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Mix Designs for Airfield Paving

Mix Designs for Airfield Paving | Phoenix, AZ

GTS partnered with a general contractor, a concrete subcontractor, and a US government representative to deliver comprehensive mix design services for a large-scale airfield paving project. Our Phoenix-based engineering team conducted extensive laboratory testing and verification to ensure the mixes met strict ASTM, ADOT, and military specifications.

Project Scope & Geotechnical Needs

The project required a proprietary concrete mix design that could withstand the heavy loads and operational demands of a military airfield. Our geotechnical engineers collected several thousand pounds of aggregate materials from the proposed borrow pit and conducted construction materials testing to evaluate compliance with:

  • ASTM C-33 (aggregate quality)
  • ASR and deleterious requirements (alkali-silica reactivity and harmful materials)
  • Comprehensive durability and workability testing

By understanding the soil conditions and aggregate properties, GTS was able to create multiple test mixes for evaluation.

Laboratory Testing & Verification

Once aggregates were approved, our materials testing laboratory created and batched trial mixes, testing plastic properties in accordance with ASTM C-94. We then fabricated:

  • Flexural beams for load and bending performance
  • Compressive strength cylinders, tested multiple times daily for 90 days

Throughout the testing phase, our engineers compiled detailed data including break results, aggregate gradations, mill certifications, workability graphs, and coarseness factors. This ensured the mixes were optimized for strength, stability, and field placement methods.

Engineering Services & Deliverables

The GTS team provided the contractor with a complete mix design proportioning study, including:

  • Recommended water-cement ratios for slip-form and hand placements
  • Documentation of all laboratory test results
  • Graphical data for long-term performance tracking
  • Engineering recommendations to meet both ASTM and military specifications

Our role was not only to test materials but to act as a partner in design recommendations, ensuring the final product met both structural and regulatory requirements.

Project Outcome

The airfield paving project was successfully completed with GTS’s mix designs at the core of its foundation. By combining comprehensive geotechnical investigations, construction materials testing, and engineering expertise, we delivered a durable, compliant, and high-performance pavement system.

This project highlights how GTS provides geotechnical engineering services in Phoenix, Yuma and throughout Arizona with the precision, accreditation, and quality assurance needed for critical infrastructure and transportation projects.

Project Information

  • Client : US Military
  • Location: Phoenix, AZ
  • Services: Geotechnical Engineering & Materials Testing

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