In Soil Stabilization for Pavements , you'll learn ...
- How to improve the engineering properties of soils used for pavement base courses, subbase courses, and subgrades
- The appropriate additive or additives to be used with different soil types
- Procedures for determining a design treatment level for each type of additive
- Recommended construction practices for incorporating additives into the soil
Credit: 5 PDH
Length: 83 pages
This course discusses the soil stabilization methods for pavements. A well stabilized soil is essential for the proper function of our roads, bridges, dams, and runways. Due to the non-homogenous nature of soil, it is common to find soils of different types, stability, compaction, and moisture content within one project. And though soil stabilization occurs during the first stages of a project, it can determine the life of a structure. This course therefore provides useful and relevant information for designers, contractors, and owners of pavement projects both large and small.
The course identifies criteria for improving the engineering properties of soils used for pavement base courses, subbase courses, and subgrades through the use of additives, which are mixed into the soil to effect the desired improvement. When added to the soil in the proper quantities, additives can improve soil strength, texture, workability, and plasticity. Chemical additives such as portland cement, lime, fly ash, and bitumen will be discussed. The course also covers several testing methods and American Society for Testing and Materials (ASTM) standards, enabling students to determine the best form of soil stabilization for a broad spectrum of applications.
The student must take a multiple-choice quiz consisting of thirty (30) questions at the end of this course to earn PDH credits.
Upcoming start dates
- Self-paced Online
Who should attend?
Certificate of Completion
You will be able to immediately print a certificate of completion after passing a multiple-choice quiz consisting of 30 questions. PDH credits are not awarded until the course is completed and quiz is passed.
This course teaches the following specific knowledge and skills:
- Why geotechnical engineering problems have multiple correct solutions
- The use of bearing capacity equations for footings of various shapes
- Different forms of soil stabilization
- Improvements achieved through stabilization
- The use of lime in stabilization measures
- Different types of limes and their uses
- Scarification and compaction processes
- Use of slurry mixes
- Methods to determine the compaction density of soil
- Recommended application rate of a bituminous membrane
- How the Gravimetric Method is used
- Ideal temperature for cold mix construction
- Additives that can be used in soil stabilization
- Preferred methods of curing
- Uses of Class C fly ash
- How to classify potential swell
- Uses of types I, IA, II and III cements
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