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specifi ion of flat and elongated particles:

Flat Elongated Particles

3.7 Weigh the Flat and Elongated particles for each sieve sample to the nearest 0.1 gram and record in column (C) “Weight of Flat/Elongated Particles”. 3.8 Calculate the “Percent of Flat/Elongated Individual Sieve” and the “Percent Flat/ Elongated Weighted Average” to the nearest 0.1 percent by using the following equations.

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Standard Test Method for Flat Particles, Elongated ...

1.1 This test method covers the determination of the percentages of flat particles, elongated particles, or flat and elongated particles in coarse aggregates. Two procedures, Method A and Method B, are presented in this standard. Method A is a reflection of the original procedure as developed prior to Superpave and is intended for all non-Superpave applications.

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5 Aggregate Specifications and Requirements

restriction on the number of flat and elongated pieces. Section 904.03 sets the limits for the number of flat and elongated pieces. A flat and elongated piece is defined as one having a ratio of length to thickness greater than five. The method for determining the actual percentage of flat and elongated pieces is described in test method ASTM D ...

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NCAT Report 17-03R EFFECT OF FLAT AND ELONGATED

loss and no more than 20 percent flat and elongated (FE) particles when measured at a 3:1 ratio of length to maximum thickness. These values were adopted as guidelines by a Technical Working Group selected by the Federal Highway Administration (FHWA) in 1991 (1, 2).

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Characteristics of Aggregates: Shape, Size Specific ...

Flat and Elongated Particles testing measures dimensional ratios of individual coarse aggregate particles. Particles with significantly greater length compared to their width will tend to fracture across the narrow aspect when loaded and can resist reorientation

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Engineering Field Manual

Specific gravity ... In shape, soil particles may be spherical, flat, elongated, or flat and elongated. The size and shape of clay particles are determined by the chemical composition and molecular structure of each ... a structure of elongated particles (usually clay particles) held

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PHYSICAL PROPERTIES OF AGGREGATES

Physical Properties of Aggregates 4 Coarse Aggregate Angularity • Measured on + 4.75 mm material • Based on fractured faces – fractured surface larger than 25% of aspect ratio • ASTM D 5821 • Specification requirements depend on: – depth of layer within pavement

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WV Department of Transportation

ASTM D 4791; MP 703.00.25 Flat and Elongated Particles and Other Miscellaneous Tests: AASHTO T 19 Unit Weight Test; The overall purpose of these tests is to ensure quality and consistency of aggregates and soils in the application of state projects, including roads, bridges, buildings, dams and countless other infrastructural components.

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SUBJECT: HOT MIX ASPHALT (HMA) MIXTURE DESIGN

also gives the specific testing details and evaluation procedures to be followed in the HMA ... 28. ASTM D 4791 - Standard Test Method for Flat Particles, Elongated Particles, or Flat and Elongated Particles in Coarse Aggregate. NYSDOT Materials Method 5.16 3 29. ASTM D 5821 - Standard Test Method for Determining the Percentage of

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ASTM C295 / C295M - 19 Standard Guide for Petrographic ...

5.8 Petrographic examinations may also be used to determine the proportions of cubic, spherical, ellipsoidal, pyramidal, tabular, flat, and elongated particles in an aggregate sample or samples. Flat, elongated, and thin chip-like particles in aggregate increase the mixing water requirement and hence decrease concrete strength.

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Site Manager Forms

Flat, Elongated, or Flat and Elongated Particles in Coarse Aggregate: Tx2AC: Determination of Moisture, Asphalt and Volatile Content: Tx2ExtGrd: Combined Gradation: Tx2MgEst: Estimated Magnesium Sulfate Soundness Loss: Tx2MixDe14: HMACP Mixture Design: Combined Gradation (2014) Tx2MixDe4: HMACP Mixture Design: Combined Gradation (2004 ...

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What is the significance of Flakiness Index and Elongation ...

Flaky and elongated particles may have adverse effects on concrete and bituminous mix. For instance, flaky and elongated particles tend to lower the workability of concrete mix which may impair the long-term durability. For bituminous mix, flaky particles are liable to break up and disintegrate during the pavement rolling process.

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Aggregate Tests for Hot-Mix Asphalt

elongated particles by testing individual particles of specific sieve sizes. The percentage of flat particles, elongated particles, and total flat and elongated particles is calculated either by number or by mass. Figure 1 indicates that 38 percent of the states surveyed have some requirement to control flat and elongated particles, but only a ...

