Introduction - EN545370007
Lesson 1 Basic Soil Properties
Introduction - EN545370009
Learning Event 1 Evaluate Relative Strength of Soils Based on Physical Properties
Particle Grain Size
Documenting the Results on a Grain Size Distribution Graph
Figure 3. Sieve Analysis Data Form
Figure 4. Grain Size Distribution Graph
Figure 5. Various Well-Graded and Poorly-Graded Soils
Documenting the Results on a Grain Size Distribution Graph -Cont.
Lesson 1/Learning Event 1 Particle Size
Figure 7. Well -Graded Soils
Learning Event 2 Gradation Quality
Learning Event 2 Gradation Quality -Cont.
Learning Event 3 Atterberg Limits and Casagrande Plasticity Chart
Figure 9. Soil Plasticity
Figure 10. Performing A Plastic Limit test
Figure 11. Plasticity Chart
Summary - EN545370025
Practice Exercise for Lesson 1 - EN545370026
Practice Exercise for Lesson 1 -Cont. - EN545370027
Grain Size Distribution Graph
Answer Sheet For Practice Exercise - EN545370029
Answer Sheet For Practice Exercise -Cont. - EN545370030
Lesson 2 Soil Classification and Field Identification Procedures
Learning Event 1 Identify Symbols Used in USCS
Table 2. USCS Symbols
Coarse Grained Soils with Greater than 12 Percent Fines
Learning Event 2 Classify Coarse And Fine Grained Soils
Coarse-grained Soil with Fines from 5 to 12 Percent
Fine Grained Soils
Figure 16. Soil Classification Chart
Figure 17. Soil Classification Chart
Learning Event 3 Use Visual Examination Procedures to Classify Soils
Coarse-grained Soils
Undisturbed Soil Properties
Learning Event 4 Conduct A Field Test For # 40 Sieve Material
Moisture Content
Typical Reactions - EN545370045
Description of Cohesiveness
Sandy Soils
Typical Reactions - EN545370048
Figure 21. Wet Shaking Test
Sedimentation Test
Cast Test
Wash, Dust , and Smear Tests
Figure 22. Suggested Procedures for Field Identification
Learning Event 6 Identify the Physical Properties of Soil and Their Effects on Engineering
Physical Properties
Table 5. Characteristics Pertinent to Roads and Airfields
Table 5A.Characteristics Pertinent to Embankments and Foundations
Practice Exercise for Lesson 2 - EN545370059
Practice Exercise for Lesson 2 -Cont. - EN545370060
Practice Exercise for Lesson 2 -Cont. - EN545370061
Practice Exercise for Lesson 2 -Cont. - EN545370062
Answer Sheet For Practice Exercise - EN545370063
Answer Sheet For Practice Exercise -Cont. - EN545370064
Lesson 3 Soil Surveys
Learning Event 1 Identify Types of Soil Surveys
Location, Nature, and Classification of Soil Layers
Ground Water and Bedrock
Learning Event 2 Identify the Steps in A Field Investigation
Agricultural Soil Maps
Subsurface Investigation
Table 6.Methods of Subsurface Exploration
Sampling Methods
Methods of Subsurface Exploration and Sampling
Subgrade and Borrow Areas
Select Material and Subbase
Figure 25. Sample Boring Log
The Soil Profile
Uses of the Soil Profile
Planning of General Layout
Preparation of Soil Profile
Learning Event 3 Prepare A Technical Soil Report
Learning Event 3 Prepare A Technical Soil Report -Cont.
Practice Exercise for Lesson 3 - EN545370084
Practice Exercise for Lesson 3 -Cont. - EN545370085
Answer Sheet For Practice Exercise - EN545370086
Lesson 4 Field Control Procedures
Learning Event 1 Determine Field Moisture Content
Test Procedure for the Oven or Alcohol Method
Test Procedure for the Oven or Alcohol Method -Cont.
