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Sioux Falls, South Dakota
Construction Materials Testing in Sioux Falls, SD
Sioux Falls construction east of the river works glacial till and lake clays; west, expansive Pierre Shale runs the show. Compaction, moisture, gradation, and strength testing keeps Sioux Falls work on specification, documented the way South Dakota reviewers and lenders expect. Nuclear gauge crews verify Sioux Falls lifts in about a minute each, which is how SD claims get prevented, not litigated. Our Sioux Falls coverage is built around defined scopes and honest travel, coordinated with South Dakota licensed professionals as each project demands.
- Fresh concrete field testing: sampling (ASTM C172), slump (C143), air content by pressure and volumetric methods (C231, C173), unit weight and yield (C138), temperature (C1064), and cylinder and beam casting (C31)
- Hardened concrete laboratory testing: compressive strength of cylinders (ASTM C39) with unbonded caps (C1231), flexural strength of beams (C78), drilled cores (C42), and petrographic examination (C856), cured per ASTM C511
- Aggregate testing: sampling (ASTM D75), sieve analysis (C136), minus No. 200 by washing (C117), coarse and fine specific gravity and absorption (C127, C128), unit weight and voids (C29), LA abrasion (C131), and stockpile moisture (C566)
- Soil compaction and earthwork: standard and modified Proctor (ASTM D698, D1557), soil-cement moisture-density (D558), oversize correction (D4718), and in-place density by nuclear gauge (D6938)
- Soil classification and index testing: sieve and hydrometer gradation (ASTM D6913, D7928, D422), fines content (D1140), Atterberg limits (D4318), moisture content (D2216), specific gravity (D854), and USCS classification (D2487)
ASTM C31ASTM C39ASTM C78ASTM C138ASTM C143ASTM C172ASTM C173ASTM C231
- Dispatch
- Minneapolis, MN regional hub (196 mi)
- Serving
- Sioux Falls and the surrounding SD area — Rapid City, Aberdeen, Brookings
- Coverage
- South Dakota statewide
- Reporting
- Reviewed and issued under a documented quality system
- Call us
- (832) 464-8334
FAQ · Sioux Falls
How fast can a technician be on site in Sioux Falls?
Sioux Falls work is dispatched through our Minneapolis, MN regional hub. Scheduled visits are set up by phone at (832) 464-8334; multi-day placements and full-time project assignments are scheduled through a proposal request.
Do you provide sealed reports?
Test reports are reviewed and issued under our quality system, with engineer review available where the project specification or jurisdiction requires it.
Which ASTM test methods do you perform?
Our construction materials testing scope covers concrete (ASTM C31, C39, C78, C138, C143, C172, C173, C231, C1064, C1231), aggregate (ASTM C29, C117, C127, C128, C131, C136, C566, D75), and soils (ASTM D698, D1557, D558, D854, D1140, D2216, D2487, D4318, D4718, D6913, D6938, D7928, G51, G57, G187). The full list with titles is on this page, and each designation links to a plain-language explainer.
Can you test to the specific ASTM edition my specification references?
Yes. Testing is performed to the edition referenced by your project specification. Where a specification cites a withdrawn method such as ASTM D422 or D421, we run it as written and can run the current replacement, D6913 and D7928, alongside it.
Do you do soil corrosivity testing for MSE wall backfill?
Yes. We run the electrochemical backfill package — pH by ASTM G51, resistivity by ASTM G187 soil box and ASTM G57 field method, with chlorides and sulfates — and report results against the specification limits for metallic and geosynthetic reinforcement.
Hiring: we staff this work locally. Field technician openings in Sioux Falls · all positions.
Scheduling & proposals
Need construction materials testing in Sioux Falls?
Call for same-day dispatch questions, or send project documents for a written proposal.