Bulk Density Unit Weight Voids Description of Test The dry aggregate sample is placed into a calibrated measure 1/3rd full and rodded the depth of the layer 25 times. This process is repeated a second and third time filling the measure. The measure is then weighed, and the mass per unit volume determined. If the void content is desired, the ...

CE330L Student Lab Manual Mineral Aggregate Properties . Introduction . In this lab module several characteristics of aggregates are determined. Tests will be conducted on both coarse and fine aggregates. The results of some of these tests will be used in the subsequent lab modules for the Portland cement concrete and Superpave® hot …

Coarse aggregate is also described by its bulk density, which is a property that can easily be tested in the laboratory. The standard testing procedure for this is the American Society of Testing and Materials (ASTM) C29: Standard Test Method of Bulk Density ('Unit Weight') and Voids in Aggregate.

Introduction: Bulk density of aggregate is the mass of the aggregate of a specified volume. The purpose of the lab is to determine the value of that mass/volume relationship of the aggregate. Aggregate can have a certain number of voids within it that will differ from the value of that same aggregate if it was compacted.

AASHTO T 19 - Bulk Density ("Unit Weight") and Voids in Aggregate C. APPARATUS 1. Square-point shovel. 2. Quartering canvas (6 ft 6 ft). 3. Balance: a balance or scale sensitive to 0.5 % of the weight of the sample to be weighed. 4. Tamping rod: a round, straight steel rod with a diameter of 5 8 in. ± 1 16 in. and length of at least 4 in. greater …

However as the void content in aggregate is calculated from bulk density and bulk specific gravity, the precision of the voids content reflects the precision of these measured parameters given in Sections 15.2 and 15.3 of this method and in T 84 and T Bias The procedure in this test method for measuring bulk density and void content …

Unit Weight & Voids in Aggregate Introduction This lab explores ASTM C29, Standard Test Method for Bulk Density ("Unit Weight") & Voids in Aggregate. In the lab an analysis of a fine and course aggregate was conducted in order to determine the unit weight in a compacted and loose state. The lab also determined the voids in …

Bulk Density ("Unit Weight") and Voids in Aggregate ..... 1-1 2 AASHTO T 21 ... During the course introduction, the Instructor will call the participants' attention to the form, its content, and the importance of its thoughtful completion at the end of the course. Participants will be encouraged to keep notes, or write down comments as the class …

1.1 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 5 in. [125 m] in nominal maximum size.

line changes the dry-rodded bulk density and voids of a combined aggregate mixture – combined aggregate may be tested for percent voids using the KT-5 test method, which reflects AASHTO T-19. An empirical example of the effect of removed aggregate sieve sizes – below the 0. 375 in.

For aggregates, density is determined by multiplying the relative density (specific gravity) of the aggregate times the density of water. Bulk Density of Aggregate [1] The bulk density or unit weight of an aggregate is the mass or weight of the aggregate that required to fill a container of a specified unit volume.

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