Equipment World Digital Magazine
Issue link: http://read.dmtmag.com/i/816045
EquipmentWorld.com | April 2017 59 Process basics Slurries are distributed by equip- ment such as VSS Macropaver's 12D truck-mounted machine and Bergkamp's recently introduced M310CS truck-mounted paver that mix and spread the base materials in a continuous process. The application is quick, and the material sets up fast, sometimes allowing vehicles back on the road within an hour. These machines apply material similar to an asphalt paver, but via a spreader box. It's somewhat akin to a hopper and screed all in one. Slurries are placed in a single pass and single layer, while microsur- facing can be applied in multiple lifts. If microsurfacing is applied to ruts, then a special attachment designed to apply more material is used, often with larger aggregate to the deeper areas in the application path. You won't see rollers in these operations, as compaction isn't much of an issue. Slurries are good for fi lling cracks and voids. They provide a new texture, a weather-tight seal and a "refreshed" look. When it's being applied, microsurfacing is a brownish color, which could con- cern residents. But when cured, the surface will turn black, as the water in the mix evaporates. Concerned about OSHA's new crystalline silica regulations? Clear the air with E-Z Drill's Dust Collection System. It easily connects to both new and existing units. You can breathe easy and know your jobsite meets OSHA Table 1 requirements. C L E A N A I R M A D E E -Z . www.ezdrill.com | 1-800-272-0121 THE YELLOW DRILL WILL Get a Dust Collection System. Get a Dust Collection System. LEFT IN THE DUST. Untitled-50 1 2/13/17 10:20 AM Image: Seattle DOT Microsurfacing and slurry seals are typically limited to application of one lane at a time but can be placed on adjacent lanes relatively quickly, with traffi c able to return to the road in as little as one hour.