Use of limestone as a friction-increasing means for treating roads in winter, and at the same time returning limestone to nature

摘要

The invention concerns the use of limestone for reducing the risk of slippery roads in winter, the limestone being crushed to a fraction of 1 - 10 mm before being spread across the roads, in order thereafter to be ground by the road traffic to a finer fraction, and this limestone will be carried by wind and water back to nature.