Astm d4791

Method B is a comparison of the maximum particle dimension to the minimum particle dimension and is intended for atm with Superpave specifications. Gauge has seven labeled slots for rapid hand trying of particles from each of atsm seven sieve cuts. Indicates the angularity, sphericality, and workability of fine aggregate in a mixture. Includes ml brass cylindrical measure, funnel assembly, funnel stand, and glass plate for calibration.

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S4791 Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Indicates the angularity, sphericality, and workability of fine aggregate in a mixture.

The excess heaped aggregate is struck of using the included bar, the mass is measured, and the void content is computed.

The particles shape of course aggregates influences the properties of some construction materials and may affect their placement and consolidation. Gauge has seven labeled slots for rapid hand trying of particles from each of atsm seven sieve cuts.

Two procedures, Method A and Method B, are presented in this standard. Six labeled openings between pairs of metal pins measure particle from each of the six sieve cuts below 50mm. Scratch Hardness Tester determines quantity of soft particles in coarse aggregates on basis of scratch hardness. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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. In operation, the aggregate is allowed to free-fall mm from the funnel bottom into a mm v by mm high cylindrical measure. When sieve mesh sizes are referenced, the alternate inch-pound designations are provided for information purposes and enclosed in parenthesis.

Moisture Density Gauges Rentals. Method A is a reflection of the original procedure as developed prior to Superpave and is intended for all non-Superpave applications.

Proportional Caliper Device

The values given in parentheses are mathematical conversions to SI units that are provided for information only wstm x not considered standard. It is recommended that the desiredprocedure d47911 reviewed carefully prior to conducting the d Method A is a reflection of the original procedure astmm developed prior to Superpave and is intended for all non-Superpave applications. This test method provides a means for checking compliance with specifications that limit such particles or to determine the relative shape characteristics of coarse aggregates.

The standard flat and elongated particles in coarse aggregate test is: Ratio desired is obtained by selecting one of four astn positions: The particles shape of course aggregates influences d47991 properties of some construction materials and may affect their placement and consolidation.

Includes ml brass cylindrical measure, funnel assembly, funnel stand, and glass plate for calibration. The mass of all elongated particles failing to pass between pins as percent of the sample is the elongation index. Home Contact Privacy Rentals. Work Item s - proposed revisions of this standard. Historical Version s - view previous versions of standard.

Active Risk Management

Used to determine the void content of uncompacted coarse aggregates used in HMA applications. When used on aggregates of a known size, the void content provides the user with an indication of the angularity, sphericity and surface xstm as compared to other course aggregates of the same grading. This test method provides d491 means for checking compliance with specifications that limit such particles or to determine the relative shape characteristics of coarse aggregates.

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. When sieve mesh sizes are referenced, the alternate inch-pound designations are provided for information purposes and enclosed in parenthesis. Referenced Documents purchase aatm The documents listed below are referenced within the subject standard but are asfm provided as part of the standard.

Method B is a comparison of the maximum particle dimension to the minimum particle dimension and is intended for atm with Superpave specifications. Use to determine the uncompacted void content of a fine aggregate sample.

The mass of all flaky particles passing appropriate slots as percent of the sample is the flakiness index. Two procedures, Method A and Method B, are presented in this standard.

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