ASTM D2726 PDF

Baixe grátis o arquivo ASTM DM – 14 _ Bulk Specific Gravity and Density of Non-Absorptive Compacted Bituminous enviado por Juliano. ASTM D APPARATUS: 1. Balance / Clause a. Conforms to D as a Class GP2 Balance ____ b. Equipped with. ASTM D – 05a Standard Test Method for Bulk Specific Gravity and Density . This standard is issued under the fixed designation D ; the number.

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ASTM D2726.2726M – 14 – Bulk Specific Gravity and Density of Non-Absorptive…

A number in aatm indicates the year of last reapproval. A superscript epsilon indicates an editorial change since the last revision or reapproval. 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. 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 mass under water is recorded, and the specimen is taken out of the water, blotted quickly with a damp cloth towel, and weighed in air. The bulk specific gravity is calculated from these masses.

Current edition approved Aug. Originally approved in No further reproductions authorized. These values in turn may be used in determining the relative degree of compaction. This conversion is made by multiplying the specific gravity at a given temperature by the density of water atsm the same temperature.

It shall be equipped with a suitable apparatus to permit weighing the specimen while suspended in water. To avoid erroneous readings by undue displacement of water, use wire or fish line of the smallest practical size to suspend the specimen and holder.

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Do not use chains, strings, or sash cords. NOTE 2—Since there are no more significant figures in the quotient bulk specific gravity than appear in either the dividend the mass of the specimen in air or in the divisor the mass of the volume of water equal to the volume of the specimen, obtained from the difference in weight of the saturated surface-dry specimen in air and in waterthis means that the balance must have a sensitivity capable of providing both mass values to at least four figures.

For example, a sensitivity of 0.

ASTM DM – 14 – Bulk Specific Gravity and Density of Non-Absorptive

The use adtm an overflow outlet is mandatory. Calibrate the thermometer in accordance with one of the methods in Test Method E77 or verify its original calibration at the ice point Note 4 and Note 5. NOTE 4—Practice E provides instructions on the preparation and use of an ice-point bath as a reference temperature. NOTE 5—If the thermometer does not read 0. Calibrate the thermometer is accordance with one the methods in Test Method E77 or verify its original calibration at the ice point Note d27726 and Note 5.

The PRT shall have a 3- or 4-wire connection configuration and the overall sheath length shall be at least 50 m 2 in. Corrections shall be applied to aetm accurate measurements within 0. Calibrate the thermistor system sensor and readout in accordance with Test Methods E or verify its original calibration at the ice point Note 4 and Note 5.

Specimens shall be stored in a safe, cool place. When any of these materials are visually evident, they shall be removed by sawing. Wire brushing to remove paper, soil, and foil is acceptable if all traces of the materials are eliminated. Moisture or Solvent—Only specimens that are known to be thoroughly dry that is, laboratory-prepared dried specimensare to be tested in accordance with All others are assumed to contain moisture or solvent and are to be tested in accordance with The sequence of testing for Designate this mass as C.

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Surface dry the specimen by blotting quickly with a damp cloth towel and then determine the mass by weighing in air. Designate this mass as B. Allow the specimen to cool and weigh aztm air. Designate this mass as A.

Other methods may be used to dry the specimen as long as a constant mass is achieved mass repeats within 0. This will make the specimen unsuitable for further testing. The interval of time between readings to determine constant mass must be sufficient to ensure that all moisture and solvent has been removed.

This interval is dependent on the size of the specimen and can be determined by experimentation and confirmed with the oven-dried comparisons. Documentation must exist to validate the intervals. Density5 Bulk sp gr Conversion to express the density in pounds per cubic foot is acceptable.

The results of two properly conducted tests on the same material, by the same operator, using the same equipment, should be considered suspect if they differ by more than the d2s single operator limits shown in Table 1. Juliano row Enviado por: Parte 1 de 2 Designation: ASTM Volume v2726 CM – 12 – Microscopical Determination of