**Q:** The maximum and minimum dry densities of a sand were determined in

The maximum and minimum dry densities of a sand were determined in the laboratory to be 1682 kg/m3 and 1510 kg/m3, respectively. In the field, if the relative density of compaction of the same sand is...

See Answer**Q:** The maximum and minimum dry unit weights of a sand were determined

The maximum and minimum dry unit weights of a sand were determined in the laboratory to be 104 lb/ft3 and 93 lb/ft3, respectively. What would be the relative compaction in the field if the relative de...

See Answer**Q:** Repeat Problem 6.9 using Matteo’s (2009) method.

Repeat Problem 6.9 using Matteo’s (2009) method.

See Answer**Q:** Given Gs = 2.75, calculate the zero-air

Given Gs = 2.75, calculate the zero-air-void unit weight in lb/ft3 for a soil at w = 5%, 8%, 10%, 12%, and 15%.

See Answer**Q:** The grain-size characteristics are given in the following table.

The grain-size characteristics are given in the following table. Draw the grain-size distribution curve. Determine the percentages of gravel, sand, silt, and clay: According to the USDA system Accordi...

See Answer**Q:** 9% of a soil is retained on No. 4 sieve

9% of a soil is retained on No. 4 sieve, and 11% passes the No. 200 sieve. It is also known that 10%, 30%, and 60% of the soil is smaller than 0.1 mm, 0.8 mm, and 1.9 mm, respectively. When Atterberg...

See Answer**Q:** Classify the following soils using the Unified soil classification system. Give

Classify the following soils using the Unified soil classification system. Give group symbols and group names.

See Answer**Q:** Classify the following soils using the Unified soil classification system. Give

Classify the following soils using the Unified soil classification system. Give the group symbols and the group names

See Answer**Q:** The sieve analysis of ten soils and the liquid and plastic limits

The sieve analysis of ten soils and the liquid and plastic limits of the fraction passing through the No. 40 sieve are given here. Classify the soils using the AASHTO soil classification system and gi...

See Answer**Q:** Classify the following soils by the AASHTO soil classification system. Give

Classify the following soils by the AASHTO soil classification system. Give the group index for each soil.

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