ASTM C469-94e1

Standard Test Method for Static Modulus of Elasticity and Poisson's Ratio of Concrete in Compression

SCOPE
1.1 This test method covers determination of (1) chord modulus of elasticity (Young's) and ( 2) Poisson's ratio of molded concrete cylinders and diamond-drilled concrete cores when under longitudinal compressive stress. Chord modulus of elasticity and Poisson's ratio are defined in Terminology E 6.
1.2 The values stated in inch-pound units are to be regarded as the standard.
1.3 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.

General Information

• Status: Historical
• Publication Date: 14-Mar-1994
• ICS: 91.100.30 - Concrete and concrete products
• Technical Committee: C09 - Concrete and Concrete Aggregates
• Drafting Committee: C09.61 - Testing for Strength

Relations

• Replaces: ASTM C469-94 - Standard Test Method for Static Modulus of Elasticity and Poisson's Ratio of Concrete in Compression
• Effective Date: 15-Mar-1994
• Replaced By: ASTM C469-02 - Standard Test Method for Static Modulus of Elasticity and Poisson's Ratio of Concrete in Compression
• Effective Date: 10-Aug-2002
• Referred By: ASTM D4945-17 - Standard Test Method for High-Strain Dynamic Testing of Deep Foundations
• Effective Date: 15-Mar-1994

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
e1
Designation: C 469 – 94
Standard Test Method for
Static Modulus of Elasticity and Poisson’s Ratio of Concrete
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in Compression
This standard is issued under the fixed designation C 469; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
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e NOTE—Figure number 2 was editorially updated June 2002.
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1. Scope ASTM Test Methods
1.1 This test method covers determination of (1) chord
3. Significance and Use
modulus of elasticity (Young’s) and ( 2) Poisson’s ratio of
3.1 This test method provides a stress to strain ratio value
molded concrete cylinders and diamond-drilled concrete cores
and a ratio of lateral to longitudinal strain for hardened
when under longitudinal compressive stress. Chord modulus of
concrete at whatever age and curing conditions may be
elasticity and Poisson’s ratio are defined in Terminology E 6.
designated.
1.2 The values stated in inch-pound units are to be regarded
3.2 The modulus of elasticity and Poisson’s ratio values,
as the standard.
applicable within the customary working stress range (0 to
1.3 This standard does not purport to address all of the
40 % of ultimate concrete strength), may be used in sizing of
safety concerns, if any, associated with its use. It is the
reinforced and nonreinforced structural members, establishing
responsibility of the user of this standard to establish appro-
the quantity of reinforcement, and computing stress for ob-
priate safety and health practices and determine the applica-
served strains.
bility of regulatory limitations prior to use.
3.3 The modulus of elasticity values obtained will usually
2. Referenced Documents be less than moduli derived under rapid load application
(dynamic or seismic rates, for example), and will usually be
2.1 ASTM Standards:
greater than values under slow load application or extended
C 31 Practice for Making and Curing Concrete Test Speci-
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load duration, other test conditions being the same.
mens in the Field
C 39 Test Method for Compressive Strength of Cylindrical
4. Apparatus
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Concrete Specimens
4.1 Testing Machine—Any type of testing machine capable
C 42 Test Method for Obtaining and Testing Drilled Cores
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of imposing a load at the rate and of the magnitude prescribed
and Sawed Beams of Concrete
in 6.4 may be used. The machine shall conform to the
C 174 Test Method for Measuring Length of Drilled Con-
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requirements of Practices E 4 (Constant-Rate of-Traverse CRT-
crete Cores
Type Testing Machines section). The spherical head and
C 192 Practice for Making and Curing Concrete Test Speci-
2 bearing blocks shall conform to the Apparatus Section of Test
mens in the Laboratory
Method C 39.
C 617 Practice for Capping Cylindrical Concrete Speci-
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2 4.2 Compressometer —For determining the modulus of
mens
2 elasticity a bonded (Note 1) or unbonded sensing device shall
E 4 Practices for Load Verification of Testing Machines
be provided for measuring to the nearest 5 millionths the
E 6 Terminology Relating to Methods of Mechanical Test-
3 average deformation of two diametrically opposite gage lines,
ing
each parallel to the axis, and each centered about midheight of
E 83 Practice for Verification and Classification of Exten-
3 the specimen. The effective length of each gage line shall be
someters
not less than three times the maximum size of the aggregate in
E 177 Practice for Use of the Terms Precision and Bias in
the concrete nor more than two thirds the height of the
specimen; the preferred length of the gage line is one half the
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height of the specimen. Gage points may be embedded in or
This test method is under the jurisdiction of ASTM Committee C09 on
Concrete and Concrete Aggregates and is the direct responsibility of Subcommittee cemented to the specimen, and deformation of the two lines
C09.61 on Testing for Strength.
Current edition approved March 15, 1994. Published July 1994. Originally
published as C469 – 61. Last previous edition C469 – 87a.
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Annual Book of ASTM Standards, Vol 04.02. Copies of working drawings of strain measuring apparatus are available from
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Annual Book of ASTM Standards, Vol 03.01. ASTM International Headquarters. Request adjunct No. ADJC0469.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
C 469
read independently; or a compressometer (such as is shown in
Fig. 1) may be used consisting
...