Our Services
Construction Materials Laboratory
Our Services
Construction Materials Laboratory
Our services include:
Asphaltic Concrete Testing
NTI’s in-house laboratory has been inspected and approved by the Oregon Building Officials Association (OBOA), the City of Portland Bureau of Development Services (COP-BDS), the American Association for Laboratory Accreditation (A2LA Scope of Accreditation), the Washington Association of Building Officials (WABO), the Oregon Department of Transportation (ODOT), and the U.S. Army Corps of Engineers (USACE).
Asphaltic Concrete Testing
- Asphaltic Concrete Mix Design
- Core Density and Thickness ASTM D2726/D1188
- Theoretical Maximum Specific Gravity ASTM D2041; AASHTO T209
- Oil Content/Gradation Ignition ASTM D6307; AASHTO T308
- Oil Content Calibration Ignition ASTM D6307;
- ODOT TM323 (Per Each Temperature)
- Softening Point of Bitumen (Ring-and-Ball) ASTM D36
- Asphaltic Concrete Mix Design Superpave Verification Set
- (VMA, VFA, Bulk Density) AASHTO T312
Asphaltic Concrete Testing
NTI’s in-house laboratory has been inspected and approved by the Oregon Building Officials Association (OBOA), the City of Portland Bureau of Development Services (COP-BDS), the American Association for Laboratory Accreditation (A2LA Scope of Accreditation), the Washington Association of Building Officials (WABO), the Oregon Department of Transportation (ODOT), and the U.S. Army Corps of Engineers (USACE).
Asphaltic Concrete Testing
- Asphaltic Concrete Mix Design
- Core Density and Thickness ASTM D2726/D1188
- Theoretical Maximum Specific Gravity ASTM D2041; AASHTO T209
- Oil Content/Gradation Ignition ASTM D6307; AASHTO T308
- Oil Content Calibration Ignition ASTM D6307;
- ODOT TM323 (Per Each Temperature)
- Softening Point of Bitumen (Ring-and-Ball) ASTM D36
- Asphaltic Concrete Mix Design Superpave Verification Set
- (VMA, VFA, Bulk Density) AASHTO T312
