The frost protection layer keeps water from rising into the pavement, and as a result, prevents frost damage to the surface layer. For this purpose, rock is crushed and screened into graded aggregates, which are then laid and compacted. The graded, compacted aggregates ensure that the layer is sufficiently permeable to water and disrupts the soil’s capillarity.
“The mobile impact crusher MOBIREX
MR 130 Z EVO2 guarantees the optimum
material preparation required before
the frost protection layer compaction.”
Preventing Frost Damage
When it comes to compaction, surface performance, precise steering, and compaction force are critical to quality and cost-effectiveness – all properties of Hamm’s heavy compactors.