ASTM RR:C09-1045 PDF Download

The ASTM RR:C09-1045 standard is a guideline for the preparation and molding of roller-compacted concrete (RCC) samples in cylindrical molds. The purpose of this standard is to provide a consistent and reliable method for producing RCC specimens using a vibrating hammer.

The standard outlines the equipment and materials required for the process, including the vibrating hammer, mold, and concrete mix. It specifies the dimensions and tolerances for the mold, which must conform to ASTM standards. The standard also provides instructions on the preparation of the concrete mix, including the required proportions of ingredients and the mixing procedure.

The molding process involves filling the cylindrical mold with the prepared RCC mix and compacting it using the vibrating hammer. The standard provides detailed instructions on the placement and compaction of the concrete, including the number of layers and the duration of vibration. It also specifies the minimum number of specimens that should be molded for testing purposes.

The standard emphasizes the importance of adhering to specific procedures to ensure the accuracy and repeatability of the results. It discusses potential sources of error and provides recommendations for minimizing their impact. It also highlights the need for proper curing and handling of the molded specimens before testing.