Better Roads Digital Magazine
Issue link: https://read.dmtmag.com/i/85916
May 2012 Volume 82. Number 5 Contents DIGITAL EDITION EXTRA SPECIALS BetterRoads.com Dig Big 30- to 50- metric ton crawler exca- vators are versatile, yes, but man can they produce. This is Big Iron that really puts up impressive num- bers. In Court Brian Morrow again looks at a court case that has ramifications for our industry. MORE MORE MORE New Road Products contd. We have extra pages of new products from major trade shows and else- where in our digital edition. Twitter: www.Twitter.com/BetterRoads Connect to Better Roads at wwww.LinkedIn.com Facebook: http://tinyurl.com/BetterRoadsFB COLUMNS & DEPARTMENTS 3 Lattatudes 44 Kirk Landers PRODUCTS & SERVICES 36 Marketplace 43 Advertiser Index emically urability ortland , boost me, mical ork nce to attack, cement BETTER BRIDGES A bridge. A rope. An engineer Harnessed to ropes, engineer/climbers can produce some very effective structural inspection of bridges high and low. These engineers can reach places where equipment cannot work. All they need is certification, experience and nerve. HIGHWAY CONTRACTOR Look Ma, No Strings! Stringless concrete paving comes to the Kansas and Iowa in two projects where changes in the traditional way of doing things leads to some advantages to both the con- tractors and the state. Ground granulated blast furnace (GGBF) slag is formed when molten iron blast furnace sla quenched in w forming a granu product with ve crystal formatio 10 ROADSCIENCE 5 20 The Chemistry of Concrete Admixtures. Mixers –such as fly ash, silica fume, ground granulated blast furnace slag - added immediately before or during mixing can enhance quality, accelerate or retard setting time, enhance frost and sulfate resistance, control of strength development or improve workability and finishability. Or simply work with air entrainment or water reduction. 32 APPLICATIONS & INNOVATIONS Roads in the Race for Gas Fracking trucks are heavy. Very heavy. But the search for natural gas must go on. Working to get the most out of the aging roads these trucks use is another essential job. Better Roads May 2012 1 NEW