Material Testing And Laboratory Services


JTC has complete laboratory facilities in Dover, NH and Sutton, MA for the testing and evaluation of concrete, asphalt, masonry, soils, fireproofing, and steel, as well as miscellaneous materials such as wood. Our laboratories have the following credentials:

  • Successfully inspected by the Cement and Concrete Reference Laboratory (CCRL)
  • Successfully inspected by Northeast Transportation Technician Certification Program (NETTCP)
  • Accredited by the American Association of State and Highway Transportation Officials (AASHTO) (ASTM C1077 – Dover, NH laboratory and E329 – Sutton, MA laboratory)
  • Licensed as a Concrete Testing Laboratory by the Commonwealth of Massachusetts Board of Building Regulations and Standards
  • USACE Validated Laboratory for Construction Material Testing (Dover, NH)
  • Accredited by the National Voluntary Laboratory Accreditation Program (NVLAP Lab Code 600246-0)
  • MassDOT approved laboratory for ASR [Alkali-Silica Reactivity Testing–AASHTO T 303 (modified)/ ASTM C1567] (JTC is part of the select list of laboratories approved in the Northeast)

JTC Materials Testing and Laboratory Services Group

Each member of our field and laboratory staff has qualified for one or more programs, including:

  • American Concrete Institute (ACI)
  • International Code Council (ICC)
  • National Fire Protection Association (NFPA)
  • National Institute for Certification in Engineering Technologies (NICET)
  • Northeast Transportation Technician Certification Program (NETTCP)
  • Pre-cast/Prestressed Concrete Institute (PCI)
  • Post Tensioning Inspectors
  • Structural Steel: Ultrasonic, Mag Particle, Dye-Penetrant and Certified Welding Inspectors
  • Troxler Nuclear Density Gauge

Accreditations and Validations

To learn more about our Materials Testing and Laboratory services, please contact John D. Turner, President