Construction Materials Testing (CMT) Services
Ensuring Quality and Reliability in Every Project
A well-designed and executed quality control and quality assurance program is essential for the success of any construction project. We provide comprehensive Construction Materials Testing services to ensure that materials meet design specifications and project requirements. With state-of-the-art laboratories, certified technical staff, and decades of experience, we deliver accurate, reliable results to support your construction projects from start to finish.
Comprehensive CMT Services
Field Testing
Our professionals observe and test sub-grade preparation, installation of sub-grade drainage systems, placement and compaction of aggregate base course, placement and compaction of bituminous materials, and concrete materials.
Plant Inspection
We offer plant inspection, including calibration of the plant and testing of stockpiled material prior to the start of production. We monitor material handling procedures, mix proportions, mixing temperatures and mixing time during production, and sample the final mixtures to ensure conformance with project requirements and approved mix designs.
Certified Technical Staff
More than 85% of our technical personnel are certified by the Michigan Asphalt Paving Association (MAPA), Michigan Concrete Association (MCA), American Concrete Institute (ACI), American Welding Society (AWS), American Society of Nondestructive Testing (ASNT), and other organizations.
MDOT Prequalified
NTH is prequalified with the Michigan Department of Transportation to provide comprehensive material, site inspection and testing services, as listed below:
- Aggregate construction inspection and testing services
- Asbestos investigation
- Bituminous plant inspection and testing services
- Density inspection and testing services
- Geotechnical engineering services
- Portland cement concrete inspection and testing services
- Remediation
- Removal of underground storage tanks
- Site investigation
- Specialty walls / slopes design
Laboratory Materials Testing
We provide comprehensive material selection and quality control services through our state-of-the-art laboratory. Spanning over 9,000 square feet and equipped with advanced testing technology, our laboratory is staffed by highly experienced professionals committed to delivering accurate and reliable results. Our facility features a sophisticated Laboratory Information Management System (LIMS) designed to streamline the testing process and replace outdated systems, ensuring efficient electronic data management for construction materials and geotechnical testing. Our laboratory facilities comply with ASTM E329 and ASTM D3740 for agencies engaged in the testing and/or inspection of materials used in construction. In addition, our laboratories participate in the AASHTO Materials Reference Laboratory, and Cement and Concrete Reference Library (CCRL) programs. The NTH concrete laboratory staff is trained in the latest American Society for Testing and Materials (ASTM) and American Concrete Institute (ACI) testing methods. We provide:
Concrete Testing
We perform more than 15 standard concrete tests to evaluate mix designs and ensure compliance with strength requirements. Our services also include specialized testing of concrete, grouts, and masonry materials. With a curing room capable of holding over 1,000 samples in a controlled environment, we meet ASTM C1077 and ASTM E329 standards for quality assurance in concrete testing.
Soil Testing
Our laboratory conducts over 19 standard soil tests for various earthwork applications, from basic index testing to advanced strength and compressibility evaluations. Following ASTM and AASHTO standards, we utilize automated equipment to provide fast, high-quality results, adhering to ASTM D3740 requirements.
Aggregates and Asphalt Testing
We offer a full range of testing for aggregates and asphalt, performing over 10 aggregate tests and 7 asphalt tests in compliance with ASTM and AASHTO standards. Our laboratory meets ASTM D3666 standards, ensuring reliable results for construction materials used in critical infrastructure.
NTH Lab Qualifications
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- American Concrete Institute (ACI) certified
- Michigan certified aggregate technicians
- Michigan certified Bituminous QA/QC technicians
- NICET level II in geotechnical engineering technology
- NICET level II in construction material testing for soil, concrete and asphalt
AASHTO Accreditations
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- Quality Management System – accredited since 7/23/2007
- Asphalt Mixture – accredited since 7/23/2007
- Soil – accredited since 7/23/2007
- Aggregate – accredited since 7/23/2007
- Concrete – accredited since 8/15/2007
Projects
