The present invention relates to a radial tyre (1) intended to be fitted to a heavy-duty vehicle of the civil engineering construction plant type and, more particularly, to the tread (2) thereof. According to the invention, such a tyre is characterized by a tread surface siping extent TL at least equal to 3 m/m2, a number of cycles to rupture NR of the elastomeric compound of the tread, at least present in the bottom of the cuts (21), at least equal to 60000 cycles and a ratio C, which is the ratio between the number of cycles to rupture NR of the elastomeric compound and the tread siping extent TL, at least equal to 20000 cycles/(m/m
Tyre tread for a heavy civil-engineering vehicle
2019-04-18
Patent
Elektronische Ressource
Englisch
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
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