Aggregates are a granular mix used for various construction and landscaping projects. Popular examples of aggregate include sand, gravel, crushed gravel, and recycled concrete. 

Aggregates are a key material in many types of infrastructure and represent the largest quantity of any building material in the construction industry. 

From helping with aesthetic driveways to durable high-rise buildings, aggregates are very versatile. With their many uses in the construction and landscaping industries, learning which aggregate is best suited for various applications can be a bit of a minefield. 

Aggregates are an essential component for holding structures together, but how do you choose the right aggregate for your construction project? Start by checking its quality.

In this article, we’ll explore some of the main factors that can help you check aggregate quality and choose the right aggregate for your project.

1) Abrasion and Skid Resistance

When you check aggregates for quality, you will need to evaluate their abrasion and skid resistance. These properties help you understand an aggregate’s resistance to wear and tear and how it performs with friction. 

You need to consider these essential factors when you’re selecting materials for surfaces such as roads and driveways, which are expected to see heavy levels of traffic. Surfaces that are regularly subjected to abrasions will require aggregates with excellent wear and tear resistance. 

A smooth texture often helps improve workability, whereas a rougher surface can enhance an aggregate’s strength. Aggregates with high abrasion resistance can improve the longevity and safety of surfaces. 

You can always test aggregates to measure their resistance and choose those that will maintain their integrity under heavy use. 

2) Absorption and Surface Moisture

Another key factor to consider when you’re checking aggregate quality is their absorption capacity and surface moisture. Absorption measures the amount of water your aggregate can take in, without affecting its strength and workability. 

Too much absorption may weaken your mix, while too little can result in poor bonding. The surface moisture in aggregate can also significantly influence the durability and strength of your mix. 

Use a moisture metre to check your aggregate’s surface moisture content and absorption. By controlling surface moisture, you can ensure consistency in your mix. You’ll be able to prevent unexpected issues and create strong and durable structures when moisture levels are properly managed.

3) Durability and Toughness

The durability and toughness of your chosen aggregate are also essential factors you need to consider when beginning any project. 

Many buildings and road structures are subject to heavy impacts such as heavy rain and moving footfall. Durability and toughness are key properties that ensure your aggregate can withstand these conditions. 

Through certain tests, such as the Aggregate Impact Value (AIV) and Aggregate Crushing Value (ACV), you can assess these properties and make informed decisions. 

Durable aggregates enhance the longevity and resilience of structures. For this reason, you need to select tough aggregates to minimise damage and repairs. This will enable you to construct safer and more reliable structures that can withstand harsh environmental conditions. 

4) Grading

Grading is the size distribution of aggregate particles and is measured using sieve analysis. Proper grading helps ensure an ideal particle size range to increase the strength and workability of your mix.

Well-graded aggregate creates a compact, dense mix that enhances structural integrity. Using poorly graded aggregates may lead to issues, such as segregation and voids, that could negatively impact your structure.

When you’re checking aggregates for quality, look for well-graded aggregates to reduce the risk of voids and maintain quality control.

5) Unit Weights and Voids

Lastly, when you check aggregate quality, don’t forget to consider unit weight and void content as well. 

Unit weight allows you to measure the density of aggregate. Void content helps understand the amount of empty space within a given amount of aggregate.

By using aggregates that have appropriate unit weights and minimal voids, you can create a dense and strong mix. Overlooking these factors could result in a less durable and potentially weaker construction.

By keeping a close eye on these factors, you can ensure that your structure is able to maintain structural integrity. 

For High-Quality Aggregates, Contact Middleton Aggregates

The quality of aggregates largely depends on how they’re processed. However, as you will now have learned, there are still many factors that you can use to check aggregates and ensure they deliver the best results. 

By checking aggregate quality prior to construction, you can build structures that are durable, safe and long-lasting.

If you require high-quality aggregates for your next project, we can help.

At Middleton Aggregates, we produce and supply aggregates, fill materials, and plant hire services for various landscaping and construction projects. 

Situated at Blackborough End, King’s Lynn, with multiple outlets present across Norfolk, we’re well-equipped to deliver our friendly and professional service to the Norfolk, Cambridgeshire, Lincolnshire, and Suffolk areas.

Trust us to provide expert advice along with a reliable service that helps your projects stand on a solid foundation.

For more information on our products and services, visit our website or contact us to find out more.