Pneumatic-Tire Advances

摘要

Once used primarily as an "in-between" roller ceding final compaction glory to its vibratory drum siblings, the pneumatic-tire roller is carving out additional niches by rolling various materials. Manufacturers are reacting by updating their on-board technology and offering more options along with the required Tier 4-Interim updates. Pneumatic-tire units are often used on "scratch courses," which are very thin lifts of hot mix asphalt to fill depressions and level up the surface prior to resurfacing. "They're also excellent machines to seat stone or gravel when spraying seal coats on farm-to-market roads or on shoulder rehabilitation," says Mike Watt, product manager for Volvo Construction Equipment.