Asphalt & Aggregate Mix Design Specialist

Central Specialties, Inc.; Alexandria (MN); On-site; USD 65,000 - 90,000; Full time

Benefits offered by this job

Health, dental, vision, life and 401k

Paid time off and holidays

Professional certification and培训?

Opportunities for growth within the公司

Job summary

Central Specialties, Inc. is expanding its Quality Control and Materials Engineering team in Minnesota and seeks a skilled Aggregate/Asphalt Mix Design Specialist to develop, test, and optimize mix designs for project specs and DOT requirements.

You will collaborate with plant operations, QC technicians, project managers, and agencies to ensure consistent quality and efficient production. The role requires hands-on lab and field work, travel to plant sites and pits, and strong analytical skills

Qualifications

• 2–5+ years of experience in asphalt mix design, materials testing, or QC in road construction.
• Understanding of AASHTO, ASTM, Superpave, and DOT mix design procedures.
• Experience operating gyratory compactors, ovens, sieves, balances, and related lab equipment.
• Strong analytical skills and accuracy with data and documentation.
• Proficiency with mix design and QC software.

Responsibilities

• Develop, refine, and submit asphalt mix designs to local and state DOT and project superintendent.
• Perform aggregate gradation analysis, volumetric calculations, and performance testing.
• Manage materials sampling, testing procedures, and documentation.
• Support asphalt plant operations with troubleshooting, material adjustments, and production optimization.
• Analyze test data and provide recommendations to ensure mixes meet spec and field performance expectations.
• Maintain and calibrate lab equipment; ensure all testing is performed accurately and safely.
• Conduct aggregate source evaluations and coordinate with pits on material suitability.
• Collaborate with field crews to monitor paving performance and quality during construction.
• Prepare and maintain mix design records, quality reports, and submittal documents.

Skills

Attention to detail

Strong communication

Teamwork

Independent work

Lab/field adaptability

Tools

Gyratory compactors

Ovens

Sieves

Balances

Job description

Central Specialties, Inc. is expanding its Quality Control and Materials Engineering team in Minnesota and seeks a skilled Aggregate/Asphalt Mix Design Specialist to develop, test, and optimize mix designs for project specs and DOT requirements.

You will collaborate with plant operations, QC technicians, project managers, and agencies to ensure consistent quality and efficient production. The role requires hands-on lab and field work, travel to plant sites and pits, and strong analytical skills