Traffic and Highway Engineering
5th Edition
ISBN: 9781305156241
Author: Garber, Nicholas J.
Publisher: Cengage Learning
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Question
Chapter 17, Problem 3P
To determine
(a)
Moisture content of the soil
To determine
(b)
Void ratio of the soil
To determine
(c)
Porosity of the soil
To determine
(d)
Bulk density of the soil
To determine
(e)
Dry density of the soil
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A sample of soil was taken from below the groundwater table. The moisture
content was determined to be 52% and the specific gravity
of solids (Gs) was found to be 2.69.
Determine: (a) the moist unit weight, (b) the dry unit weight,
(c) the buoyant (submerged) unit weight, (d) the void ratio, and (e) the porosity.
A soil is mixed at a water content of 16% and
compacted in a 1000 ml cylindrical mold. The sample
extruded from the mold has a mass of 1620 g, and the
specific gravity of the soil grains is 2.69.
Find the following:
a. void ratio,
b. degree of saturation, and
c. dry unit weight of the compacted sample.
d. If the sample is soaked in water at the same void
ratio, what would be the new water content?
1. The water content of a 100% saturated soil is 30% and the specific gravity of solids is 2.65. Determine the void ratio and unit weight (kN/m³)
2. A 0.08 m³ sample of soil weighs 1.4 kN. When it is dried out in an oven, it weighs 1.3 kN. The specific gravity of solids is found to be 2.70. Find the water content, void ratio, porosity, degree of saturation and the wet and dry unit weights.
3. A container with soil sample of completely saturated clay weighs 0.7 N. After drying, the weight becomes 0.62 N. The container weight is 0.35 N and the specific gravity of the soil is 2.70. Determine the void ratio, water content and porosity of the original sample.
4. A moist sand sample has a volume of 464 cm³ in natural state and a weight of 8.5 N. The dry weight is 7.4 N and the specific gravity is 2.68. Determine the void ratio, the porosity, the water content and the degree of saturation.
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Similar questions
- A soil sample is taken from a small test hole at a construction site. The volume of the test hole is determined to be 0.025 m³. The wet mass of the soil is 53.4 kg and the dry mass is 47.7 kg. The specific gravity of the soil solids is 2.70. Determine the wet and dry density, , water content, void ratio, and degree of saturationarrow_forwardA given soil sample is taken from the field by Bubba Lesh for compaction testing. Before compaction, he finds the void ratio, degree of saturation and moisture content. Then, Bubba Lesh compacts the soil sample through a modified proctor test. No water is added. Explain how the following values change from the uncompacted case to the compacted case (increases, decreases, or remains the same) and a statement describing why: a) Void Ratio (10) b) Degree of Saturation (10) c) Moisture Content (10)arrow_forwardA soil sample is oven-dried from its liquid limit state to its dry state causing a volume change of 60% of the dry volume. Likewise, the same soil is oven-dried from its plastic limit state to its dry state causing a volume change of 20% of the dry volume. The liquid limit and plastic limit are 54% and 26%, respectively. Determine the specific gravity of soil solids, shrinkage limit and shrinkage ratio. 1. INPUT THE VALUE OF SPECIFIC GRAVITY OF SOIL SOLIDS IN 2 DECIMAL PLACES 2. INPUT THE VALUE OF SHRINKAGE LIMIT IN PERCENTAGE FORM AND IN 2 DECIMAL PLACES 3. INPUT THE VALUE OF SHRINKAGE RATIO IN 2 DECIMAL PLACES Answer with text and/or attachments:arrow_forward
- Problem Set 1 Signature Problem 1: (20 pts) A soil sample has a moisture content of 32%, while its degree of saturation and moist unit weight is 85% and 17.5 kN/m³ respectively. a. What is the specific gravity of the soil solids? b. What is the void ratio of the soil sample? c. What is the porosity of the soil sample? d. What is the dry unit weight of the soil sample?arrow_forwardA sample of soil in natural state having volume of 0.00934 cu.m weighs 18.11kg. The sample is allowed to dry in an oven and weight was reduced to 15.67 kg. The specific gravity of solid was found to be 2.67. Determine the following: (a.) Moist unit weight of soil and dry unit weight of soil (b.) Void ratio and porosity (c.) Moisture content and Degree of saturation Show your solutionsarrow_forwardLet us assume that a soil sample taken in the field is taken and it must be identified by the SUCS Method and AASHTO Method. Moisture content = 5.75% Limit liquid = 53.5 Plastic limit = 31.6 Granulometry Sieve % Pass No. 4 100 # 40 68 # 200 54.3 Do you select the best answer? a) Inorganic silt and sand, with low plasticity b) Inorganic clay with low plasticity c) Clay silt, traces of gravel, dark Brownarrow_forward
- A sample of soil was tested in the laboratory, and the test results were listed as follows. Classify the soil by Unified Soil Classification System. 1. Liquid limit = 29%. 2. Plastic limit = 19%. 3. Mechanical grain-size analysis:arrow_forwardDerive the relation between void ratio (e), specific gravity of particles (G) and moisture content at full saturation (w). A certain sample of saturated soil in a container weighs 0.65 N. On drying in an oven in the container it weighs 0.60 N. The weight of container is 0.35 N. The grain specific gravity is 2.65. Determine the void ratio, water content, and bulk unit weight. Show Solutionsarrow_forwardExample 1 For a soil specimen; given that The moist mass of soil specimen is 20.7 kg Specimen's volume measured before drying is 0.011m³ Specimens dried mass is 16.3kg Specific gravity of solids is 2.68 Determine the following a) Void ratio b) Degree of Saturation c) Wet unit mass, dry unit mass d) Wet unit weight e) Dry unit weightarrow_forward
- The weight of a sample of saturated soil before drying is 1.246kg and after drying is 0.934kg . If the specific gravity of the soil particles is 2.6. Determine the Moisture content, void ratio, porosity, dry density, bulk density.arrow_forwardProblem #1. A soil sample in its natural state has a weight of 5.05 lb and a volume of 0.041 ft3. In an oven-dried state, the dry weight of the sample is 4.49 Ib. The specific gravity of the solids is 2.68. Determine: a. total unit weight b. water content C. void ratio d. porosity e. degree of saturationarrow_forwarda soil sample was determined to have a water content of 8% and a degree of saturation of 42%. After adding some water, the degree of saturation was altered to 53%. take the specific gravity of the soil solids to be 2.7. assuming no change in the volume of the voids, determine the following A. void ratio B. water content% C. bulk specific gravity of the mass of the sample in the altered state.arrow_forward
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