Types of soils and how they are classified

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Answer 1

Question

Chapter 5, Problem 1RQ

To determine

Types of soils and how they are classified

Expert Solution & Answer

Answer to Problem 1RQ

Soils are classified based on particle size and physical properties. The types of soil include gravel, sand, silt, clay, and organic matter.

Explanation of Solution

The classification of soils is done based on the particle size and their physical properties. They are segregated with the help of sieve analysis. They are mostly classified in the following five types,

A. Gravel:

It is a hard rock material with particle size greater than 6.4mm but less than 76mm.

B. Sand

The particle size ranges from 0.050mm to 6.3mm which are too small to handle individually. Sand possesses high permeability and therefore has excellent drainage characteristics.

C. Silt

The particle size of silt ranges from 0.002mm to 0.05mm. It is also known as fine sand.

D. Clay

It is a cohesive soil and it expands when it absorbs water. The particle size of clay is less than 0.002 mm.

E. Organic matter

It refers to partly decomposed plants and animals.

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Problem 1: Given: In a given floor system, a 5-in concrete slab supported by T-beams of 24-ft spans, supporting 354 psf live load. The T-beams are spaced 2x4 ft on center, and bw (width of the beam web) = 15 inches. Total T-beam height is 25 inches. f'c = 4,000psi, fy = 60,000psi. Design the T-beam. Show all steps. Sketch your Design. Problem 2: Given: A 25"x25" column is subject to a factored axial load of Pu=1,200 kips, and factored design moment of Mu-354 kips-ft. f'c 4,000psi, fy = 60,000psi. Determine the required steel ratio (p) and ties. Sketch the design. 2.0 0.08 INTERACTION DIAGRAM R4-60.9 fc-4 ksi 1.8 1,- 60 ksi 0.07 Y=0.9 16 1.6 0.06 Kmax 0.05 1.4 f/f, = 0 0.04 00 K₁ = P₁/f'c Ag 1.2 12 0.03 0.25 1.0 10 0.02 0.01 0.8 0.6 0.4 €,= 0.0035 0.2 €,= 0.0050 0.0 h yh 0.50 0.75 1.0. 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 R₁ = P₁e/f'Agh

Given: In a given floor system, a 5-in concrete slab supported by T-beams of 24-ft spans, supporting 354 psf live load. The T-beams are spaced 2x4 ft on center, and bw (width of the beam web) = 15 inches. Total T-beam height is 25 inches. f'c = 4,000psi, fy = 60,000psi. Design the T-beam. Show all steps. Sketch your Design.

Answer 2

Question

Chapter 5, Problem 1RQ

To determine

Types of soils and how they are classified

Expert Solution & Answer

Answer to Problem 1RQ

Soils are classified based on particle size and physical properties. The types of soil include gravel, sand, silt, clay, and organic matter.

Explanation of Solution

The classification of soils is done based on the particle size and their physical properties. They are segregated with the help of sieve analysis. They are mostly classified in the following five types,

A. Gravel:

It is a hard rock material with particle size greater than 6.4mm but less than 76mm.

B. Sand

The particle size ranges from 0.050mm to 6.3mm which are too small to handle individually. Sand possesses high permeability and therefore has excellent drainage characteristics.

C. Silt

The particle size of silt ranges from 0.002mm to 0.05mm. It is also known as fine sand.

D. Clay

It is a cohesive soil and it expands when it absorbs water. The particle size of clay is less than 0.002 mm.

E. Organic matter

It refers to partly decomposed plants and animals.

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Answer 3

Question

Chapter 5, Problem 1RQ

To determine

Types of soils and how they are classified

Expert Solution & Answer

Answer to Problem 1RQ

Soils are classified based on particle size and physical properties. The types of soil include gravel, sand, silt, clay, and organic matter.

Explanation of Solution

The classification of soils is done based on the particle size and their physical properties. They are segregated with the help of sieve analysis. They are mostly classified in the following five types,

A. Gravel:

It is a hard rock material with particle size greater than 6.4mm but less than 76mm.

B. Sand

The particle size ranges from 0.050mm to 6.3mm which are too small to handle individually. Sand possesses high permeability and therefore has excellent drainage characteristics.

