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Cass County, North Dakota
Construction Materials Testing in Cass County, ND
Concrete, soil, and aggregate testing in Cass County, North Dakota — fresh concrete tests and cylinder breaks, Proctor and nuclear density, gradation, Atterberg limits, and soil corrosivity — by ACI- and NICET-certified technicians, with results reviewed and issued under a documented quality system.
- Dispatched from
- Minneapolis, MN regional hub · project-based mobilization
- Lead time
- Set in the proposal, with mobilization planned around your pour and earthwork schedule
- Laboratory
- Sugar Land, TX laboratory under chain of custody, or a mobile laboratory for large projects
- Reporting
- Reviewed and issued under a documented quality system; formatted for owner, engineer, and building-official review
- Serving
- Cass County, ND — Fargo, Bismarck, Grand Forks
- Coverage
- North Dakota statewide · 27 regional hubs
- Technicians
- ACI Grade I · NICET CMT · ICC special inspectors
- Call us
- (346) 420-5425
Scope
What we test in Cass County
Concrete testing services
Fresh concrete sampled and tested at the pour — slump, air content, unit weight, and temperature — with cylinders and beams cast on site and broken in the laboratory on the schedule your specification calls for.
ASTM C172ASTM C143ASTM C231ASTM C173ASTM C138ASTM C1064ASTM C31ASTM C39
Aggregate testing services
Gradation, fines content, specific gravity and absorption, unit weight, abrasion resistance, and stockpile moisture for concrete, base course, and backfill aggregates.
ASTM D75ASTM C136ASTM C117ASTM C127ASTM C128ASTM C29ASTM C131ASTM C566
Soil compaction and density testing
Standard and modified Proctor curves in the laboratory and in-place density by nuclear gauge on every lift, so fill, subgrade, and trench backfill are documented against the specified percent compaction.
Soil classification and index testing
Sieve and hydrometer gradation, Atterberg limits, moisture content, specific gravity, and USCS classification for earthwork acceptance, select-fill verification, and geotechnical reports.
ASTM D6913ASTM D7928ASTM D1140ASTM D4318ASTM D2216ASTM D854ASTM D2487
Soil corrosivity testing
pH and electrical resistivity of backfill for MSE walls, pipelines, and buried structures, reported against the specification limits for metallic and geosynthetic reinforcement.
Special inspection (IBC Chapter 17)
ICC-certified special inspectors for reinforced concrete and soils, reporting to the building official alongside the materials test results, so one agency covers both requirements.
Full scope, standards list, and pricing basis: Construction Materials Testing.
Local conditions
Construction materials testing conditions in Cass County
Cass County sits in the heart of the Red River Valley, where flat glacial lake-bed soils — predominantly silty and clayey fine-grained deposits — present real geotechnical challenges for anyone pouring footings, placing fill, or designing pavement sections. Seasonal freeze-thaw cycles are severe, and North Dakota's climate compresses the outdoor construction window, making every pour and every compaction lift count. Getting the materials right the first time is not optional; it is how projects stay on schedule and out of disputes. Our firm dispatches certified field technicians from our Minneapolis regional hub to provide ASTM-compliant testing of concrete, soil, and aggregate across Cass County. Fresh concrete testing, cylinder fabrication and compression breaks, Proctor compaction curves, nuclear density, aggregate gradation, soil classification, and soil corrosivity — all documented under a quality system that produces defensible, specification-ready reports. Coverage is scheduled and project-based; contact us early to coordinate mobilization for your project timeline.
The fine-grained, high-plasticity soils common to the Red River Valley glacial plain are sensitive to moisture content during compaction, making Proctor-based density control (ASTM D698 / D1557) especially important for embankment and subgrade work. North Dakota's extended frost season also means concrete placement and curing practices must address low-temperature requirements per ACI 306 guidance, and early-age cylinder protection in the field is a practical concern on nearly every autumn or spring pour.
FAQ · Cass County
The soils on my Cass County site are highly plastic clays. What classification testing do you run, and why does it matter for my project?
We perform grain-size analysis (ASTM D6913 / D422), Atterberg limits (ASTM D4318), and USCS or AASHTO classification. In the Red River Valley, high liquid-limit clays are common; knowing the plasticity index directly affects subgrade design, acceptable fill specifications, and the moisture window for compaction. Classification data gives your geotechnical engineer or project designer the baseline they need to write or verify earthwork specifications.
How do you handle concrete testing during cold-weather pours in North Dakota?
Our technicians follow ASTM C31 procedures for cold-weather cylinder fabrication, including insulated curing boxes or blankets in the field when ambient or concrete temperatures approach or fall below 40°F. Fresh concrete temperature is recorded per ASTM C1064. ACI 306R guidance informs our field documentation so that the reported cure conditions are defensible if early-strength or scheduling questions arise later.
What compaction testing frequency should I expect for a highway or commercial site in Cass County under NDDOT or local agency specs?
Testing frequency is ultimately set by the governing specification — NDDOT standard specifications or local jurisdiction requirements — not our firm. Typically, nuclear density testing per ASTM D6938 is performed at specified intervals per lift and per zone. We document each test location, lift thickness, moisture, and percent compaction relative to the applicable Proctor standard (ASTM D698 or D1557) and report results in the format your specification requires.
How fast can a technician be on site in Cass County?
Cass County work is dispatched through our Minneapolis, MN regional hub. Scheduled visits are set up by phone at (346) 420-5425; multi-day placements and full-time project assignments are scheduled through a proposal request.
Which office covers materials testing in Cass County, ND?
Field work in Cass County is dispatched through the Minneapolis, MN regional hub, about 214 miles away. Laboratory testing is performed in Sugar Land, TX under chain of custody, or in a mobile laboratory mobilized to large Cass County projects.
Are the technicians you send to Cass County certified?
Yes. Concrete technicians hold ACI Concrete Field Testing Technician Grade I; soils and laboratory technicians hold NICET Construction Materials Testing certifications; special inspection is performed by ICC-certified special inspectors. Where North Dakota agencies or owners require state-specific certifications, those are confirmed in the proposal.
Scheduling & proposals
Need construction materials testing in Cass County?
Call to schedule a technician, or send project documents for a written proposal.