Soil Mechanics – Unified Soil Classification System (USCS) – Clay & Silt Classification with Plasticity Chart

Soil Mechanics – Unified Soil Classification System (USCS) – Geotechnical Excel Spreadsheets

[GEO-2025-0114] – By Dr. Ahmad Fahmi

We are thrilled to introduce the Unified Soil Classification System (USCS) spreadsheet pack for Clay and Silt soils, developed by GEOtExcel Co.. This pack includes 5 professional spreadsheets, designed to help soil mechanics professionals, students, and geotechnical engineers classify clay and silt soils based on the Plasticity Chart and the Atterberg Limits test data.

This spreadsheet pack is an invaluable tool for anyone involved in soil classification, offering easy-to-use formulas and visual tools for determining the plasticity index and shrinkage limits of soils, specifically for CL, CH, ML, and MH soil types.

What’s Included in the 5 Spreadsheets?

  1. DATA: Soil Classification Data for CL, CH, ML, and MH soils under the USCS system.
  2. USCS: Excel Spreadsheet for the Unified Soil Classification System (USCS) for clay and silt soils.
  3. Analysis Sheet: Soil Classification Analysis Sheet: Includes particle size curve and plasticity chart for USCS classification.
  4. Plasticity Chart: Understanding the Components of the Plasticity Chart for classifying soil based on Atterberg limits.
  5. Shrinkage Limit: Determining the Shrinkage Limit using the Plasticity Chart and Atterberg limits test data.

Applications in Soil Mechanics and Geotechnical Engineering:

  • Soil Classification: Use the USCS to classify clay and silt soils and calculate the plasticity index and shrinkage limits.
  • Plasticity Chart Analysis: Classify soils based on their plasticity index and assess their suitability for various engineering applications.
  • Shrinkage Limit Determination: Analyze and determine the shrinkage limit of soils using Atterberg limits test data.
  • Practical Tool: Ideal for soil testing, foundation design, and geotechnical analysis in civil engineering projects.
  • Educational Use: A useful tool for students and professors in soil mechanics and geotechnical engineering courses, helping students better understand the plasticity chart and soil classification.

📦 Part of Geotechnical Excel Spreadsheets 2025-1 Collection

This product is part of the Geotechnical Excel Spreadsheets (2025-1) suite, featuring:

  • 12 groups of spreadsheets
  • 50 files for various soil mechanics and foundation engineering calculations
  • 470+ spreadsheets
  • Secure and permanent access to all files on your computer
  • Commercially licensed for professional use

For more information or to purchase, contact us at:
📧 academy.dr.fahmi@gmail.com

🛒 To Buy Geotechnical Excel Spreadsheets and Use It on Your PC:

👉 How to Buy Geotechnical Excel Spreadsheets and Use It on Your PC

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👨‍🏫 About Dr. Ahmad Fahmi

Assistant Professor, Geotechnical Engineering, University of Bonab
Dr. Fahmi specializes in applying Excel-based solutions for soil mechanics, foundation engineering, and geotechnical testing.


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Soil Mechanics – Unified Soil Classification System (USCS) – Sand Examples | Geotechnical Excel Spreadsheets

Soil Mechanics – Unified Soil Classification System (USCS) – Sand Examples | Geotechnical Excel Spreadsheets

[GEO-2025-0113] – By Dr. Ahmad Fahmi

We are excited to present the Unified Soil Classification System (USCS) spreadsheet pack for sand examples, part of the Geotechnical Excel Spreadsheets (2025-1) collection. This set includes 20 powerful spreadsheets that guide you through soil classification using the USCS method. The pack includes practical sand soil classification examples, providing detailed data entry and analysis for sieve analysis and Atterberg limits testing, crucial for geotechnical investigations and foundation design.

What’s Included in the 20 Spreadsheets?

  1. DATA: Unified Soil Classification System (USCS) – Five data series including sieve analysis and Atterberg limits.
  2. Data Form: Data form for sieve analysis and Atterberg limits tests.
  3. Analysis Sheet-Empty: Soil classification analysis sheet for USCS, based on sieve analysis and Atterberg limits data.
  4. USCS: USCS process table for soil classification.
  5. Examples: Example table showing five sand soil classification examples.
  6. Example 1: Example for SW: Well Graded Sand.
  7. F1: Data form for sieve analysis and Atterberg limits tests for Example 1: SW.
  8. S1: Analysis for soil classification on USCS for Example 1: SW.
  9. Problem 2: Example for SP: Well Graded Sand.
  10. F2: Data form for sieve analysis and Atterberg limits tests for Example 2: SP.
  11. S2: Analysis for soil classification on USCS for Example 2: SP.
  12. Problem 3: Example for SC: Well Graded Sand.
  13. F3: Data form for sieve analysis and Atterberg limits tests for Example 3: SC.
  14. S3: Analysis for soil classification on USCS for Example 3: SC.
  15. Problem 4: Example for SW-SC: Well Graded Gravel.
  16. F4: Data form for sieve analysis and Atterberg limits tests for Example 4: SW-SC.
  17. S4: Analysis for soil classification on USCS for Example 4: SW-SC.
  18. Problem 5: Example for SP-SC: Well Graded Sand.
  19. F5: Data form for sieve analysis and Atterberg limits tests for Example 5: SP-SC.
  20. S5: Analysis for soil classification on USCS for Example 5: SP-SC.

