Testing of industrial products - Aggregates for construction
Symbols
- Ab24
- Water absorption after 24 hours soaking
- C
- The average of the friction measurements obtained from PSV tests on four specimens made using the control stone
- Cc
- Percentage of crushed or broken particles
- Ctc
- Percentage of totally crushed or broken particles
- Cr
- Percentage of rounded particles
- Ctr
- Percentage of totally rounded particles
- Cr1
- Repeatability coefficient of variation
- CR1
- Reproducibility coefficient of variation
- d
- Lower size of an aggregate (mm)
- D
- Upper size of and aggregate (mm)
- F
- particle density of an aggregate (kg/m3)
- l
- liberation factor
- f
- particle shape factor
- g
- size range factor
- M
- Mass of a test portion (kg)
- m6 m7
- Masses used to determine acid-soluble sulfate
- N
- Number of laboratories
- pp
- Pre-dried particle density
- pssd
- Saturated, surface-dry particle density
- PSV
- The value derived from PSV tests on four specimens made using an aggregate, corrected using the results of PSV tests on four specimens made using the control stone (PSV = S + 52.5 - C)
- r1
- Repeatability limit
- R1
- Reproducibility limit
- S
- The average of the friction measurements obtained from PSV tests on four specimens made using an aggregate under test
- Sr1
- Repeatability standard deviation
- SR1
- Reproducibility standard deviation
- SSpec
- Between-test-specimen standard deviation
- t
- Tabulated value of the t-distribution
- W
- A range
- X
- A test result, or an average of some test results