These cement and concrete standards allow laboratories all over the world to test and evaluate concrete mixtures to ensure their strength and safety. These standards help to identify the various properties of concrete including strength, elasticity, hardness, and workability. List of cement standards and concrete standards developed by ASTM:

3.2 The modulus of elasticity and Poisson's ratio values, applicable within the customary working stress range (0 to 40 % of ultimate concrete strength), are used in sizing of reinforced and nonreinforced structural members, establishing the quantity of reinforcement, and computing stress for observed strains.

ASTM C469 / C469M - 14 Standard Test Method for Static Modulus of Elasticity and Poisson’s Ratio of Concrete in Compression. Active Standard ASTM C469 / C469M Developed by Subcommittee: C09.61. Book of Standards Volume: 04.02

129 行 Young's Modulus or Tensile Modulus alt. Modulus of Elasticity - and Ultimate

685 行 This is a list of ASTM International standards. Standard designations usually consist

ASTM Standards. C31/C31M Practice for ... ASTM C469-94e1, Standard Test Method for Static Modulus of Elasticity and Poisson's Ratio of Concrete in Compression, ASTM International, West Conshohocken, PA, 1994, p>

5.1 This test method is intended primarily for detecting changes in the dynamic modulus of elasticity of laboratory or field test specimens that are undergoing exposure to weathering or other types of potentially deteriorating influences. The test method may also be used to monitor the development of dynamic elastic modulus with increasing maturity of test specimens.

Standard Test Method for Static Modulus of Elasticity and Poisson’s Ratio of Concrete in Compression1 This standard is issued under the ﬁxed designation C469/C469M; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.

scope: 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 E6. The values stated in either SI units or inch-pound units are to be regarded separately as standard.

1. 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.

scope: 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 E6. The values stated in either SI units or inch-pound units are to be regarded separately as standard.

ASTM E2769 - Standard Test Method for Elastic Modulus by Thermomechanical Analysis Using Three-Point Bending and Controlled Rate of Loading: C469/C469M-14 - Standard Test Method for Static Modulus of Elasticity and Poisson’s Ratio of Concrete in Compression: C580-02(2012) - Standard Test Method for Flexural Strength and Modulus of Elasticity ...

Oct 31, 2014 Elastic modulus (Young modulus) can be measured on different types of specimens and materials: concrete cores, cylnders and prisms, cements prisms, etc. Elec...

Modulus of elasticity of concrete (Ec) is defined as the ratio of the applied stress to the corresponding strain. Not only does it demonstrate the ability of concrete to withstand deformation due to applied stress but also its stiffness. In other words, it reflects the ability of concrete to deflect elastically.

The accurate value of elastic modulus of concrete can be estimated using different tests. ASTM C469 (Standard Test Method for Static Modulus of Elasticity and Poisson’s Ratio of Concrete in Compression) can be employed to accurately determine the modulus of elasticity of concrete.

ASTM C469 testing provides a stress to strain ratio value and a ratio of lateral to longitudinal strain for hardened cylindrical concrete at whatever age and curing conditions may be designated. ASTM C469 is a compression test whereby a load is applied with a Constant-Rate of-Traverse (CRT) type machine until a specified stress.

Nov 04, 2018 For the Love of Physics - Walter Lewin - May 16, 2011 - Duration: 1:01:26. Lectures by Walter Lewin. They will make you ♥ Physics. Recommended for you

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. The values stated in inch-pound units are to be regarded as the standard.

The American Concrete Institute. Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete

Unconfined compressive strength and modulus of elasticity of the test mixtures were determined using 4 ×8 in. (100 ×200 mm) cylinder specimens in accordance with ASTM C 39,

Previous research indicates that the concrete modulus of elasticity could be improved by combining 2 (two) concrete mixes using a gradual compacting method. ... accordance with ASTM C469. The test ...

Nov 20, 2018 The data leads to some empirical conclusions regarding an upper limit for modulus mixtures. The results of a large-scale ASTM round robin for modulus of Elasticity are also presented. Category

C 469 Test Method for Static Modulus of Elasticity and Poisson’s Ratio of Concrete in Compres-sion (CRD-C 19) E 177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods (CRD-C 582) 4.2 The modulus of elasticity values obtained will usually be less than moduli derived under rapid load

May 17, 2010 This test shows a concrete compression test performed according to ASTM C469 - Standard Test Method for Static Modulus of Elasticity and Poisson's Ratio of Concrete in Compression To read more ...

Previous research indicates that the concrete modulus of elasticity could be improved by combining 2 (two) concrete mixes using a gradual compacting method. ... accordance with ASTM C469. The test ...

Nov 20, 2018 The data leads to some empirical conclusions regarding an upper limit for modulus mixtures. The results of a large-scale ASTM round robin for modulus of Elasticity are also presented. Category

May 17, 2010 This test shows a concrete compression test performed according to ASTM C469 - Standard Test Method for Static Modulus of Elasticity and Poisson's Ratio of Concrete in Compression To read more ...

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