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ASTM C1040/C1040M-08(2013)
Standard Test Methods for In-Place Density of Unhardened and Hardened Concrete, Including Roller Compacted Concrete, By Nuclear Methods
STANDARD published on 15.11.2013
The information about the standard:
Designation standards: ASTM C1040/C1040M-08(2013)
Note: WITHDRAWN
Publication date standards: 15.11.2013
SKU: NS-9167
The number of pages: 5
Approximate weight : 15 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM
The category - similar standards:
Annotation of standard text ASTM C1040/C1040M-08(2013) :
Keywords:
acceptance testing, backscatter measurement, concrete-density, density, direct transmission measurement, gamma radiation, in-place density, nuclear testing , roller-compacted concrete, ICS Number Code 91.100.30 (Concrete and concrete products)
Additional information
| Significance and Use | |||||||||||||||||
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3.1 These test methods are useful as rapid, nondestructive techniques for the in-place determination of the density of unhardened concrete. The backscatter test method is also useful for the same purpose on hardened concrete. The fundamental assumptions inherent in the test methods are that Compton scattering is the dominant interaction and that the material under test is homogeneous. 3.2 These test methods are suitable for control and for assisting in acceptance testing during construction, for evaluation of concrete quality subsequent to construction, and for research and development. 3.3 Test results may be affected by
reinforcing steel, by the chemical composition of concrete
constituents, and by sample heterogeneity. The variations resulting
from these influences are minimized by instrument design and by the
user's compliance with appropriate sections of the test procedure.
Results of tests by the backscatter test method may also be
affected by the density of underlying material. The backscatter
test method exhibits spatial bias in that the apparatus's
sensitivity to the material under it decreases with distance from
the surface of the concrete.
1.1 These test methods cover the
determination of the in-place density of unhardened and hardened
concrete, including roller compacted concrete, by gamma radiation.
For notes on the nuclear test see Appendix X1.
1.2 Two test methods are described,
as follows:
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