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ITEM P-401 PLANT MIX BITUMINOUS PAVEMENTS

particles, elongated particles, and flat and elongated particles,when tested in accordance with ASTM D 4791 with a value of 5:1. b. Fine Aggregate. Fine aggregate shall consist of clean, sound, durable, angula r shaped particles produced by crushing stone, slag, or gravel that meets the requirements

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Quantify Shape, Angularity and Surface Texture of ...

opportunities for describing shape and texture of particles in an automated fashion. Two independent systems are presented for capturing angularity and texture images and are analyzed with the help of the

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STANDARD METHODS OF TESTS - Nebraska Department of

Jul 01, 2019  AASHTO T 84 Specific Gravity and Absorption of Fine Aggregate for Asphalt . ... ASTM D 4791 Flat and Elongated Particles in Coarse Aggregate . ... NDT T 290 Determination of Water-Soluble Sulfate Ion Content in Soil . NDT T 290 . Determination of Water-Soluble Chloride Ion

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PHYSICAL PROPERTIES OF AGGREGATES

Physical Properties of Aggregates 4 Coarse Aggregate Angularity • Measured on + 4.75 mm material • Based on fractured faces – fractured surface larger than 25% of aspect ratio • ASTM D 5821 • Specification requirements depend on: – depth of layer within pavement

Read More
WV Department of Transportation

ASTM D 4791; MP 703.00.25 Flat and Elongated Particles and Other Miscellaneous Tests: AASHTO T 19 Unit Weight Test; The overall purpose of these tests is to ensure quality and consistency of aggregates and soils in the application of state projects, including roads, bridges, buildings, dams and countless other infrastructural components.

Read More
STANDARD METHODS OF TESTS - Nebraska Department of

Jul 01, 2019  AASHTO T 84 Specific Gravity and Absorption of Fine Aggregate for Asphalt . ... ASTM D 4791 Flat and Elongated Particles in Coarse Aggregate . ... NDT T 290 Determination of Water-Soluble Sulfate Ion Content in Soil . NDT T 290 . Determination of Water-Soluble Chloride Ion

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ASTM-D4791 Standard Test Method for Flat Particles ...

1.1 This test method covers the determination of the percentages of flat particles, elongated particles, or flat and elongated particles in coarse aggregates. Two procedures, Method A and Method B, are presented in this standard. Method A is a reflection of the original procedure as developed prior to Superpave and is intended for all non-Superpave applications.

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ITEM P-401 PLANT MIX BITUMINOUS PAVEMENTS

particles, elongated particles, and flat and elongated particles,when tested in accordance with ASTM D 4791 with a value of 5:1. b. Fine Aggregate. Fine aggregate shall consist of clean, sound, durable, angula r shaped particles produced by crushing stone, slag, or gravel that meets the requirements

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ASTM C295 / C295M - 19 Standard Guide for Petrographic ...

5.8 Petrographic examinations may also be used to determine the proportions of cubic, spherical, ellipsoidal, pyramidal, tabular, flat, and elongated particles in an aggregate sample or samples. Flat, elongated, and thin chip-like particles in aggregate increase the mixing water requirement and hence decrease concrete strength.

Read More
What is the significance of Flakiness Index and Elongation ...

Flaky and elongated particles may have adverse effects on concrete and bituminous mix. For instance, flaky and elongated particles tend to lower the workability of concrete mix which may impair the long-term durability. For bituminous mix, flaky particles are liable to break up and disintegrate during the pavement rolling process.

Read More
Site Manager Forms

Flat, Elongated, or Flat and Elongated Particles in Coarse Aggregate: Tx2AC: Determination of Moisture, Asphalt and Volatile Content: Tx2ExtGrd: Combined Gradation: Tx2MgEst: Estimated Magnesium Sulfate Soundness Loss: Tx2MixDe14: HMACP Mixture Design: Combined Gradation (2014) Tx2MixDe4: HMACP Mixture Design: Combined Gradation (2004 ...

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(PDF) Effect of particle size and shape on the grain-size ...

flat, elongated, and spherical and performed the image analysis for grain-size distribution. Figure 10 shows the grain-size distributions of the samples have 4.75mm -8mm size fraction.

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Quantify Shape, Angularity and Surface Texture of ...

opportunities for describing shape and texture of particles in an automated fashion. Two independent systems are presented for capturing angularity and texture images and are analyzed with the help of the

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Manual of Test Procedures for Materials

Illinois Test Procedure 4791 Revised various sections and retitled, “Flat and Elongated Particles in Coarse Aggregate”. Illinois Test Procedure 5821 Revised various sections. ASTM C 1231 Ued to new version and added a new Illinois Modified section.pdat ASTM D 1188 Updated to new version.

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APPLICATION FOR RECIPROCITY North Dakota Department of ...

Flat Particles, Elongated Particles, or Flat and Elongated Particles in Coarse Aggregate (ND D 4791) Fractured Particles in Coarse Aggregate (NDDOT 4) Asphalt Mix Test Procedures; Bulk Specific Gravity of Compacted HMA Using Saturated Surface-Dry Specimens Method A (ND T 166) Theoretical Maximum Specific Gravity and Density of HMA (ND T 209)

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Exp 1 Flakiness and Elongation Index - Civil Engineers PK

This indicates that material particles longer than 40.5mm say 41mm will be elongated particles and the particles thinner than 13.5mm say 13mm will be considered flat particles. This means that the particles of the material 42mm long and 12.5mm will not qualify

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HOW TO CLASSIFY AGGREGATE ACCORDING TO ITS ... -

Jun 26, 2014  Elongated Aggregate. The aggregate is said to be elongated when its length is greater than 180% of its mean dimension. 6. Flaky Elongated Aggregate. Aggregate is said to be flaky and elongated when it satisfies both the above conditions. Generally elongated or flaky particles

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