noise emission of concrete pavements removed with burlap during production. Precise removal of concrete by grinding can be carried out on highways, e.g. as an upstream operation prior to the application of EP-GRIP MOBIL, a high-quality surface treatment on the binder base of reactive resin (OB-RH) in accordance with ZTV BEB-StB, which can be used to optimize noise reduction by combining high-performance OB and evenness improvement. The tire/road noise can be reduced by - 5 dB (A) with EP-GRIP 1/3 (120 km/h). For further information, see e.g. leaflet FGSV M BEB.