Where is aggregate gradation documented?

Aggregate gradation is a critical aspect in evaluating the quality and suitability of aggregates for concrete production. It refers to the distribution of different particle sizes within a given sample of aggregate. The Aggregate Test Report is specifically designed to provide comprehensive details regarding the characteristics of the aggregate, which includes its gradation.

This report typically includes test results that are determined through sieve analysis, measuring how much of the aggregates fall into various size categories. This documentation is crucial for ensuring that the aggregate meets the required specifications for the intended use, thus influencing the performance of the concrete in structural applications.

The other options focus on different aspects of concrete production or management processes. The Batching Log documents the amounts of materials used in the mixing process, the Quality Control Report summarizes overall quality metrics and compliance with standards, while the Delivery Confirmation ensures that delivered materials match the order specifications but does not detail the gradation of aggregates. These documents may all be important in their respective contexts, but they do not specifically address gradation in detail as the Aggregate Test Report does.