ASTM D 4914 PDF

(38 mm), or when test hole volumes larger than ft3 ( cm 3) are required, Test Method D or D are applicable. It is common practice in the. This standard is issued under the fixed designation D ; the number . 1 These test methods are under the jurisdiction of ASTM Committee D on. Soil and. Standard Test Methods for Density and Unit Weight of Soil and Rock in Place by the Sand Replacement Method in a test Pit.

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ASTM D4914

The procedures used do not consider material variation, purpose for obtaining the data, special purpose studies, or any considerations for the users objectives; it is common practice to increase or reduce significant digits or reported data to be commensurate with these considerations.

It is scientifically undesirable to combine the use of two separate sets of inch-pound aastm within a single standard. This implicitly combines two separate systems of units, that is, the absolute system and the gravimetric system. This implicitly combines two separate systems of units, that is, the awtm system and the gravimetric system.

For Test Methods D and D only, the unit weight determined in the laboratory compaction test may be corrected for larger particle sizes in accordance with, and subject to the limitations of Practice D The values given in parentheses are for information only.

However, for larger sized excavations, Test Method D is preferred.

The accuracy of the test methods may be affected for materials that deform easily or that may undergo volume change adtm the excavated hole from standing or walking near the hole during the test. These asmt methods have been written using inch-pound units gravimetric system where the pound lbf represents a unit of force weight. Test Method A can also be used to determine percent compaction or percent relative density when the maximum particle size present in the in-place material being tested does not exceed the maximum particle size allowed in the laboratory compaction test refer to Test Methods D, D, D, and D This test method has been written using the gravitational system of units when dealing with the inch-pound system.

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This implicitly combines two separate systems of units, that is, the absolute system and the gravitational system. The values stated in each system may not be exact equivalents; therefore each system shall be used independently of the other. S construction control, these test methods are often used as the bases for acceptance of material compacted to a specified density or to a percentage of a c unit weight determined by a standard laboratory test method such as determined from Test Method D or Dsubject to the limitations discussed in 1.

However, conversions are given in the SI system. It is beyond the scope of this standard to consider significant digits used in analytical methods for engineering design. Ast is scientifically undesirable to combine the use of two separate systems within a single standard. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

The accuracy of astmm test methods may be affected for materials that deform easily or that may undergo volume change in the excavated hole from standing or walking near the hole during the test.

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ASTM D Standard

It should also be firm enough not to deform or slough due to the minor pressures exerted in digging the hole and pouring the sand. It should also be firm enough not to deform or slough due to the minor pressures exerted in digging the hole and pouring the sand. In general, the materials tested would have a maximum particle size of 75 to mm 3 to 5 in. 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.

The material from the in-place unit weight test is physically divided into a control fraction and an oversize fraction based on a designated sieve size.

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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. While the equipment illustrated in these test methods is used for volumes less than 0. 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. The accuracy of the test methods may be affected for materials that deform easily or that may undergo volume change in the excavated hole from standing or walking near the hole during the test. Test Method A can also be used to determine percent compaction or percent relative density when the maximum particle size present in the in-place material being tested does not exceed the maximum particle size allowed in the laboratory compaction test refer to Test Methods DDDDand D It is beyond the scope of this standard to consider significant digits used in analytical methods for engineering design.

The material being tested should have sufficient cohesion or particle interlocking to maintain stable sides during excavation of the test pit and through completion of this test.

These test methods have been written using inch-pound units gravimetric system where the pound lbf represents a unit of force weight. For specific 491 statements, see Sections 8 and A1. Reliable testing depends on many factors; Practice D provides a means of evaluating some of those factors. Active view current version of standard. Active view current version of standard. Activation of monitoring failed – please try again later or contact us.

It is undesirable to combine the use of two separate systems within a single standard. In this system the pound lbf represents a unit of force weight.