ASTM D4253 PDF

ASTM D Standard Practice for Classification of Soils for Engineering ASTM D Standard Test Methods for Maximum Index Density and Unit Weight. GeoTesting Express is a provider of Soil Testing Services – ASTM D, Standard Test Methods for Maximum Index Density and Unit Weight of Soils Using a. Standard Test Method for Maximum Index Density and Unit Weight of Soil Using Vibratory Table.

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ASTM D Standard

However, the engineering properties, such as strength, compressibility, and permeability of a given soil, compacted by various methods to a given state of compactness can vary considerably.

It is scientifically undesirable to combine the use of two separate sets of inch-pound units within a single standard. In this system, the pound lbf represents a unit of force weight. The quality of the result produced by this standard is dependent on the competence of the personnel performing it, and the suitability of the equipment and wstm used. Referenced Documents purchase separately The documents listed below are referenced within asm subject standard but are not provided as part of the standard.

After the density has been determined, the unit weight is calculated in SI or inch-pound units, or both. 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. In this standard density is given only in SI units. Therefore, test apparatus dimensions and mass given in inch-pound units are regarded as the standard. It is scientifically undesirable to combine the use of two separate sets of inch-pound units within a single standard.

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Therefore, considerable engineering judgment must be used in relating the engineering properties of soil to the state of compactness.

Active view current version of standard. In the inch-pound system, it is asmt to assume that 1 lbf is equal to 1 lbm. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Link to Active This link will always route to the current Active version of the standard. Historical Version s – view previous versions of standard. However, balances or scales measure mass; and weight must be calculated. After the density has been determined, the unit weight is calculated in SI or inch-pound units, or both. In this system, the pound lbf represents a unit of force weight.

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This implicitly combines two separate systems of units; that is, the absolute system and the gravitational system. In the inch-pound system, it is common to assume aastm 1 lbf is equal to 1 lbm. Therefore, test apparatus dimensions and mass given in inch-pound units are regarded as the standard. In addition, they are representative of the significant digits that generally should be retained.

See Section 3 for descriptions of terms. Density is mass per unit volume whereas unit weight is force per unit volume. Link to Active This link will always route to the current Active version of the standard.

ASTM D, Test equipment Controls

While reporting density is not regarded as nonconformance with this standard, unit weights should be calculated and reported since the results may be used to determine force or stress. This implicitly combines two separate systems of units; that is, the absolute system and the gravitational system.

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However, balances or scales measure mass; and weight must be calculated.

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. In addition, there are published data to indicate that these test methods have a high degree of variability. Users of this standard are cautioned that compliance with Practice D does not in itself ensure reliable results.

In this standard density is given only in SI units. This standard has been written using the gravitational system of units when dealing with the inch-pound system.

The adjective “dry before density or unit weight is omitted in the title and remaining portions of this standard to be consistent with the applicable definition given in Section 3 on Terminology. Density is mass per unit volume whereas unit weight is force per unit volume. This standard has been written using the gravitational system of units when dealing with the inch-pound system.

While reporting density is not regarded as nonconformance with this standard, unit weights should be calculated and reported since the results may be used to determine force or stress.

It is beyond the scope of this standard to consider significant digits used in analysis methods for engineering design. Reliable results depend on many factors; Practice D provides atm means of evaluating some of those factors.