- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 08 Oct 2020
Gravel in construction
The weathering and erosion of rocks is the natural process by which gravel deposits are formed. Gravel can also be produced in quarries known as gravel pits, where rocks such as sandstone, limestone and basalt are crushed down to size. Gravel particle sizes range from 2 mm to over 60 mm, and are available in a range of colours, textures and stone types.
Gravel, along with sand, is used for the manufacture of concrete, as well as for mixing with asphalt as part of road construction. It can be used as the base layer for roads before being covered with tarmac, and is also commonly used to surface roadways, especially those in rural areas and in icy conditions. It can also be used to as part of roof coverings.
Gravel can be used along with pebbles as a form of render known as pebbledash which is used for the external walls of a building in which the top coat is textured to create a rough finish. For more information, see Pebbledash.
Gravel can be used in the filtration of water, where it acts as a natural filter holding back precipitates which may contain impurities as well as other sand-sized particles. The angularity and hardness of gravel makes it resistant to water erosion.
 Related articles on Designing Buildings Wiki
Featured articles and news
The principles and art of the possible. Book review.
From horse and cart to hypermarket.
How elements and processes work together in a systems approach.
CIOB offers digital guide to proactive methods of working.
Tech will drive professional development in fields tied to infrastructure.
The idea for the structure emerged from the architect's dream.
Changing air tightness requirements prompt testing and revisions.
Government takes steps to revise building safety legislation.
Product can be 'grown' into bricks or used as a self-healing building material.
Anticipating COVID-19's continuing construction disruptions.
Availability payment arrangements involve project performance.
EU responds to COVID-19 with NextGenerationEU plan.