Marc Dudley

Construction materials testing, Laboratory (Soils)

Responsible for Laboratory day to day operations, including AASHTO, CCRL, & AMRL in-house performance audits since 2018.

• Proctors, ASTM, AASHTO, TXDOT
• Splitting and reducing samples
• Sieve analysis for course and fine aggregates.
• Absorption and Gravity of course and fine aggregates.
• Los Angeles (LA) Abrasion testing
• Wet Ball Mill testing
• Sand Equivalent testing
• Acid Insoluble testing
• Organic Impurities testing
• Deleterious Materials testing
• Clay Lumps and Friable Particles testing
• Flat and Elongated testing
• Magnesium and Sodium Soundness testing
• Asphalt Core absorption and gravity testing
• Liquid and Plastic Limits testing
• Materials finer than the No. 200 testing
• Responsible for training all CMT soils lab technicians
• Responsible for all CMT soils lab data entry
• Responsible for calibrations and equipment maintenance

Construction Materials Testing, Laboratory (Concrete)

• Compressive Strength testing of Cylinders, (3x6, 4x8, & 6x12).
• Flexural Strength testing (Beams)
• Sulfur capping of cylinders, prisms, and cores
• Responsible for calibrations and equipment maintenance
• Responsible for training all CMT concrete lab technicians
• Responsible for concrete lab data entry

Geotechnical Laboratory Testing

• Atterberg Limits testing
• Materials finer than No. 200 testing
• California Bering Ratio (CBR) testing
• Soils Hydrometer testing
• Swell Testing
• Unconfined Compressive Strength of soils testing
• Resistivity of soils testing
• Sulphates and PH testing

Construction Materials Testing, Field (Soils)

• Proof Roll observations
• Nuclear Field Density testing
• Sampling soils, course and fine aggregates
• Sand Cone testing
• Responsible for training all new CMT field (soils) technicians

Construction Materials Testing, Field (Concrete)

• Sampling and testing concrete from stationary mixers, revolving mixers, volumetric mixers, and concrete pumps
• City of Austin trial testing
• Concrete coring
• Responsible for training all CMT field (concrete) technicians
• Responsible for calibrations of technicians equipment

Construction Materials Testing, Field (Masonry)

• CMU construction observations
• Reinforcing Steel inspections
• Sampling and testing of mortar and grout
• Mix design observations and testing
• Responsible for training CMT field (Masonry) technicians

Special Inspections

• Reinforcing steel inspections, includes slabs on grade, slabs on deck, paving, piers, etc.
• Drilled pier observations. Diameter and depth verifications. Verifying penetration into the bearing stratum. Checking for pier plumbness.
• Post concrete epoxy dowel and anchor observations.
• Wood Framing and Sheathing inspections
• Post Tension Cable (PT) stressing observations.
• Well educated on reading plans and understanding jobsite specifications
  

Performance Supplemental Examiner