Learning Event 2 Identify Methods and Apparatus for the Undisturbed Sample Method
Figure 27. Sample with CBR Compaction Mold
Learning Event 2 Identify Methods and Apparatus for the Disturbed Sample Method
Apparatus Calibration
Figure 29. DD Form 1215 (Front)
Figure 30. DD Form 1215 (Back)
The Bulk Density of Sand is Affected by Changes in Temperature and Humidity
Volume-of-Hole Determination
Figure 31. DD Form 1215 (Back)
Density Determination
Learning Event 4 Describe Uses of the Nuclear Moisture and Density Gage
Figure 32. Nuclear Moisture and Density Gauge
Determining How Much Water Must be Added for Optimum Moisture
Influence of Moisture Content
Lead Through Practical Exercise Field Density(Sand Method)
Lead Through Practical Exercise Field Density(Sand Method) -Cont.
Lead Through Practical Exercise Solution
Practice Exercise for Lesson 4 - EN545370109
Answer Sheet For Practice Exercise - EN545370111
Lesson 5 California Bearing Ratio
Introduction - EN545370113
Learning Event 1 Apply Principles of Pavement Design Using the CBR Method
Figure 33. Typical Flexible Pavement Section
Base Course
Factors Affecting Type of Test Program
Table 9. Summary of CBR Test Programs
Figure 34. Flexibility Pavement Design Curves
CBR Test and Applications
Summary of Sample Preparation
Figure 35. Typical CBR Penetration Test Results
Summary of Sample Preparation -Cont.
Advantages and Disadvantages of the CBR test
Learning Event 3 Identify CBR Steps for Non-Swelling ,Swelling,and Free-Draining Soils
Figure 36. CBR Analysis Sheet, Part 1
Sample Test Program For Non-Swelling Soils
Sample Test Program For Non-Swelling Soils -Cont.
Figure 37. CBR Analysis Sheet, Part 2
Engeneering Analysis
Engeneering Analysis -Cont.
Test Program for Swelling or Expansive Soils
Test Program for Swelling or Expansive Soils -Cont. - EN545370133
Figure 38. Swell Data Curve
Test Program for Swelling or Expansive Soils -Cont. - EN545370135
Figure 39. CBR Data
Test Program for Free-Draining Soils
Figure 40. CBR Analysis Sheet
Field CBR Tests (In-Place Tests)
Practice Exercise for Lesson 5 - EN545370141
Practice Exercise for Lesson 5 -Cont.
Answer Sheet For Practice Exercise - EN545370144
Soils Engineering
Lesson 1 Basic Soil Properties
Introduction - EN545370009
Learning Event 1 Evaluate Relative Strength of Soils Based on Physical Properties
Particle Grain Size
Documenting the Results on a Grain Size Distribution Graph
Figure 3. Sieve Analysis Data Form
Figure 4. Grain Size Distribution Graph
Figure 5. Various Well-Graded and Poorly-Graded Soils
Documenting the Results on a Grain Size Distribution Graph -Cont.
Lesson 1/Learning Event 1 Particle Size
Figure 7. Well -Graded Soils
Learning Event 2 Gradation Quality
Learning Event 2 Gradation Quality -Cont.
Learning Event 3 Atterberg Limits and Casagrande Plasticity Chart
Figure 9. Soil Plasticity
Figure 10. Performing A Plastic Limit test
Figure 11. Plasticity Chart
Summary - EN545370025
Practice Exercise for Lesson 1 - EN545370026
Practice Exercise for Lesson 1 -Cont. - EN545370027
Grain Size Distribution Graph
Answer Sheet For Practice Exercise - EN545370029
Answer Sheet For Practice Exercise -Cont. - EN545370030
Lesson 2 Soil Classification and Field Identification Procedures
Learning Event 1 Identify Symbols Used in USCS
Table 2. USCS Symbols
Coarse Grained Soils with Greater than 12 Percent Fines
Learning Event 2 Classify Coarse And Fine Grained Soils
Coarse-grained Soil with Fines from 5 to 12 Percent
Fine Grained Soils
Figure 16. Soil Classification Chart
Figure 17. Soil Classification Chart
Learning Event 3 Use Visual Examination Procedures to Classify Soils
Coarse-grained Soils
Undisturbed Soil Properties
Learning Event 4 Conduct A Field Test For # 40 Sieve Material
Moisture Content
Typical Reactions - EN545370045
Description of Cohesiveness
Sandy Soils
Typical Reactions - EN545370048
