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What are Aggregates and Why Do They Need the Vibrating Screen?

On many construction sites, workers require aggregates, especially when working on cement laying. But what are aggregates?

These are raw natural materials often extracted from quarries and pits. These come in many forms like sand, stone, and gravel. To bond together, it requires a medium to become a compound material like asphalt concrete. The binding medium used can be either of the following: asphalt, cement, or water. 

In the Philippines, most structures that you see wouldn’t be possible without this material. Our infrastructure, too, is very dependent on aggregate suppliers, with a majority of our asphalt pavement and concrete sidewalks composed of aggregates.

Keep reading to learn more about this essential material in the construction industry. 

Why are aggregates important? 

Aggregates are used as key ingredients for many kinds of materials in construction like mortar, asphalt, and concrete. They possess characteristics that make them an essential ingredient for roads, buildings, sidewalks, runways, and rail tracks. 

When using crushed aggregates, workers are able to produce better concrete mixes. Adding crushed aggregates to mixes makes them more compact and water-resistant, decreasing their overall permeability. In addition to that, it is able to retain heat at higher levels. 

Most construction projects carefully choose where they obtain their aggregates in addition to their type and size. In the next section, we enumerate the various kinds of construction aggregates to determine what construction projects they are best applied to. 

Types of Aggregates 

Types of Aggregates 

There are many ways you can classify aggregates. It can be their origin, size, and composition. By understanding these different types, construction workers will be able to maximize the potential of each kind. 

Crushed Concrete

It’s best applied for filling jobs like tranches, backfills, and over-site fills. It can also be used as a granular sub-base for areas over 150 mm. 

For residential applications, this can be used to build paths in gardens as well as raised garden beds. This is made mostly of recycled material by gathering particles and rocks from demolished sites. 

Sometimes, excess waste is also collected from construction projects and turned into cursed aggregates. 

Sand

A sand aggregate is used for landscaping, brick manufacturing, water filtration, and agriculture. It can also be used by gardeners for landscaping. This is one of the most abundant form aggregates. It is a common choice for many construction projects because of its strength and bulkiness. 

Gravel

These are rock fragments that are either found near different geographical formations like streams and rivers. It can also be man-made where large pieces of rock are crushed until irregular fragments are formed. This is used for asphalt on roads, parking areas, and driveways. 

Topsoil

An aggregate that is formed on the ground. This is rich soil that has been filtered to get rid of various contaminants. This can only be used for landscaping especially if the goal of the project is to grow a lush garden. 

Ballast

This is one of the coarse aggregates made from crushed stone and burnt clay. It is usually used for concrete mixes or specific construction tasks like filling in gaps. Aside from construction, this can also be used for boats, ships, and racecars as a stability aid. 

Why do you need a vibrating screen for aggregates? 

Why do you need a vibrating screen for aggregates? 

Aggregates are not used in their most natural form on construction sites. It needs to undergo a process in order to reach the specifications of various tasks. That process is called screening. 

When aggregates are screened, they are separated into uniform sizes. It is usually accomplished through the use of vibrating screens. After the materials undergo primary crushes, a vibrating screen made of multiple decks separates these further depending on the project’s requirements. It can go up to secondary and tertiary stages of crushing through vibrating screens. 

To accomplish this screening process, the vibrating screen creates motion that tumbles and vibrates. This allows the feed to be divided into various sizes. They are filtered by using detachable screens that particles pass through. The largest particles remain at the top while smaller particles pass through the various screening media. 

These vibrating screens are used to effectively sort various sizes of commercial aggregates, such as G1, ¾, 3/8, and S1.

Key Takeaway

Now that you know what aggregates are, you can find the right materials for various construction projects. These can easily be achieved with the help of vibrating screens. With the help of detachable screens, you can achieve the specifications needed for the job. 

The best vibrating screens by Rubble Master are available here at Multico. Contact us here so that we can provide you with the best construction equipment in the Philippines. We are a one-stop shop for all your construction needs.

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