21AA Crushed Concrete

Characteristics

• 1/8" to 1-1/2" jagged concrete aggregate averaging 1/2"
• must contain 20% to 45% fines capable of passing through #8 sieve
• must contain at least 95% crushed material (many jagged edges)
• fines included providing a very compactable material
• material locks together well providing a tightly bound aggregate
• very resistant to erosion, especially after fully compacted

Uses

• driveways (especially on slopes)
• parking Lots
• decorative walk ways

21AA Natural

Characteristics

• 1/8" to 1+" jagged crushed stone averaging 3/4"
• must contain 20% to 45% fines capable of passing through #8 sieve
• must contain at least 95% crushed material (many jagged edges)
• fines and clay provide a very compactable material
• material locks together well providing a tightly bound aggregate
• very resistant to erosion, especially after fully compacted

Uses

• driveways (especially on slopes)
• often used as a top layer over a 22A base layer
• parking lots
• decorative walk ways

22A Crushed Concrete

Characteristics

• 3/8" to 1" jagged crushed concrete aggregate averaging 3/4+"
• must contain at least 25% crushed material
• less fines and crush than 21AA, provides a very compactable material
• material locks together well providing a tightly bound aggregate
• very resistant to erosion, especially after fully compacted

Uses

• driveway base course
• parking lots
• decorative walk ways

22A Natural

Characteristics

• 3/8" to 1" jagged crushed stone aggregate averaging 3/4+"
• must contain at least 25% crushed material
• fines made up of clay and crush pieces
• less fines and crush than 21AA, provides a very compactable material
• material locks together well providing a tightly bound aggregate
• very resistant to erosion, especially after fully compacted

Uses

• driveway base course
• parking lot base course
• temporary drives
• on level surfaces may be used as a final course

Agricultural Bedding Sand

Desired Characteristics

• meet ASTM C-33 grading spec
• all inorganic
• low compactability
• high porosity

ASTM C-33
Grading Requirements

Uses

• livestock stall bedding
• recyclable with the proper setup

References

• "Sand for Bedding Dairy Cow Stalls"

Asphalt Millings 5/8"

Characteristics

• 5/8" average aggregate size
• contains asphaltic cement that especially bind when hot and compacted
• used as a topping layer over unscreened asphalt millings
• dust free driving surface during dry periods
• material locks together well providing a tightly bound aggregate
• very resistant to erosion, especially after fully compacted

Uses

• driveway finish course
• parking surface when no storm system
• golf cart drives
• works very well on sloped surfaces as a final course

Asphalt Millings - Unscreened

Characteristics

• aggregates vary from 1/4" to 4 or 5"
• contains asphaltic cement that especially bind when hot and compacted
• used as a base layer under 5/8" asphalt millings
• without a topping layer, surface finishes bumpy
• material locks together well providing a tightly bound aggregate
• very resistant to erosion, especially after fully compacted

Uses

• driveway base course
• parking lot base course
• temporary drives
• sloped surface erosion protection

Crushed Concrete - Without Fines

Characteristics

• four graded aggregate products vary from under 1" to 6" for "Rip Rap"
• jagged edges provide a good interlocking mechanism
• all gradations provide excellent base material
• larger gradations (rip rap) used to stabilize muck, wet clay and
  other unstable sub grade materials
• coarser aggregates are usually topped with finer gradations for driving over
• highly resistant to erosion, especially after fully compacted

Uses

• driveway base course
• parking lot base course
• temporary drives
• sloped surface erosion protection

Crushed Stone - without fines

Characteristics

• five products range from 3/8" crush to 1-1/2" crush
• the absence of fines allows compaction and percolation
  where drainage through the applied layer is needed
• absence of fines provide lower dust levels
• material locks together well providing a tightly bound aggregate
• very resistant to erosion, especially after fully compacted

Uses

• driveway base to finish course depending on product selection
• parking surface when no storm system
• golf cart drives
• works very well on sloped surfaces as a final course

Crushed Stone - with fines

Characteristics

• aggregates vary from 3/8" to 1-1/2" in three different products
• contains fines to form a well graded compactable material
• is mostly impervious to water
• grades well to form a smooth and uniform surface
• the fines may partially erode in heavy rains on slopes until fully compacted

Uses

• driveway base or final course
• parking lot base or final course without a storm system
• temporary and permanent drives
• grades to a very smooth driving surface

Fill - Class II

Characteristics

• aggregate size from sand to approx 1/4"
• provides excellent drainage
• provides excellent base for compacted fill
• pleasing appearance

Uses

• structural fill under concrete
• beach sand
• landscape projects

Washed Stone - 6A

Characteristics

• aggregate size from 3/8" to 1"
• smooth natural stone provides excellent drainage
• will not compact - poor driving surface
• aesthetically pleasing for landscape projects

Uses

• drainage system beds and trenches
• around drywells and french drains
• landscape projects