SPECIFIC GRAVITY OF COURSE AGGREGATE

This test covers the determination of relative density (specific gravity) and the absorption of coarse aggregates. The relative density (specific gravity), a dimensionless quantity, is expressed as oven-dry (OD), saturated-surface-dry (SSD), or as apparent relative density (apparent specific gravity). The OD relative density is determined after dry...

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SPECIFIC GRAVITY OF Fine AGGREGATE

This test method covers the determination of relative density (specific gravity) and the absorption of coarse aggregates, the relative density (specific gravity), a dimensionless quantity, is expressed as oven-dry (OD), sat-urated-surface-dry (SSD), or as apparent relative density (apparent specific gravity). The OD relative density is determined a...

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Unit Weight Of Aggregate

This test method covers the determination of bulk density (“unit weight”) of aggregate in a compacted or loose condition, and calculated voids between particles in fine, coarse, or mixed aggregates based on the same determination. This test method is applicable to aggregates not exceeding 125\ mm *5 in.+ in nominal maximum size.

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Los Angles Abrasion test

This test method which is a modification of AASHTO Designation T 96, is used to determine the resistance of coarse aggregate to impact in a rotating cylinder containing metallic spheres. This test is known as the Los An-geles Rattler Test. The Los Angeles (L.A.) abrasion test is a common test method used to indicate aggregate toughness and abrasion...

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Soundness test of Course Aggregate

This test measures aggregate resistance to disintegration by immersing the test sample in either Sodium or Magnesium sulfate for 16 horse then drayed in oven till it reach to a constants weight for 5 cycles at the end of the fifth cycle we calculate the Individual Percent Loss of each size fraction of the sample.

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Shape Test

The particle shape of aggregates is determined by the percentages of flaky and elongated particles contained in it. In the case of gravel it is determined by its angularity number. For base course and construction of bituminous and cement concrete types, the presence of flaky and elongated particles are considered undesirable as they may cause inhe...

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Clay Lumps And Friable Particles

The aim of this test is ensure the aggregate used performs as intended for highway construction, several tests are performed to determine the physical characteristics of the material. One of these tests is the determination of Clay Lumps and Friable Particles in Aggregate.Excessive clay lumps in a processed aggregate intended for use in a Portland...

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Material Finer than 75-μm (#200 Sieve)

In this test Fine materials such as clay particles or water soluble particles removed by washing. This test washes the fine particles through the No. 200 (75 μm) sieve to give an accurate determination of fine materials in the sample. The determination of minus No. 200 (75 μm) material is used to compare material performance with gradation specific...

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Sand Equivalent Test

This test is conducted to show the relative proportion of clay-like or plastic fines and silt in granular soils and fine aggregates by means of a rapid field test known as the Sand Equivalent (SE). Most specifications for unbound granular base have requirements concerning rock strength, weathering resistance and grading. The maximum percentage fine...

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Micro-Devel Test

This method covers a procedure for testing coarse aggregate for resistance to abrasion using the Micro-Deval apparatus. The Micro-Deval abrasion test is a test of coarse aggregate to determine abrasion loss in the pres-ence of water and an abrasive charge. Many aggregates are more susceptible when wet than dry, and the use of water in this test inc...

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