Better Roads

January 2014

Better Roads Digital Magazine

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Page 19 of 31

HighwayContractor Implementation benefits of stringless paving Stringless paving eliminates the need for stringlines, which provides the following benefits, according to the National Concrete Pavement Technology Center at Iowa State University's Stringless Portland Cement Concrete Paving (Project TR-490) research findings: lines. county roads where the shoulders are limited. rounding area. need for sensors, making it easier and faster to cross bridges and other tight spots. For more findings from this report, visit it work, Steeves says, extensive paving plans that detailed all paving passes as well as daily meetings amongst the paving group to cover new issues that came up each day and coordinate with other work being completed. Some of this work included side slopes being finished; noise wall posts being drilled, set and concreted in place; noise wall panels; sharing the same haul road; barriers being built; curb and gutter work; and drillers for the sign foundation. Coordinating the paving plans was easier because the planning occurred ahead of time in an office instead of on the jobsite. "You get the design files brought over – D45 files, a file format similar to a PDF – manipulate them to smooth out transitions and then work out the vertical curves," Steeves says. "When you string point to point, you end up with a straight line." However, being able to manipulate a file in AUTOCAD and add more points allows a better radius to be developed, he continues. D45 modeling shows the machine operator a steering What YOU do is what WE protect.™ As a contractor, one of the most critical things is to protect your business with the right insurance. You can count on Bituminous for rock-solid protection. 18 January 2014 Better Roads

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