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Aggregate Testing

Gradation and Size (19)

Welcome to the Gradation and Size course. This course describes basic terminology and gradation testing associated with the maximum aggregate particle size and distribution of individual particle sizes within a mixture. This includes gradation terminology, a description of the gradation chart and 0.45 power graphs, basic procedures for the standard gradation (sieve) test, and an examination of typical results.
  • Overview
  • Background
  • Importance of Gradation and Size
  • Gradation Graphs
  • Maximum Density Gradation
  • fuller-thompson.swf
  • The 0.45 Power Maximum Density Graph
  • Gradation Types
  • Maximum Aggregate Size
  • Gradation Terms
  • Gradation Specification
  • Test Description
  • Summary
  • Approximate Test Time
  • Basic Procedure
  • Results
  • Parameters Measured
  • Specifications
  • Typical Values
  • Calculations
  • Percentage Retained on Each Sieve
  • Percentage Passing Each Sieve
  • (Quiz) Gradation and Size
Completion rules
  • All units must be completed
  • Leads to a certificate with a duration: Forever