AASHTO R60
Full Name
AASHTO R60 – Standard Practice for Sampling Freshly Mixed Concrete
Scope
AASHTO R60 is a standard practice that outlines the procedures for obtaining representative samples of freshly mixed concrete as delivered to the project site. This standardized method ensures that the samples collected accurately reflect the properties of the concrete being used in construction, enabling reliable testing and quality control.
Key aspects of AASHTO R60:
- Scope: the standard covers sampling from various types of concrete delivery equipment, including stationary mixers, paving mixers, truck mixers, and other agitating or non-agitating equipment. It also addresses sampling from continuous mixing equipment.
- Sampling procedure: AASHTO R60 provides detailed instructions for the sampling process, including:
- Timing: when to take samples during the discharge process.
- Location: where to collect samples from the concrete stream or batch.
- Equipment: the types of containers and tools to use for sampling.
- Safety precautions: measures to ensure the safety of personnel during sampling.
- Sample handling: The standard also addresses the proper handling of the collected samples to maintain their representativeness and prevent contamination or alteration.
Significance of AASHTO R60:
- Quality assurance: by adhering to AASHTO R60, construction teams can ensure that the samples collected accurately represent the quality of the concrete being used in the project. This enables reliable testing to verify that the concrete meets the specified requirements and performance standards.
- Acceptance testing: samples collected according to AASHTO R60 are used for acceptance testing, which verifies that the concrete delivered to the site complies with the project specifications.
- Standardization: the standard provides a uniform and consistent method for sampling freshly mixed concrete, ensuring fair comparison of test results across different projects and laboratories.
AASHTO R60 Accredited Laboratory
Applied Testing & Geosciences, LLC is accredited for performing tests using the AASHTO R60 standard.
Our laboratory adheres to AASHTO R60 and other relevant standards to ensure the accuracy and reliability of our concrete testing services. We use proper sampling techniques and equipment to collect representative samples of freshly mixed concrete, enabling us to provide our clients with accurate and reliable test results for their construction projects.
Contact us for more information.
Resources
Keywords
concrete; sampling; freshly mixed concrete; test specimen; representative sample; truck mixer; stationary mixer; paving mixer; agitating equipment; non-agitating equipment; composite sample