Road Base Road Base is a commonly used term to describe the upper-most layer of Gravel/Crushed Rock in a Road Pavement. Get a Quote Road Base Product: Road Base 1.5”Description: made from crushed limestoneUses: common use for driveways and patios ORProduct: Road Base 3/4”-DustDescription: made from crushed limestone Uses: ideal to install pavers and flagstone View fullsize Concrete Mix Product: Concrete MixDescription: Made from 50% sand and 50% ½ inch washed limestone Uses: Great for mixing with Alamo Cement View fullsize