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 Lab Certificate #3087.01 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 Lab Certificate #3087.01 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
