Asphalt Design Guide - APAI Asphalt, Iowa asphalt, pavement, pavement design, highway construction, interstate construction, road construction, paving, driveway paving, smooth, durable, sustainable, recyclable, perpetual pavement, Iowa DOT roads, training, construction jobs, trails, Trail, bicycle trail, running tracks, county roads, interstates, highway construction, Black, black Road, Iowa asphalt association, asphalt association, lifecycle cost analysis, LCCA, I pave, I save, asphalt jobs, asphalt contractors I will contractors, roller, Paver, steamroller, APAI, Asphalt Design Guide. This design guide is intended to give general structural design and mix type selection guidance for some typical Iowa pavements. It is organized by general …