Limestone

1. Expired 16 years, 20 weeks and 5 days ago

# 4 DOT approved washed marl rock
o Gradation test results indicate the following screen retention percentages for the required material:
2 = 100%
1-1/2 = 90 100%
1 = 20 55%
= 0 - 15%
3/8 = 0 - 5%
Limestone
o Sedimentary rock composed of calcium carbonate formed by the accumulation and recrystallization of seashells
that have gone through some degree of change so the shells are not identifiable.
o Other materials such as granite are not acceptable

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