Concrete Aggregate
Concrete Aggregate Rip Rap
Rip rap is large, loose stone dumped along shorelines, creek banks, ditches, and bridge abutments to stop moving water from washing the ground away. The pieces run big and angular, usually anywhere from 6 inches to 2 feet across, and each stone weighs enough that current, waves, and ice can't roll it. You place it, water hits it, and the bank behind it stays put.
The stone itself is usually granite, limestone, or crushed concrete, since hauling rock this heavy any real distance gets expensive fast. Sizes get sorted into classes (R-3 through R-8, or Class I through IV, depending on which state DOT you're following), and the class you need goes up as the water gets faster or the slope gets steeper. Figure about 1.5 to 1.7 short tons per cubic yard once it's placed, and figure the driver needs room to dump straight from the truck. These stones are too heavy to shovel by hand.
Compare every grade
| Grade | Size | Shape | Washed | Top use | We deliver |
|---|---|---|---|---|---|
| Rip Rap (4″ To 8″, Concrete, Blue) | 4" To 8" | — | — | Erosion control | Reference only |
| Rip Rap (6″ To 12″, Concrete, Brass) | 6" To 12" | — | — | Erosion control | Reference only |
| Rip Rap (8″ To 18″, Concrete, Brown) | 8" To 18" | — | — | Erosion control | Reference only |
What people use it for
How to choose within concrete aggregate rip rap
Match the mix design
Batch plants and ready-mix trucks work to a spec. Confirm the size and gradation the plant is running before you order.
Coarse vs. fine
Coarse aggregate gives the mix its strength; fine aggregate fills the gaps. A slab needs both — usually delivered separately and blended at the plant.
Cleanliness matters
Fines and clay contamination weaken the cure. If a load looks dusty, ask for a wash spec sheet before you take delivery.
All concrete aggregate rip rap grades
Other concrete aggregate families
Concrete Sand
ReferenceConcrete sand is a coarse, washed sand screened to a specific size range so it works in a concrete mix.
Concrete Aggregate Sand
ReferenceConcrete sand is a coarse washed sand with grains up to about 3/8 inch across.
Concrete Aggregate 57 Stone
Reference#57 stone is crushed rock screened to fall between about 1 inch and 1/4 inch, with the fines washed out.
Concrete Aggregate 67 Stone
Reference#67 stone is crushed rock screened between about 3/4 inch and 1/4 inch, with the fines washed out.
Concrete Aggregate Gravel
ReferenceConcrete aggregate gravel is washed, rounded rock sized to mix into concrete.
Recycled Concrete
ReferenceRecycled concrete is old concrete that's been broken up and crushed back down to gravel size.
Concrete Aggregate 1 Stone
Reference#1 stone is one of the biggest sizes of clean crushed rock you can buy, with pieces roughly 1 1/2 to 4 inches across.
Concrete Aggregate 3 Stone
Reference#3 stone is crushed rock sized between about 1 1/2 inches and 2 inches.
Concrete Aggregate 4 Stone
Reference#4 stone is crushed rock that runs about 1½ inch down to ¾ inch.
Concrete Aggregate 8 Stone
Reference#8 stone is small crushed rock, roughly 3/8 inch down to the size of coarse sand.
Concrete Aggregate 89 Stone
Reference#89 stone is small crushed rock, sized between about 3/8 inch and the coarse-sand range.
Concrete Aggregate Crushed Stone
ReferenceConcrete aggregate crushed stone is the coarse rock that goes into a concrete mix.