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What is 1B stone ? 1B and #8 crushed stone is generally used in blacktop and concrete mixes and ranges in sizes 1/4"-7/16".

What is 2A Modified? 2A Modified is crushed stone that is 1.5" or smaller. This stone contains stone dust that helps with compaction when it is tamped down. 2A can be used to provide a based for paver pathways, fireplace bases, driveways, and more.

2B is a crushed clean quarry stone that is 7/16" - 1.25" in size. 2B stone does not compact well. Uses for 2B Clean stone: Providing bases for driveways and access roads that are wet or muddy French Drains Base Material for concrete work Retaining Wall Backfill

What is 2RC Non-PennDOT

What is 3" Minus crushed stone? Unlike clean 3" crushed stone, 3" minus crushed stone contains a range of particle sizes, including some that are smaller than 3 inches (7.62 cm). This means that some of the pieces may be 2 inches (5.08 cm), 1 inch (2.54 cm), or even smaller. 3" minus crushed stone is commonly used as a base material for roads, driveways, and parking areas. The range of particle sizes helps to create a stable and compacted base that can withstand heavy traffic and weight loads. It is also often used as backfill material for retaining walls, and as a subbase for concrete and asphalt paving. Because 3" minus crushed stone contains smaller particles, it is often more affordable than clean 3" crushed stone. However, its irregularity in particle size can make it more challenging to work with than clean crushed stone, and it may not provide as uniform of a surface or finish. Overall, 3" minus crushed stone is a versatile and economical building material that is commonly produced at stone quarries. Its range of particle sizes makes it an excellent choice for creating stable and durable base materials, but it may not be suitable for all applications where a more uniform finish is desired.