NIGP 15016: Curing Mixtures, All Types (for Curing Concrete)

NIGP 15016 Curing Mixtures, All Types (For Curing Concrete), an Item code, describes materials state and local governments procure to cure freshly placed concrete—though recent solicitations under this code show minimal direct demand for curing compounds and instead reveal the code capturing broader concrete delivery and installation work where curing is embedded in larger construction scopes. State and local buyers soliciting under this code include cities (Santa Cruz, Jackson, Plant City, Palo Alto, Bradenton, Fairburn, Norwalk), counties (Volusia, Orange, Ventura, Deschutes, Portage, Rockdale, Sarasota), water districts, and school districts. Representative recent work spans ready-mix concrete supply contracts (City of Jackson RFP for continuous delivery services with Davis-Bacon compliance; City of Plant City IFB for as-needed ready-mix concrete across multiple departments; Volusia County ITB for ready-mix concrete in five grades plus flowable fill, bid due April 23, 2026 at 3:00 p.m. EST), concrete installation projects (City of Santa Cruz IFB for concrete pad installation at Fire Station #3, including subgrade prep, formwork, rebar, and finishing to support 55,000-pound fire apparatus, bid due July 29, 2026), sidewalk and accessibility work (Orange County Florida IFB for ADA Pedestrian Safety Improvement Program with estimated cost of $6,255,475 covering curb ramps and concrete sidewalk installation, sealed bids due May 7, 2026), and specialty concrete repairs (Deschutes County ITB for primary clarifier rehabilitation with engineer's estimate of $808,800 to $1,213,200, bid due July 30, 2026).

Geographic activity concentrates in Florida (Orange County, Volusia County, Sarasota County, Plant City, Bradenton), California (Santa Cruz, Ventura, Palo Alto), and scattered Midwest and Southeast jurisdictions (Wisconsin, Connecticut, Georgia, Michigan, Oregon). Most recent-opportunity solicitations treat concrete as a material input within larger construction or infrastructure projects rather than as standalone curing-compound procurement; concrete supply contracts and site-specific installation work dominate the recent record. Issuing bodies range from city public works departments and county highway offices to water agencies and special districts, with repeat activity in municipal infrastructure maintenance and ADA compliance projects. Set-asides and preferences vary by jurisdiction—Santa Cruz applies 2 percent and 4 percent local business preferences; Orange County Florida offers 3 percent local preference with an additional 2 percent for subcontractor participation; Connecticut projects require prevailing wage and 25 percent small and minority business enterprise subcontracting goals. Prequalification commonly requires contractor licenses, insurance documentation, performance history with three references, Davis-Bacon compliance where federal funds apply, and demonstrated capacity for timely delivery. Award methodology typically favors lowest responsive and responsible bidders; multi-year terms with renewal options are standard for supply contracts.