Florida DOT Concrete Batchman/Operator Practice Exam

The acceptance of pozzolans or slag at the plant must be based upon what documentation?

1. Manufacturer's report

2. Delivery ticket and mill certificate

3. Quality assurance manual

4. Supplier invoice

The correct answer is: Delivery ticket and mill certificate

The acceptance of pozzolans or slag at the plant is predicated on the delivery ticket and mill certificate. The delivery ticket provides essential information regarding the material, including the quantity delivered, the type of material, and confirmation of delivery. Meanwhile, the mill certificate serves as a vital document that ensures the material meets the specified physical and chemical properties established by standards or specifications. It often includes test results and other data pertinent to the quality and suitability of the pozzolans or slag for use in concrete mixtures. While a manufacturer’s report may offer insights into the capabilities and characteristics of the material, and a quality assurance manual provides guidelines for general quality practices, these do not replace the specific, traceable documentation necessary on delivery to confirm that the received materials comply with established standards. A supplier invoice, while useful for accounting and verification of the purchase and payment, does not contain quality details or certification needed for material acceptance. Hence, the combination of the delivery ticket and mill certificate is essential for ensuring that the materials conform to the required standards before they are utilized in concrete production.