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A simple jar test can be used to gauge the proportion of fines in an aggregate product before acceptance.   
A simple jar test can be used to gauge the proportion of fines in an aggregate product before acceptance.   
Apparatus:  
Apparatus:  
*A large wide-mouthed jar - glass or clear plastic are both fine.
*A large wide-mouthed jar - glass or clear plastic are both fine.
*Tap water, and
*Tap water, and
*The aggregate to be tested.
*The aggregate to be tested.
Method:
Method:
# Collect approximately 5 cm of material in the jar (or at least two complete layers of 40 mm clear stone),  
# Collect approximately 5 cm of material in the jar (or at least two complete layers of 40 mm clear stone),  

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