Read Bulk%20Density_Small%20Proctor_ASTM%20D698.pdf text version

Racing Surfaces Testing Laboratory

61 Bennoch Road Orono, ME 04473 207.409.6872 ____________________________________________________________________________________________________

Note: This procedure applies to dirt only. All material must be completely free from wax and other synthetic materials. See the "Wax Separation" and "Rubber & Fiber Separation" procedures.

LABORATORY TEST METHOD FOR BULK DENSITY AND MAXIMUM BULK DENSITY DETERMINATION OF RACING SURFACE SOIL MATERIALS USING A SMALL MOLD (ASTM D698)

1) Weigh the empty sample pan and record the weight on

the data sheet. 2) Obtain 700g of oven dry sample in the sample pan. 3) Add enough distilled water to the sample using a spray bottle to obtain the desired moisture content (remember water content is (WWater/WDry Soil)). Use the moisture content calculation sheet under "blank data sheets." 4) Weigh the base and bottom half of the compaction mold. (Vsmall=3.0733E-3 ft3) 5) Pour the sample into the small proctor, and then compact it using a 5.5 pound hammer using 5 blows at the full height of 12 inches. If the hammer bounces off the material when it hits it, try to prevent the hammer from hitting the sample a second time. 6) Remove the top half of the mold and scrape off excess material until the material inside is even with the top of the proctor.

7) Weigh the bottom part of the mold and the sample and record this weight on the data sheet. The sheet will convert to English units. 8) Weigh a clean, empty, small sample pan or 250 mL beaker and record the weight. Place the entire sample in the proctor into the sample pan. Weigh the wet sample, record the weight, and place the pan into the oven (or microwave oven). Work quickly because water is being lost as time progresses. 9) Repeat steps 3 through 8, increasing the moisture content each time until all the desired moisture contents have been tested. 10) Obtain all dry material weights the following day (or after drying in the microwave oven) and record them to the data sheet.

Revision No. 1.0

Date 19-Feb-2010

Revision By Wenjin Luo

Description Created and issued procedure

Buld Density Determination

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