Back to Job Openings
Concrete Intern
Willmar MN

As a valued member of our team, the CIM QC Tech will test and manage the concrete quality, design mixes, maintain project files, schedule trial batches, monitor the mix submittal process, and job service requirements. The CIM QC Tech will communicate with customers to gather information regarding mix requirements and with sales teams to review project specifications and perform mix submittals. To perform this job successfully, an individual must be a self-starter. This is an internship specifically designed for students enrolled at South Dakota State University’s Concrete Industry Management Program.


  • Responsible for plant mix performance.
  • Evaluate test data and compile files for mix submittals and provide a history of mix performance.
  • Process and test aggregates per ASTM specifications, cast and test concrete cylinders per ASTM specifications, evaluate concrete and aggregate performances, maintain mix items, and costs in the computer system.
  • Knowledge of cement testing requirements and processes required to obtain approvals from state agencies.
  • Working knowledge of concrete admixtures, supplementary cementitious materials, various aggregates, and their impact on the performance of concrete mix designs.
  • Working knowledge of concrete mix design performance with various constituents.
  • Working knowledge of concrete, cement, and aggregate testing procedures complying with ASTM and ACI requirements.
  • Must be able to diagnose and analyze concrete performance issues or any concerns customers may have in the performance of mixes.
  • Participate in project meetings with customers and their engineering staff regarding concrete deliveries, concrete performance, and the mix submittal process.
  • Provide training to staff along with plant personnel and operations in any field related to the performance of concrete, cement, supplementary cementitious materials, admixtures and/or any other concrete products.
  • Oversees concrete knowledge training for all drivers and plant staff.
  • Conducting quality audits to ensure that the quality policies are being adhered to.
  • Observe job site testing and conduct comparison testing with independent testing agencies.
  • Communicate with all parties in regard to the design mixes being utilized and admixture dosage rates to ensure high quality dynamically.
  • Assess jobsite conditions and recommend solutions to ensure efficient operations.
  • Compile and graph test data and plant records for specification compliance in commercial and DOT specifications.
  • Carry out all pertinent ASTM, ACI, and DOT testing procedures to provide Quality Control/Assurance and data for producing quality concrete that meets customer specifications.
  • Ability to read and interpret construction specifications.
  • Evaluates existing quality or production standards and procedures, recommends modifications, and leads their implementation.
  • Promotes plant and job site safety.
  • Maintains all records and writes reports outlining results in the QC testing process.
  • Maintains lab area and equipment according to industry standards.
  • Follows company safety and environmental rules, regulations, and policies.
  • Able to multitask in a fast-paced environment.
  • Proven record of dependability.
  • High level of attention to detail in monitoring, testing, and documentation.


  • Currently enrolled in the Concrete Industry Management Program at South Dakota State University
  • Strong reasoning and math abilities.
  • Familiarity with industry standards and specifications.
  • Knowledge of ready-mix manufacturing design, processes, and equipment.
  • Familiarity with all commonly used computer software (MS OfficeSuite, etc.).
  • Must be able to lift up to fifty pounds on a regular basis.
  • Ability to handle loading and unloading of cylinders and other physical activities as required from time to time.
  • Available to work on a flexible schedule (days, nights, weekend)


  • MnDOT Certification as it relates to the industry
  • NRMCA Certified Concrete Technologist, Level 2
  • NRMCA Certified Concrete Technologist, Level 3
  • NRMCA Certified Concrete Technologist, Level
Copyright © 2024 Duininck Companies. All Rights Reserved.
crossmenu linkedin facebook pinterest youtube rss twitter instagram facebook-blank rss-blank linkedin-blank pinterest youtube twitter instagram