Bitumen Tank: Understanding the Components, Functions, & Types

Bitumen tanks are a critical component in the construction industry. Their primary function is to store liquid asphalt to maintain its optimal condition. These systems are designed to regulate the temperature and quality of the bitumen throughout the storage and distribution process.

In the road and infrastructure construction industry, bitumen tanks help maintain material quality and support operational efficiency. To fully understand their functions, types, components, and implementation, read the explanation in this article!

What Is a Bitumen Tank?

A bitumen tank is a specialized container or storage system used to keep bitumen (liquid asphalt) at a specific temperature to keep it in a liquid state and ready for use.

Bitumen is a thick hydrocarbon material widely used in the construction industry, particularly for road construction (hot-mix asphalt).

Given bitumen's tendency to harden at low temperatures, bitumen tanks are equipped with heating systems and thermal insulation to maintain a stable viscosity.

Generally, the functions of a bitumen tank include:

Storing bitumen in safe and controlled conditions.
Maintaining the temperature to keep the bitumen liquid.
Facilitating the distribution of bitumen to the production process.
Preventing contamination and degradation of material quality.

Bitumen Tank Components

A bitumen tank consists of several key components that work together to maintain the temperature, quality, and safety of liquid asphalt storage. These components are as follows:

Tank body: The main structure that serves as a storage vessel for bitumen. It is typically made of special steel that is resistant to heat and pressure.
Heating system: Located at the bottom of the tank, it keeps the bitumen liquid. Heating methods can include direct combustion, thermal oil, or electricity.
Temperature control system: Uses sensors and a control panel to monitor and regulate temperature, ensuring optimal bitumen-heating conditions.
Insulation layer: A layer that covers the tank to reduce heat loss and keep the temperature inside the tank constant and efficient.
Mixing system: Some bitumen storage tanks are equipped with a mixing system to prevent sedimentation and ensure even heat distribution and bitumen mixing.
Safety features: Includes safety valves, pressure gauges, and an emergency shutdown system to prevent overpressure risk and ensure operational safety.
Supporting accessories: These include pumps, valves, and temperature-monitoring devices that assist with the distribution process and facilitate tank maintenance.

Types of Bitumen Tanks

Bitumen storage tanks come in various types designed to accommodate mobility, construction design, heating methods, functions, and capacity. Here is a detailed explanation:

1. Based on Mobility

Based on mobility, bitumen storage tanks are categorized as follows:

Fixed tanks: Permanently installed at locations such as Asphalt Mixing Plants (AMPs) and used for long-term storage.
Mobile tanks: Designed to be more flexible and easily movable, making them suitable for construction projects that are temporary or move to different locations.

2. Based on Construction Type

In terms of shape and installation, liquid asphalt tanks are divided into three types. Here is the explanation:

Horizontal tanks: Installed horizontally and generally have large capacities. Widely used in industrial settings because they are stable and easy to fill.
Vertical tanks: Installed vertically to save space, making them ideal for areas with limited land.
Container-type bitumen tanks: Adopt ISO container standards to make them easy to transport, move, and stack. This type of bitumen storage tank is more efficient for use in projects with high mobility.

3. Based on the Heating System

Based on the heating method, bitumen storage tanks are categorized as follows:

Tanks with direct heating: In these tanks, the bitumen is heated directly using a burner.
Tanks with thermal oil heating: These use thermal oil as an indirect heating medium. This system provides more even heat distribution.

4. By Function

Based on their intended use, liquid asphalt tanks can be categorized as follows:

Storage-specific tanks: Designed for long-term storage with a focus on temperature stability and bitumen quality.
Transport-specific tanks: Specifically designed for transporting bitumen with additional safety features to ensure the material remains stable and secure during transit.

5. Based on Capacity

Capacity is the most common classification criterion for bitumen storage tanks. Although there are no fixed standards, here is a general overview:

Small tanks: Up to 25,000 liters.
Medium-sized tanks: 25,000–80,000 liters.
Large tanks: Over 80,000 liters.

Applications of Bitumen Tanks

Bitumen tanks play a crucial role in supporting the asphalt supply chain, from the processing stage to on-site application. Here are some examples of their implementation:

1. Bitumen Refining and Distribution

During the refining and distribution stages, liquid asphalt tanks serve as the primary storage point before the asphalt is distributed to various locations. Large-capacity vertical tanks are used to store the refinery’s output, helping maintain stability.

During storage, temperature control systems and protective measures, such as nitrogen in the tanks, help prevent oxidation and maintain the bitumen's quality.

Additionally, the tanks are equipped with pumps, piping networks, and measurement systems to support precise and efficient distribution to various modes of transportation, such as trucks, trains, and ships.

As #YourGrowthPartner, Chandra Daya Investasi, through Redeco Petrolin Utama (RPU), offers integrated industrial infrastructure solutions to support bitumen storage and distribution in Indonesia by constructing bitumen tank facilities with a total capacity of 12,000 m³.

The facility consists of three tanks with capacities of 3,000 m³, 4,000 m³, and 5,000 m³, respectively, with operations scheduled to begin in the third quarter of 2026. RPU will manage a total of 75 storage tanks designed for petrochemicals, crude oil, and bitumen.

Additionally, RPU provides port and petrochemical storage solutions that strengthen the logistics network and improve supply chain efficiency.

Currently, RPU operates two berths, each with a 200-meter LOA, capable of serving vessels up to 35,000 DWT with a draft of up to 10 meters. Furthermore, there are 72 storage tanks with a total capacity of approximately 130,000 m³, meeting international safety standards.

RPU also provides various supporting facilities, such as a Centralized Fueling Station for tankers equipped with a Customer Order Service system to ensure smooth operations.

2. Asphalt Mixing Plant

The bitumen tank in the asphalt mixing plant serves as both a storage center and a supplier of liquid asphalt to the production process. This tank keeps the bitumen in a liquid state through a heating and insulation system, ensuring the liquid asphalt is ready for use at any time.

With the support of an automatic control system, the liquid asphalt tank can be connected to various pieces of equipment in the mixing plant to ensure precise bitumen flow.

This integration enables the precise mixing of asphalt, aggregates, and additives, resulting in high-quality asphalt mixtures that meet road construction standards.

3. Construction and Waterproofing

In road construction, bitumen tanks are used to ensure a continuous supply of liquid asphalt is available directly at the project site. The use of mobile tanks enables more efficient asphalt distribution to paving machines with minimal temperature loss.

In waterproofing projects, bitumen tanks are used to store and heat asphalt for application as a waterproofing layer, particularly on building roofs and industrial facilities.

With a heating system and high-pressure spraying, asphalt application becomes more even, improving resistance to leaks and protection against extreme weather.

That concludes the information on bitumen tanks, from their definition, function, and types to examples of their practical application in the field, which is important for you to know.

If you need a safe and reliable bitumen storage solution, trust Chandra Daya Investasi and Redeco Petrolin Utama to meet your needs!