Applications in Soil Mechanics and Geotechnical Engineering:

  • Perform soil classification using the USCS method for sand soils and other soil types.
  • Sieve analysis and Atterberg limits tests to determine soil properties and classify soil types.
  • Detailed examples and data forms to guide you through the process of soil classification.
  • Ideal for geotechnical engineers, civil engineers, and students working on soil classification and foundation design.
  • Practical tool for soil mechanics laboratories and field investigations.
  • Educational use in soil mechanics and geotechnical engineering courses.

📦 Part of Geotechnical Excel Spreadsheets 2025-1 Collection

This product is part of the Geotechnical Excel Spreadsheets (2025-1) suite, featuring:

  • 12 groups of spreadsheets
  • 50 files for various soil mechanics and foundation engineering calculations
  • 470+ spreadsheets
  • Secure and permanent access to all files on your computer
  • Commercially licensed for professional use

For more information or to purchase, contact us at:
📧 academy.dr.fahmi@gmail.com

🛒 To Buy Geotechnical Excel Spreadsheets and Use It on Your PC:

👉 How to Buy Geotechnical Excel Spreadsheets and Use It on Your PC

🔗 Follow Geotechnical Excel Spreadsheets on Social Media:

👨‍🏫 About Dr. Ahmad Fahmi

Assistant Professor, Geotechnical Engineering, University of Bonab
Dr. Fahmi specializes in applying Excel-based solutions for soil mechanics, foundation engineering, and geotechnical testing.


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Soil Mechanics – Unified Soil Classification System (USCS) | Gravel Soil Examples | Geotechnical Excel Spreadsheets

Soil Mechanics – Unified Soil Classification System (USCS) Gravel Soil Examples | GEOtExcel Spreadsheets

[GEO-2025-0112] – By Dr. Ahmad Fahmi

We are excited to introduce the Unified Soil Classification System (USCS) Gravel Soil Examples spreadsheet pack as part of the GEOtExcel (2025-1) collection. This 20-sheet bundle is designed for geotechnical engineers, soil mechanics students, and civil engineering professionals looking to classify gravel soils using the USCS system based on sieve analysis and Atterberg limits.

What’s Included in the 20 Spreadsheets?

  1. DATA: Unified Soil Classification System data series with sieve analysis and Atterberg limits.
  2. Data Form: Standardized data form for sieve analysis and Atterberg limits tests.
  3. Analysis Sheet-Empty: Empty sheet template for soil classification based on USCS data.
  4. USCS: USCS process table to help classify soil types based on test results.
  5. Examples: Example table with five examples of gravel soils classification using USCS.
  6. Example 1 – GW: Well-graded gravel classification.
  7. F1: Data form for sieve analysis and Atterberg limits for Example 1: GW.
  8. S1: Soil classification analysis sheet for Example 1: GW based on USCS.
  9. Problem 2 – GP: Well-graded gravel classification example.
  10. F2: Data form for sieve analysis and Atterberg limits for Example 2: GP.
  11. S2: Analysis for soil classification for Example 2: GP.
  12. Problem 3 – GC: Gravelly clay soil example.
  13. F3: Data form for sieve analysis and Atterberg limits for Example 3: GC.
  14. S3: Analysis for soil classification for Example 3: GC.
  15. Problem 4 – GW-GM: Well-graded gravel-silty gravel example.
  16. F4: Data form for sieve analysis and Atterberg limits for Example 4: GW-GM.
  17. S4: Analysis for soil classification for Example 4: GW-GM.
  18. Problem 5 – GP-GC: Well-graded gravel-clay gravel example.
  19. F5: Data form for sieve analysis and Atterberg limits for Example 5: GP-GC.
  20. S5: Analysis for soil classification for Example 5: GP-GC.

Applications in Geotechnical and Civil Engineering:

  • Classification of gravel soils for construction projects
  • Performing sieve analysis and Atterberg limits tests
  • Understanding and applying the USCS soil classification system
  • Preparing data forms and analysis sheets for soil lab work
  • Teaching soil mechanics and geotechnical courses
  • Research and fieldwork in soil behavior and composition

📦 Part of the GEOtExcel 2025-1 Collection

This product is part of the comprehensive GEOtExcel (2025-1) package, featuring:

  • 12 groups
  • 50 files
  • Over 470 spreadsheets
  • Secure, permanent access
  • Available for purchase with a commercial license

For inquiries or to purchase, please contact:
📧 academy.dr.fahmi@gmail.com

🛒 To Buy GEOtExcel and Use It on Your PC:

👉 How to Buy GEOtExcel and Use It on Your PC

🔗 Follow GEOtExcel on Social Media:


👨‍🏫 About Dr. Ahmad Fahmi

Assistant Professor, Geotechnical Engineering, University of Bonab
Dr. Fahmi specializes in applying Excel-based solutions for geotechnical engineering, soil mechanics, and foundation engineering.


📌 Stay Updated:

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