Concrete Products covers the issues that attract producers of ready mixed and manufactured concrete focusing on equipment and material technology, market development and management topics.
Issue link: https://cement.epubxp.com/i/64524
The first CIB-certified producer, Jenna Concrete is positioned to influence mix designs for future public and private jobs. Leading up to the certification, the Bronx producer served as the primary ready mixed supplier on the 260,000-yd. Croton Water Filtration Plant, with 290 million gallon/day capacity. At peak schedule of the main 700- x 600-ft. structure, Jenna Concrete was delivering 14,000 yd./month, a volume nearly unheard of for a New York City site. extra special care be given to every phase of production, delivery and placement. The CIB Certification Program ensures that producers are equipped to meet quality control and quality assurance challenges as specification of premium concrete mixes increases." The engineering and construction communities have welcomed and embraced this approach to concrete production, he adds. PROGRAM REQUIREMENTS CIB Producer Certification builds on the NRMCA's Quality Control Manual, ready mixed plant certification, and P2P (Prescriptive-to- Performance) initiative. Producers need to commit to a) meeting strict, measurable stan- dards and making the necessary investments to formally train and test personnel; and, b) upgrading plant and fleet equipment for strict batching tolerances and applicable WWW.CONCRETEPRODUCTS.COM NRMCA and NYSDOT criteria. By testing, monitoring and documenting raw materials, then maintaining statistical data, a producer gains—and can truly prove—it really knows its concrete. In order to become CIB certified, a producer must also employ a full-time manager to oversee all phases of quality control and assurance. The QC manager must be an NRMCA Level 3 Tech- nologist and hold ACI Concrete Construction Special Inspector certification, among other credentials. All producer testing lab personnel are required to be ACI Laboratory Certified Technicians Grades I & II. Most importantly, CIB-certified producers must have their own in-house lab—and achieve AASHTO Accreditation Program Lab- oratory (AAP) certification for concrete and aggregate testing—to perform cylinder breaks plus other concrete specimen and raw materials testing. Producers must also com- ply with the 28 specific items on the CIB's Quality Control Checklist covering materials testing, acceptance and storage; plant equipment signage and maintenance; and, record-keeping of certification, accredita- tion, and testing regimen and results. Once the producer's lab has been AAP cer- tified, compliance with the CIB's QC/QA Plan–Minimum Standards requirements and 28-point checklist must be independently verified. CIB's independent auditor, Con- crete Engineering Group, LLC of North- brook, Ill., then inspects plants and labs for conformance and compliance. The Concrete Engineering Group audit independently verifies that the concrete producer has met all of the CIB's requirements; a report and recommendation to the CIB Certification Committee follows. MAY 2012 | 25