Trimat has over 10 years experience designing, inspecting and testing asphalt and concrete. We have been engaged with projects ranging from residential driveways to international airport runways across North Carolina and the southeast. Trimat is committed to delivering quality designs, while ensuring that they meet and exceed the testing standards set forth by state agencies.
Asphalt Mix Designs
Full Asphalt Mix Designs performed in house from start to finish including aggregate property testing and submittals to DOT’s or Contracting Engineers.
P401 Asphalt Designs
Superpave Asphalt Mix Designs
Warm Mix Asphalt Mix Designs
Marshall Asphalt Mix Designs
Recycled Asphalt Mix Designs
SMA (Stone Matrix Asphalt) Mix Designs
Concrete Mix Designs for Roadways
P501 Concrete Mix Designs
Trimat's Raleigh Laboratory meets ASTM D3666 for FAA/NAVFAC mix designs.
Laser Inertial Profiling - ASTM E950 & ALDOT 448-12
Trimat Materials Testing now has the capability to provide pavement smoothness testing utilizing the Ames 8200 High Speed Laser profiler equipped with dual 3 kHz RoLine texture lasers. This device has the ability to calculate Profile Index (PI), International Roughness Index (IRI), Half-car Roughness Index (HRI), Ride Quality Index (RQI), and Ride Number (RN).
Trimat is now certified with the State of Alabama and our device and operators meet ALDOT 448-12.
The RoLine 3kHz lasers, built by LMI Selcom features include:
- Best choice for use on ground or longitudinally tined concrete surfaces
- Reduces inflated IRI and PI values caused by pavement texture
- Bridges transverse and longitudinal joints; and reduces their effect on profile measurements
- Better profiler repeatability on textured surfaces, meets ASTM E 950
- Currently in use for QC/QA testing by state DOT’s as well as paving contractors
North Carolina is in the process of moving from the current Hearne Straightedge for acceptance to this more advanced technology and Trimat can provide this service for any NCDOT project. We can arrive onsite at anytime during the construction process, and within a few hours complete our testing. This device can be used under traffic with no adverse effects to the traveling public, or used on new construction to monitor smoothness so any corrections can be made if necessary.
The Ames 8200 meets or exceeds ASTM E950 Class 1 profiler specifications, and AASHTO PP 51-02.
General Pavement Analysis
Pavement Condition Survey (PCS)
Forensic inspection is provided upon request for professional evaluation of existing pavement exhibiting various forms of distress, including any necessary sampling or testing required.
Performance testing services available include accelerated distress testing using the Hamburg loaded wheel method as well as determination of the dynamic modulus and flow number with the simple performance test (previously known as the asphalt mix performance test, or AMPT).
US-70 Goldsboro Bypass
After almost 10 years of construction, the Goldsboro bypass will open on Friday May 27th, 2016. Trimat performed laser profiling for this entire project, 20 miles! If you use this road and enjoy the ride, you can thank the fine paving contractors, ST Wooten and Barnhill, and give us a little credit too for ensuring a smooth pavement. Read the story below.
I-440 Fortify Laser Profile Testing
Trimat has contracted with Granite Construction to provide laser profile testing for this high profile project on the Raleigh Beltline.
Town of Cary ST 1236 Pavement Evaluation
Trimat provided technicians and project professionals for specific roadways in Cary that needed further investigations. The purpose of this project was to determine future maintenance needs for the Town. Trimat performed onsite testing, including pavement coring, soil sampling, and lab testing of the field samples.
Triangle Expressway (Triex) and Western Wake Freeway (WWF) Pavement Warranty Evaluation
Trimat is in the process of evaluating the asphalt and concrete pavements on the Triangle Expressway and Western Wake Freeway in Wake County, NC. These evaluations are performed to determine if the projects are performing well and adhere to the three year warranty provided to the NCTA by the design build contractors. The three projects (Triex, Phase II and Phase III of WWF) are evaluated annually with a report provided to the NCTA.
NCDOT Pavement Condition Survey
Trimat is supplying a team of technicians to perform Pavement Condition Surveys (PCS) for the NCDOT. Our technicians are evaluating approximately 8,000 miles of state roads each year. The results are uploaded to the NCDOT and used for future maintenance and construction planning.
Asphalt/Concrete Mix Designs
Trimat has designed hundreds of asphalt and concrete mix designs that are being utilized on highways and airports in and around North Carolina. Our staff offers the most extensive experience for designing, testing, and troubleshooting all type of asphalt and concrete designs.