Crushed stone / gravel Crushed stone and gravel are coarse aggregates commonly used in concrete mixes and beneath pavement as structural support. They improve strength, drainage, and load distribution.
Although both materials serve similar purposes, crushed stone has angular surfaces created by mechanical crushing, while gravel is naturally rounded. The choice depends on engineering requirements and intended use. In pavement construction, these materials are also widely used in base layers to provide stable support beneath concrete.
Frequently Asked Questions About Crushed stone / gravel
What is the difference between crushed stone and gravel?
Crushed stone has angular faces produced by mechanical crushing. Gravel is naturally rounded by water action.
Which is better under a sidewalk?
Angular crushed stone generally interlocks better and resists shifting, which is why it is commonly specified for compacted base layers.
What role do they play in concrete?
As coarse aggregate they provide bulk and strength, and beneath pavement they distribute loads and improve drainage.
How thick should the stone base be?
It depends on the specification and soil conditions. Follow the approved project detail rather than a general rule of thumb.