POLYMERIC SAND & BASE MATERIALS
Whether you are installing brick pavers or flagstone, the materials you use will fall into three categories – Base, Bedding, or Jointing.
POLYMERIC SAND & BASE MATERIALS
Whether you are installing brick pavers or flagstone, the materials you use will fall into three categories – Base, Bedding, or Jointing.
Base Material is usually a limestone gravel mix. It will contain stone and fines so that it will pack into a firm base. This material is installed and compacted on top of the native soil. Proper compaction of this layer is critical to the durability of your project. Typical product names are 23A, 22A, Stonemix, or Stonecrete.
Bedding Material, or leveling, is usually a sharp, course sand or aggegrate. It provides a thin leveling or setting layer for the paver or stone to be installed in. It is screeded out on top of the compacted base. Another function of this layer is drainage. Typical product names are 2NS Sand, Limestone Fines or Slag Sand.
Jointing Material is fine, sharp, crushed sand or stone material, and is usually referred to as Joint Sand. It is swept in the gaps, or joints, of the brick pavers or stone and then compacted. It’s primary function is to improve the interlock and therefore the durability and stability of a paved surface. This sand usually comes bagged so that it is kept dry for easy installation. Jointing Sand comes in two basic forms – Regular and Polymeric Sand.