Figure 21. Wet Shaking Test
Sedimentation Test
Cast Test
Wash, Dust , and Smear Tests
Figure 22. Suggested Procedures for Field Identification
Learning Event 6 Identify the Physical Properties of Soil and Their Effects on Engineering
Physical Properties
Table 5. Characteristics Pertinent to Roads and Airfields
Table 5A.Characteristics Pertinent to Embankments and Foundations
Practice Exercise for Lesson 2 - EN545370059
Practice Exercise for Lesson 2 -Cont. - EN545370060
Practice Exercise for Lesson 2 -Cont. - EN545370061
Practice Exercise for Lesson 2 -Cont. - EN545370062
Answer Sheet For Practice Exercise - EN545370063
Answer Sheet For Practice Exercise -Cont. - EN545370064
Lesson 3 Soil Surveys
Learning Event 1 Identify Types of Soil Surveys
Location, Nature, and Classification of Soil Layers
Ground Water and Bedrock
Learning Event 2 Identify the Steps in A Field Investigation
Agricultural Soil Maps
Subsurface Investigation
Table 6.Methods of Subsurface Exploration
Sampling Methods
Methods of Subsurface Exploration and Sampling
Subgrade and Borrow Areas
Select Material and Subbase
Figure 25. Sample Boring Log
The Soil Profile
Uses of the Soil Profile
Planning of General Layout
Preparation of Soil Profile
Learning Event 3 Prepare A Technical Soil Report
Learning Event 3 Prepare A Technical Soil Report -Cont.
Practice Exercise for Lesson 3 - EN545370084
Practice Exercise for Lesson 3 -Cont. - EN545370085
Answer Sheet For Practice Exercise - EN545370086
Lesson 4 Field Control Procedures
Learning Event 1 Determine Field Moisture Content
Test Procedure for the Oven or Alcohol Method
Test Procedure for the Oven or Alcohol Method -Cont.
Learning Event 2 Identify Methods and Apparatus for the Undisturbed Sample Method
Figure 27. Sample with CBR Compaction Mold
Learning Event 2 Identify Methods and Apparatus for the Disturbed Sample Method
Apparatus Calibration
Figure 29. DD Form 1215 (Front)
Figure 30. DD Form 1215 (Back)
The Bulk Density of Sand is Affected by Changes in Temperature and Humidity
Volume-of-Hole Determination
Figure 31. DD Form 1215 (Back)
Density Determination
Learning Event 4 Describe Uses of the Nuclear Moisture and Density Gage
Figure 32. Nuclear Moisture and Density Gauge
Determining How Much Water Must be Added for Optimum Moisture
Influence of Moisture Content
Lead Through Practical Exercise Field Density(Sand Method)
Lead Through Practical Exercise Field Density(Sand Method) -Cont.
Lead Through Practical Exercise Solution
Practice Exercise for Lesson 4 - EN545370109
Answer Sheet For Practice Exercise - EN545370111
Lesson 5 California Bearing Ratio
Introduction - EN545370113
Learning Event 1 Apply Principles of Pavement Design Using the CBR Method
Figure 33. Typical Flexible Pavement Section
Base Course
Factors Affecting Type of Test Program
Table 9. Summary of CBR Test Programs
Figure 34. Flexibility Pavement Design Curves
CBR Test and Applications
Summary of Sample Preparation
Figure 35. Typical CBR Penetration Test Results
Summary of Sample Preparation -Cont.
Advantages and Disadvantages of the CBR test
Learning Event 3 Identify CBR Steps for Non-Swelling ,Swelling,and Free-Draining Soils
Figure 36. CBR Analysis Sheet, Part 1
Sample Test Program For Non-Swelling Soils
Sample Test Program For Non-Swelling Soils -Cont.
Figure 37. CBR Analysis Sheet, Part 2
Engeneering Analysis
Engeneering Analysis -Cont.
Test Program for Swelling or Expansive Soils
Test Program for Swelling or Expansive Soils -Cont. - EN545370133
Figure 38. Swell Data Curve
Test Program for Swelling or Expansive Soils -Cont. - EN545370135
Figure 39. CBR Data
Test Program for Free-Draining Soils
Figure 40. CBR Analysis Sheet
Field CBR Tests (In-Place Tests)
Practice Exercise for Lesson 5 - EN545370141
Practice Exercise for Lesson 5 -Cont.
Answer Sheet For Practice Exercise - EN545370144
Soils Engineering
