ASTM C128 Standard Test Method for Density, Relative Density (Specific Gravity), and Absorption of Fine Aggregate -- eLearning Course
About the Course
This course covers the determination of relative density (specific gravity) and the absorption of fine aggregates. The relative density (specific gravity), a dimensionless quality, is expressed as oven-dry (OD), saturated-surface-dry (SSD), or as apparent relative density (specific gravity). The OD relative density is determined after drying the aggregate. The SSD relative density and absorption are determined after soaking the aggregate in water for a prescribed duration.
The course takes approximately 1 hour to complete and includes instructional video content, interactive knowledge checks, and a self-grading quiz. Downloadable resources include a pdf of the standard.
Learning Outcomes
By the end of this course you will be able to:
- Identify apparatus used for determination of relative density (specific gravity) and the absorption of fine aggregates.
- Recognize steps for sampling and specimen preparation as outlined for ASTM C128, including those for testing for surface moisture of sample.
- Recall steps for both the gravimetric and volumetric procedures for determination of relative density (specific gravity) and the absorption of fine aggregates.
- Identify equations used for calculating relative density and absorption.
- Recognize reporting requirements for ASTM C128.
Audience
Anyone who runs the C128 test method or who needs an understanding of the test method and how it is properly run.
ASTM Standards Referenced
ASTM C128
Certificate and CEUs
CEUs: .1 or 1 PDH
Certificate: A certificate is available upon successful completion of the course and an 80% or higher score on the exam.
Access
1 year online subscription for a Single User Only via username/password. Requires internet access.
For pricing for Multi-User access or for more information, please contact sales here or call 1-877-909-ASTM.