UNSPSC 41113828: Sand density cone apparatus

A tester that measures the unit weight of earth with the maximum particle radius of 5cm or less under the sand replacement method at the site.

UNSPSC 41113828 Sand density cone apparatus, a Commodity code, encompasses soil testing and materials inspection equipment and services that state and local governments procure for construction quality assurance, geotechnical investigation, and infrastructure validation. Recent solicitations show state and local agencies buying cone penetrometer test (CPT) systems, construction materials testing and inspection services for building projects, and laboratory testing for utility infrastructure. Issuing bodies include state transportation departments, municipalities, county flood control districts, and utility authorities. The work spans truck-mounted CPT equipment with integrated data acquisition systems, on-site soil compaction and concrete strength testing during active construction, electrical insulating oil sampling and laboratory analysis for power equipment, and comprehensive materials inspection across structural steel, masonry, welded connections, and fire protection systems. Vendors typically must hold relevant professional certifications (ACI, AWS, ICC, ASNT, PE licensure), maintain insurance including general liability and errors-and-omissions coverage, and demonstrate prior deliveries to public agencies or experience on comparable infrastructure projects.

Recent activity appears concentrated in Florida, Michigan, and Texas. The Michigan Department of Transportation issued RFP 5912600000022681 on June 26, 2026, requesting proposals for a truck-mounted Cone Penetrometer Test sounding unit with response due July 16, 2026, specifying a 20-ton system with integrated hydraulic push/pull capacity, dual data acquisition systems, and CPT rods with soil sampling and dilatometer equipment, with award on a firm-fixed-price basis to the low responsive bidder meeting pass/fail criteria and delivery to Lansing by August 20, 2026. The Town of Waterford, Connecticut, posted RFP 26009 on April 21, 2026, for materials testing and special inspection services on a new 10,000-square-foot fire station with response due May 5, 2026, requiring certified personnel for concrete, steel, masonry, and fire protection inspections throughout construction with unit-price fixed costs and monthly interim reports. The Harris County Flood Control District issued RFSQ 260032 on January 30, 2026, for on-call construction materials engineering and testing services supporting stormwater and channel projects, with response due March 2, 2026 and award to the most qualified firm enrolled in a five-year registry; the District emphasizes MWBE participation goals and compliance with Texas residency and worksite safety requirements.