For roads that have minor cracking or raveling but are structurally sound, an ultra-thin bonded wearing course is a cost-effective and efficient solution for rehabilitation. The Roadtec SP-200 paver sprays a tack coat down just in front of the spreading augers, and the screed levels off a 3/4- to 1-in. lift of hot mix. The SP-200 holds 2,100 gal of emulsion and can pave at more than 100 ft per minute. It is especially useful for slower-moving urban projects, but also can perform high-production work with the bonded wearing course.
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