WisDOT Services

Our technicians and engineers have received Highway Technician Certification Program (HTCP) certifications for testing construction materials.  We have staff certified as AggTech I, AggTech II, PCCTech I/IA, Compressive Strength Tester, HMATech I, HMATech II, HMATech III, and HMA MD.  You can find the most recent list of certified laboratories on the WisDOT website.  Further, the HTCP website offers a current list of certified technicians.

Aggregate Testing:

• Sampling
• Moisture
• Permeability
• Fracture Count
• Splitters
• Gradation
• Unit Weight
• Flat and Elongated
• Liquid / Plastic Limits
• Specific Gravity

Hot Mix Asphalt (HMA) Testing:

• Mixture Sampling
• Extractions
• Mix Designs
• Bulk Specific Gravity
• Rice Specific Gravity
• Gyratory Compaction
• Air Voids
• VMA

Concrete Mix:

• Mix Sampling
• Compressive Strengths
• Air Meter Calibration
• Air Content
• Aggregate Correction (Air)
• Slump
• Cores
• Concrete Temperature

Soils:

• Soil Sampling
• Proctor
• Sieve Analysis
• Field Moisture
• Determining Shrinkage Factor
• Specific Gravity, Soil
• Hydrometer
• Percent Passing #200 Sieve

River Valley Testing Corp. © 2004-2010