ASTM-D6780 2005

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D6780-05 Standard Test Method for Water Content and Density of Soil in Place by Time Domain Reflectometry (TDR)

Published By	Publication Date	Number of Pages
ASTM	2005	13

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Categories: 13.080.20 - Physical properties of soils, ASTM

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Description

1.1 This test method may be used to determine the water content of soils and the in-place density of soils using a TDR apparatus.

1.2 This test method applies to soils that have 30 % or less by weight of their particles retained on the 19.0-mm ( 3/4-in.) sieve.

1.3 This test method is suitable for use as a means of acceptance for compacted fill or embankments.

1.4 This test method may not be suitable for organic and highly plastic soils.

1.5 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D 6026.

1.5.1 The method used to specify how data are collected, calculated, or recorded in this standard is not directly related to the accuracy to which the data can be applied in design or other uses, or both. How one applies the results obtained using this standard is beyond its scope.

1.6 Two alternative procedures are provided.

1.6.1 Procedure A involves two tests in the field, an in-place test and a test in a mold containing material excavated from the in-place test location. The apparent dielectric constant is determined in both tests.

1.6.2 Procedure B involves only an in-place test by incorporating a bulk electrical conductivity in addition to the apparent dielectric constant.

1.7 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. For additional information consult ASTM SI 10

1,8 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology
2	Summary of Test Method FIG. 1
3	Significance and Use Interferences Apparatus
4	Preparation of Apparatus Calibration and Standardization FIG. 2 TABLE 1
5	Procedure FIG. 3
6	FIG. 4 TABLE 2 FIG. 5
7	Calculation or Interpretation of Results FIG. 6 FIG. 7 FIG. 8
8	Report
9	Precision and Bias Keywords A1. VOLUME OF CYLINDRICAL MOLD A1.1 Scope A1.2 Apparatus A1.3 Precautions A1.4 Procedure TABLE A1.1
10	A1.5 Comparison of Results A2. DETERMINATION OF PARAMETERS a AND b A2.1 Scope A2.2 Apparatus A2.3 Precautions A2.4 Procedure
11	A2.5 Calculation A3. DETERMINATION OF PARAMETERS a, b, c, d, f, AND g A3.1 Scope A3.2 Apparatus A3.3 Precautions A3.4 Procedure
12	A3.5 Calculations REFERENCES

Additional information

Standard Title	D6780-05 Standard Test Method for Water Content and Density of Soil in Place by Time Domain Reflectometry (TDR)
Published Code	ASTM
Publication Date	2005
Pages Count	13
ICS Codes	13.080.20 - Physical properties of soils

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ASTM-D6780 2005

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