AASHTO R 39-19 PDF Download

The AASHTO R 39-19 standard provides guidelines for the process of creating and curing concrete test specimens in a laboratory setting. The goal of this standard is to ensure that the materials and test conditions are accurately controlled to obtain reliable and consistent results.

The standard emphasizes the importance of following specific procedures to create these test specimens. This includes the accurate measuring of materials, such as cement, aggregates, and water, and the proper mixing and molding techniques. By following these procedures, the standard aims to minimize variations and produce uniform test specimens for accurate testing.

Additionally, the standard emphasizes the need for proper curing of the specimens. Curing refers to the controlled process of maintaining moisture and temperature conditions to allow the concrete to gain strength and develop its desired properties. The standard provides guidelines on the duration and methods of curing to ensure that the test specimens adequately cure and provide reliable test results.