ASTM C1040
Full Name
ASTM C1040 – Standard Test Methods for In-Place Density of Unhardened and Hardened Concrete, Including Roller Compacted Concrete, By Nuclear Methods
Scope
The scope of ASTM C1040 outlines the specific application of the standard for measuring concrete density. Here’s a breakdown of the key points:
- Focus: in-place density of concrete.
- Applicable types: the standard covers unhardened concrete (freshly poured), hardened concrete (set and cured), and roller compacted concrete (a specific type of concrete placement).
- Test methods – ASTM C1040 describes two specific test methods utilizing gamma radiation:
- Test Method A – direct transmission: this method involves a source and detector on opposite sides of the concrete to measure the radiation passing through.
- Test Method B – backscatter: this method uses a source and detector on the same side of the concrete to measure the radiation reflected back from the material.
ASTM C1040 Accredited Laboratory
Applied Testing & Geosciences, LLC is accredited for performing tests using the ASTM C1040 standard.
Contact us today to learn more about our testing capabilities and how we can support your business.
Resources
Keywords
in-place density; concrete; gamma radiation; unhardened concrete; hardened concrete; roller compacted concrete; nuclear testing; direct transmission; backscatter; density measurement; gamma source; gamma detector; compton scattering; instrument calibration; reference standard; count rate; moisture content; reinforcing steel; heterogeneity; spatial bias