Materials Group ~ Regional Lab Flagstaff

Chad Auker, Manager
928.779.7522
Perform End-Product Asphaltic Concrete testing in accordance with Arizona test methods and ADOT Standard Specifications
Perform Independent Assurance and correlation sampling, testing, and reporting in accordance with the Materials Quality Assurance Manual
Review and approve hot asphalt mix designs
Test liquid asphalt
Perform sampling and testing of emulsified asphalt in accordance with AASHTO and Arizona test methods
Certify contractors' asphalt cement distributor truck as required
Certify Portland cement concrete mixer trucks
Test Portland cement concrete cylinders in accordance with ADOT Standard Specifications
Review and approve Portland cement concrete and asphaltic concrete mix designs for construction organizations in the Region
Perform abrasion testing of aggregates used in subbases, bases, asphaltic and Portland cement concrete, in accordance with AASHTO test methods
Perform pH and resistivity tests of soils and aggregate materials in accordance with Arizona test methods
Coordinate sampling and testing for the evaluation of concrete aggregate sources
Conduct the Radiation Safety Program in accordance with Department procedures, regarding construction organizations using nuclear gauges in the Region
Perform testing of materials used by maintenance organizations with the Region, as required
Regional Materials Engineer provides technical assistance to project personnel, aids in Material issue escalations and has an active role in the development of Material Group Policy and Materials Specifications