Let's Get to Know Hotmix Asphalt, From Definition to Its Types

One type of asphalt that we commonly hear about is hotmix asphalt. This type of asphalt is commonly used for highways, residential roads, or can also be used on airport runways.

In this article, we will discuss many things about hotmix asphalt. Starting from the definition, advantages, uses, to its types. All of these can be seen as follows!

Definition of Hotmix Asphalt

According to various sources, hotmix asphalt is commonly defined as a type of asphalt made from a mixture of various materials. The materials used are Fine Aggregate (stone dust), Filler, and Coarse Aggregate (crushed stone or screening stone).

All these materials are then mixed and given a hot binder at high temperatures. To ensure all materials are well mixed, the mixing of all materials must be regulated by technical specifications. Out there, this type of asphalt is also known as concrete asphalt.

Advantages of Hotmix Asphalt

Hotmix asphalt has many advantages that make it used by many people. These advantages are:

Fast and Strong

Hotmix asphalt can be worked on quickly. This can make the paving work more efficient. Hotmix asphalt also dries quickly, so it can be used immediately. Hotmix asphalt also has strong durability. Especially, it is strong against extreme air temperatures and water.

Stable and Flexible

Hotmix asphalt also has stable and flexible properties. The stability of hotmix asphalt allows it to withstand traffic loads without experiencing deformation. Its flexible nature makes this asphalt not easily stretch, and provides comfort for drivers crossing it.

Uses of Hotmix Asphalt

As mentioned at the beginning of the paragraph, hotmix asphalt is commonly used for highways (whether with light, heavy, or moderate traffic), residential areas, or airport runways. Hotmix asphalt can also be used or installed in various weather conditions. Whether it is hot or rainy.

Types of Hotmix Asphalt

In the market, hotmix asphalt is available in various types. The types of hotmix asphalt itself are:

Asphalt Treated Base (ATB)

This first type of hotmix asphalt has a thickness of about 5 centimeters. Usually, this type of asphalt is installed at the top of a road construction.

Sand Sheet

This one has a thickness of about 2 centimeters. This type of hotmix asphalt is commonly used for road construction projects in residential areas or also in parking lots.

Fine Grade

Like the previous type of hotmix asphalt, this type can also be used for residential roads. However, this type of asphalt is commonly used for lower residential roads.

Asphalt Congreed Wearing Course (ACWC)

This type of asphalt, which is 4 centimeters thick, is commonly used on road surfaces with fairly heavy traffic.

Asphalt Congreed Binder Course (ACBC)

Like ACWC, this type of hotmix asphalt also has a thickness of 4 centimeters. The main function of this type of hotmix asphalt is as a second layer for ACWC or Laston 3 asphalt.

Laston 3

This asphalt, known as Hot Roller Sheet, has a minimum thickness of 3 centimeters. This asphalt is suitable for covering road surfaces with moderate traffic levels.

Thus, a number of important information about hotmix asphalt. From definitions to its types. Hopefully, it can add knowledge for friends who are encountering this type of asphalt for the first time. See you in the next article with equally interesting discussions!

Author: Anggie Warsito