What Are Aggregates and How Are They Used?

While seeming fairly dull on the face of it, aggregates are actually a vital component of all major construction materials. In fact, without aggregates, the built environment simply would not exist. 

In this article, we’ll take you through some aggregate basics, including what they are, how they can be used and what the main types are. 

What are aggregates? 

Aggregates are the most basic material used in construction. They refer to any raw rock material that is granular and inert. They come in a range of sizes and are usually produced from natural sources. When they are mixed or bound with other substances, for example water or cement, they form materials that can be used in building applications. 

What are aggregates used for? 

Thanks to their use as a key component in concrete, mortar and asphalt, aggregates are used in major construction projects throughout the world, giving building materials their bulk, strength and thermal properties. On their own, they can also be used for decorative purposes on driveways and flowerbeds, or for filling voids. 

What are the main types of aggregates? 

There are multiple types of aggregates available on the market, each with their own unique properties and applications. Some key types of aggregates include: 

Sand

A fine and naturally-formed aggregate that can be used in the creation of concrete. There are a range of different sands available, such as drainage sand to support water movement, builders sand for strong and practical purposes, and sharp sand for laying block paving and patios. 

Shingle

Also known as gravel, shingle consists of small stones that are either formed by natural weathering processes or removed from rock quarries and crushed down to a usable size. The uses of shingle are wide-reaching and can include drainage, landscaping and building. 

Crushed rock

As you would expect, crushed rock is simply extracted rocks which are crushed down to intended size and texture. They are usually produced in quarries, and are used in a wide variety of applications such as surfacing and foundations. 

Recycled materials

Aggregates that come from recycled sources and that are sourced sustainably and responsibly, allowing you to boost the green credentials of your project. They are usually hard-wearing, load-bearing and affordable, making them a great all-round aggregate that doesn’t cost the earth. 

Ballast

A unique blend of sand and rock, ballast is a multi-purpose and stable aggregate used in footings, foundations, paths, hardcores, concrete and sub-bases. 

Now we’ve explored the main types of aggregates available to you, let’s find out how you can get hold of them for your project. 

Where can you get aggregates?

It’s important to choose an aggregate supplier who can provide the full range of options, as well as friendly advice on which aggregate may be suitable for the project. 

Here at Chargrace Soils, we provide aggregates of all types, including responsibly-sourced recycled options in all quantities – and all delivered directly to your door. As a family-owned and operated company, we always put our customers and the planet as our top priorities, and you can trust in our services time and time again. 

Get in touch with Chargrace Soils today for dependable aggregate supply across the UK, including our local areas of Sevenoaks, Bromley and Kent.