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Plant and Truck Certification Program

The Plant Inspector's Guide ensures the auditing

of the following items during plant inspection:

  • 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 interferences.

  • 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.





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