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Updated: July 22nd, 2008 05:34 PM EDT

Industry roundtable

Quality Control Technology Guide

Akehurst, Troxler Electronic Laboratories Inc.: "The developments we see include permeability, stiffness/modulus, Warm Mix asphalt, and shear measurements for mix designs."

Arbelaez, InstroTek Inc.: "Our company actually has two pieces of equipment that can be used for both mix design and performance testing. The SPT-Asphalt Performance Tester has been heavily backed by FHWA as the future of asphalt performance testing. In the future, we see this product being a staple of any asphalt lab much like a gyratory compactor or NCAT Furnace.

"The CoreDry Rapid Asphalt Drying System is also a laboratory product that uses a method of drying asphalt cores that is super fast — which contractors like — extremely accurate, and does not harm the sample — which DOTs like. Indiana DOT is one of the first DOTs to experiment with asphalt warranties. They have adopted this drying method and now have a CoreDry in each of their district labs."

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