TTL Testing & Drilling Services
Construction Quality Control Testing & Inspection
TTL Testing & Drilling was born of a merger between TTL Associates, Inc. and CT Constulants, Inc. The expertise and unparalleled service established in 1927 as Toledo Testing Laboratory will continue as TTL Testing & Drilling. We are a full-service materials testing and drilling firm serving local, regional, and federal clients across the country.
Site Soil Testing
- Monitoring structural fill
- Relative density
- Soil/aggregate compaction
- Soil bearing for shallow foundations
TTL laboratories are AASHTO certified with state-of-the-art equipment for testing soils, concrete, masonry, asphalt, and aggregates.
Concrete Testing
- Bridge decks, piers, and abutments
- Buildings (foundations, floors, and walls)
- Roadways, curbs, and sidewalks
Deep Foundation Inspections
Asphalt Testing
- Extraction, gradation, hot bin analysis
- Marshall mix design and density
- Performance grade binder testing
- Specific gravity of compacted mix
- Superpave mix design
- Auger cast pile
- Caisson inspections
- Pile driving
What we offer
Our expertise
TTL’s Construction Quality Control Testing and Inspection engineers and managers routinely develop quality control programs for transportation and building projects that assure quality.
AASHTO Certified
TTL laboratories are AASHTO Certified with state-of-the-art equipment for testing soils, concrete, masonry, asphalt, and aggregates.
Why it’s important
Construction quality assurance oversight is crucial to ensure a geotechnical feature is successfully completed per the design specifications. TTL provides these services, as well as embankment material selection and compaction, drainage system installation, anchor load tests, and observation of retention system installation.
Project Highlight
Client: United States Air Force
The original runways were 2.6 miles and 1.8 miles long and were completely removed. Full-depth replacements included associated ramps, taxiways, and both concrete and asphalt concrete pavement sections.
All activities were performed while the other runway remained active. Our services included soil compaction testing, airfield lighting electrical inspection, soil classification testing, soil-cement mix designs, concrete mix designs, and asphalt mix designs.
All testing and reporting procedures followed the United States Air Force specifications for Airfield Pavements. We also established a government and USACE-validated on-site laboratory testing facility. Concrete mix designs met stringent airfield pavement specifications. Concrete placements consisting of 2,000 cy – 4,000 cy per shift were routinely performed to complete the 250,000 cy of total concrete.
