2.14 : 石積み舗装

Masonry pavings are used in pedestrian walkways, building entrances, patios, and sometimes in driveways.

It is constructed using bricks, stones, and concrete masonry units of different shapes and colors, with adequate strength and resistance to abrasion and weathering.

These paving units are laid over a settling base spread over a base layer.

The settling bed consists of a one to two inch thick layer of sand, pea gravel, or finely crushed stone that helps level the paving units.

The rigid base layer of pavements subjected to heavy vehicular loads may be made of reinforced or unreinforced concrete.

Whereas pedestrian pathways use a semi-flexible base layer made of asphalt or bituminous concrete or a flexible base layer made of gravel or sand.

For permeable paving, rainwater falling on the pavement is allowed to pass through it and infiltrate into the soil underneath it, thereby minimizing the runoff into stormwater drains.

This is ensured by spacing the units with sand or planted soil between them or using porous pavers, such as pervious concrete or open paving blocks.