Ingredient materials for concrete are managed to maintain their characteristics.
The production facility has the capability of producing concrete in cold weather.
The batching systems in operation are defined and measuring devices are verified for accuracy at stated frequencies.
The batching systems are capable of accurately batching concrete without interference.
The batching process complies with the required tolerances stated in industry standards.
There are systems in place and operational to account for aggregate moisture when batching concrete.
There are systems in place and operational to manage the required slump and consistency of concrete.
Production facilities with a plant mixer (central mixing plant) is of adequate condition to produce uniformly mixed concrete.
The production facility issues a delivery ticket that conforms to the mandatory reporting requirements of ASTM C 94.
Evaluates the recording capabilities for batched materials at the concrete plant and states such on the certificate.
That 90% of the delivery fleet operating from the plant maintain current certification.
The delivery fleet has the ability, via a visual inspection, to produce uniformly mixed concrete and has necessary devices in proper operating condition.
Requires attestation to the completeness of the inspection by a licensed professional engineer.
Requires statement by a company official that the accuracy of measuring devices will be maintained in conformance for the duration of the certification.
Inspectors and their assistants have to go through a qualification process and be approved by NRMCA to conduct inspections for this program. The qualification process requires a thorough reading of the plant inspectors guide followed by answering a series of questions, submission of a statement of qualifications and signing a pledge.