C. Silt

The particle size of silt ranges from 0.002mm to 0.05mm. It is also known as fine sand.

D. Clay

It is a cohesive soil and it expands when it absorbs water. The particle size of clay is less than 0.002 mm.

E. Organic matter

It refers to partly decomposed plants and animals.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Question

Chapter 5, Problem 1RQ

To determine

Types of soils and how they are classified

Expert Solution & Answer

Answer to Problem 1RQ

Soils are classified based on particle size and physical properties. The types of soil include gravel, sand, silt, clay, and organic matter.

Explanation of Solution

The classification of soils is done based on the particle size and their physical properties. They are segregated with the help of sieve analysis. They are mostly classified in the following five types,

A. Gravel:

It is a hard rock material with particle size greater than 6.4mm but less than 76mm.

B. Sand

The particle size ranges from 0.050mm to 6.3mm which are too small to handle individually. Sand possesses high permeability and therefore has excellent drainage characteristics.

C. Silt

The particle size of silt ranges from 0.002mm to 0.05mm. It is also known as fine sand.

D. Clay

It is a cohesive soil and it expands when it absorbs water. The particle size of clay is less than 0.002 mm.

E. Organic matter

It refers to partly decomposed plants and animals.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Chapter 5, Problem 1RQ

To determine

Types of soils and how they are classified

Expert Solution & Answer

Answer to Problem 1RQ

Soils are classified based on particle size and physical properties. The types of soil include gravel, sand, silt, clay, and organic matter.

Explanation of Solution

The classification of soils is done based on the particle size and their physical properties. They are segregated with the help of sieve analysis. They are mostly classified in the following five types,

A. Gravel:

It is a hard rock material with particle size greater than 6.4mm but less than 76mm.

B. Sand

The particle size ranges from 0.050mm to 6.3mm which are too small to handle individually. Sand possesses high permeability and therefore has excellent drainage characteristics.

C. Silt

The particle size of silt ranges from 0.002mm to 0.05mm. It is also known as fine sand.

D. Clay

It is a cohesive soil and it expands when it absorbs water. The particle size of clay is less than 0.002 mm.

E. Organic matter

It refers to partly decomposed plants and animals.

Answer 6

Chapter 5, Problem 1RQ

To determine

Types of soils and how they are classified

Expert Solution & Answer

Answer to Problem 1RQ

Soils are classified based on particle size and physical properties. The types of soil include gravel, sand, silt, clay, and organic matter.

Explanation of Solution

The classification of soils is done based on the particle size and their physical properties. They are segregated with the help of sieve analysis. They are mostly classified in the following five types,

A. Gravel:

It is a hard rock material with particle size greater than 6.4mm but less than 76mm.

B. Sand

The particle size ranges from 0.050mm to 6.3mm which are too small to handle individually. Sand possesses high permeability and therefore has excellent drainage characteristics.

C. Silt

The particle size of silt ranges from 0.002mm to 0.05mm. It is also known as fine sand.

D. Clay

It is a cohesive soil and it expands when it absorbs water. The particle size of clay is less than 0.002 mm.

E. Organic matter

It refers to partly decomposed plants and animals.

Answer 7

Chapter 5, Problem 1RQ

To determine

Types of soils and how they are classified

Answer 8

Expert Solution & Answer

Answer to Problem 1RQ

Soils are classified based on particle size and physical properties. The types of soil include gravel, sand, silt, clay, and organic matter.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

The classification of soils is done based on the particle size and their physical properties. They are segregated with the help of sieve analysis. They are mostly classified in the following five types,

A. Gravel:

It is a hard rock material with particle size greater than 6.4mm but less than 76mm.

B. Sand

The particle size ranges from 0.050mm to 6.3mm which are too small to handle individually. Sand possesses high permeability and therefore has excellent drainage characteristics.

C. Silt

The particle size of silt ranges from 0.002mm to 0.05mm. It is also known as fine sand.

D. Clay

It is a cohesive soil and it expands when it absorbs water. The particle size of clay is less than 0.002 mm.

E. Organic matter

It refers to partly decomposed plants and animals.