A compaction test was conducted in a soils laboratory using the Standard Proctor Method B test procedure. The weight of the compact soil specimen plus mold and baseplate was determined to be 3841 g. The volume and mass of the mold were 943.7 cm³ and 2066.0 g, respectively. A moisture content test was carried out on a representative portion of the sample and the results were 9.8%. Required Determine the dry unit weight in metric units, to the nearest 100th. Your Answer:

A compaction test was conducted in a soils laboratory using the Standard Proctor Method B test procedure. The weight of the compact soil specimen plus mold and baseplate was determined to be 3841 g. The volume and mass of the mold were 943.7 cm³ and 2066.0 g, respectively. A moisture content test was carried out on a representative portion of the sample and the results were 9.8%. Required Determine the dry unit weight in metric units, to the nearest 100th. Your Answer:

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter5: Soil Compaction

Section: Chapter Questions

Problem 5.17CTP

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A compaction test was conducted in a soils laboratory using the Standard Proctor Method B test procedure. The weight of the compact soil specimen plus mold and baseplate was determined to be 3889 g. The volume and mass of the mold were 943.8 cm³ and 2067.0 g, respectively. A moisture content test was carried out on a representative portion of the sample and the results were 10.4%. Required Determine the (wet) unit weight in metric units, to the nearest 100th. Your Answer:
A hydrometer test was conducted on the material passing sieve No, 200 and the results are listed in the table below, The results of sieve analysis on the soil showed that the percentage passing No. 4 was 90 % and that passing No. 200 was 20 %. Estimate the clay size fraction in the soil. Table : Results of hydrometer test diameter (mm) 0.0700 0.0400 0.0150 0.0020 % finer (combined) 19 finer 95 80 16 65 13 45 0.0010 30 6 Select one:
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5.5 The modified Proctor test (ASTM D 698, method C) was performed for a soil with G, = 2.70, and the results are as follows: Moist Weight in Mold, gf Water Content, % 6.5 3250 9.3 3826 12.6 4293 14.9 4362 17.2 4035 18.6 3685 (d) What is y at wopi? (e) What is the range of water content if the relative compaction (R.C.) is required to be 95% of the modified Proctor Ya.max?
A compaction test was conducted and standard Proctor compaction procedure was used. The weight of a compacted soil specimen plus mold was determined to be 3815g. The volume and weight of the mold were 1/30 ft3 and 2050g, respectively. The water content of the specimen was 9.1%. Compute both the wet and dry unit weights of the compacted specimen. Answers in lb/ft3.
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A compaction test was conducted in the laboratory and the following information was obtained: • The weight of the compacted soil specimen (including the mold) was determined to be 3815 • The volume of the mold = 1/30 ft³ (944 cm³) • The weight of the mold = 2050 g • The water content in the soil was determined to be 9.1% Find the dry unit weight of the soil (in units of kN/m³).
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The table shows the laboratory result of the sieve analysis of the sample. Determine the percent finer at size 0.74and 0.004. Determine also the soil classification using AASHTO.
A soil sample was taken from a proposed embankment that is to be used as compacted fill for a building foundation. The sample was sent to a soil laboratory for a compaction test. Standard Proctor Method B was performed and the results showed maximum dry unit weight of 19.45 kN/m³ and optimum moisture content is 12.6%. During placement, the contractor had a field compaction test performed and the field test results were in-place dry unit weight of 18.65 kN/m3 and moisture content 11.6%. Required Determine the percent compaction achieved by the contractor, the the nearest 10th of a percent.
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4. Phase Diagram A soil sample was obtained at the underground parking garage that Dr. Barry is constructing at his home with a volume (VT) of 0.05 ft', total weight (WT) of 4.2 lbs, weight of water (Ww) of 0.37 lbs and a specific gravity (Gs) 2.70. Draw a complete phase diagram and determine the void ratio (e), moist unit weight (y), saturated unit weight (ysat), dry unit weight (Yary), weight of the solids (W.), volume occupied by the solids (V.), volume occupied by the water (V), volume occupied by the air (VA). volume of the voids (Vv), porosity (n), moisture content (w), and percent saturation (S). Use English units in your solution. Show all of your work.