Pavement Dowel Bar Standard Advances Quality Control, Assurance Measures

The forthcoming ASTM E3013, Test Method for Evaluating Concrete Pavement Dowel Bar Alignment Using Magnetic Pulse Induction, will reinforce quality control and quality assurance measures behind durable, smooth mainline highways and airport runways. New to North America, magnetic pulse induction a) measures steel dowel alignment in concrete pavement joints, where the bars transfer loads from one slab to the next; and, b) yields data with which agencies or owners can determine if the dowel installation meets project specs.

 
Read More

Aggregate Industries comes clean on best truck wash down practices

Aggregate Industries US is the installation of automated, drive-through mixer truck wash down equipment.

Augmenting a policy to keep vehicles in drive or forward gear at Aggregate Industries US is the installation of automated, drive-through mixer truck wash down equipment—a best management practice with safety, quality control and water conservation benefits. Aggregate Industries US began piloting water spray systems at four Minnesota plants in 2008. It enlisted a commercial vehicle wash equipment specialist, Key Solutions of Dassel, Minn., to tailor mixer-suited nozzle bars and racks, and oversee system engineering and installation.

Read More