lab4 - CE 497 Aggregate Properties Section 5 Hui Fan...

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CE 497 Aggregate Properties Section 5
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Hui Fan 2/12/2009
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INTRODUCTION: The objective of this experiment is to measure unit weight, density, specific gravities, and particle size distribution. The unit weight equals weight divide by volume; density equals mass divide by volume; the specific gravities equal solid density divided by water density. In the specific gravity test, the expected result of SG A should be the higher than Bulk SG and SG SSD . Also in the Sieve Analysis, the expected result should be the larger commutative retain percentage, the coarser gradation. PROCEDURE: For the Dry Rodded Unit Weight test, first step is to weight the bucket, and put the water in to the bucket and calculate the volume of the bucket. Then filled with ½ -3/4’’ aggregate with 3 layer rodding 25 times. And weight the full bucket. Used the calculated DRUW unite weight divide by unit weight water for sp gravity. The limitation of this test is it hard to control the gap between the aggregate in the bucket, also it is difficult to fill the bucket exactly full with water. For the specific gravity test, first is to roll the aggregate into towel, and measure
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This note was uploaded on 05/06/2010 for the course CEM CEM497 taught by Professor Ku during the Spring '10 term at Punjab Engineering College.

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lab4 - CE 497 Aggregate Properties Section 5 Hui Fan...

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