Installing concrete paving blocks involves careful preparation and execution to ensure a durable and level surface. The process begins with preparing the site and establishing a solid foundation.
Site Preparation & Compaction
The first critical step is to excavate the area where the paving blocks will be laid. This involves removing the existing soil to the required depth. Following excavation, the area must be thoroughly compacted. Compaction is essential to create a stable sub-base that will prevent settling and shifting of the pavers over time.
Establishing the Starting Point
To ensure your paved area is square and your pattern lays out correctly, it's vital to establish a 90º starting point. This provides a true reference line for laying the first course of blocks and subsequent rows.
Base Installation
A robust base layer is fundamental for the longevity of concrete paving blocks. The base material should be installed in 2-4″ layers. Each layer must be compacted before the next is added. Suitable base materials include 1 1/2″ processed gravel or 3/4 crusher run. Compacting in layers ensures maximum density and stability.
Installing Edge Restraints
To contain the paving blocks and prevent them from shifting outwards, install edge restraints directly on the base. These restraints are typically made of plastic or metal. Secure them firmly using 10″ steel spikes driven into the compacted base material. Edge restraints provide crucial lateral stability to the entire paved area.
These initial steps — excavation, compaction, base installation, and securing edge restraints — form the foundation for a successful paving block installation.
Summary of Key Steps (Based on Reference):
- Excavate and thoroughly compact the area.
- Establish a 90º starting point.
- Install and compact base in 2-4″ layers (using 1 1/2″ processed gravel or 3/4 crusher run).
- Install edge restraints directly on the base and secure with 10″ steel spikes.
Following these steps will help create a stable and well-defined area ready for the placement of concrete paving blocks.
