Get D 4791 - Standard Test Method For Flat Particles Elongated Particles Or Flat And Elongated

This guide provides a comprehensive overview of how to fill out the D 4791 form, aimed at ensuring accurate and consistent results when measuring flat and elongated particles in coarse aggregates. By following these instructions, users can easily navigate the form and understand its components.

Follow the steps to effectively complete the D 4791 form.

1. Click 'Get Form' button to obtain the form and open it in your preferred editor.
2. Begin by entering the identification of the coarse aggregate being tested. Ensure that this information is accurate and up-to-date.
3. Refer to Section 7 for guidance on sampling the coarse aggregate, making sure to adhere to the mass requirements outlined in the FOP for AASHTO T 2.
4. In Section 8, follow the procedures for preparing your sample, including oven drying if necessary and sieving according to FOP for AASHTO T 27/11.
5. Utilize the proportional caliper device as described in the test method to measure each particle's dimensions. Classify the particles as either flat and elongated or not.
6. After classification, calculate the percentages of flat and elongated particles for each sieve size, rounding to the nearest whole number.
7. Compile your findings in a report, ensuring to include all necessary details as indicated in Section 10, such as grading of the aggregate sample and percentages calculated.
8. Finally, save your changes, download the document, print, or share it as necessary to complete your submission.

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