Because of its strength and capacity to tolerate high traffic volumes, asphalt concrete is a material that is frequently used in road construction. The specific weight and density of asphalt concrete are two crucial characteristics to take into account. Knowing these properties aids in assessing the strength, stability, and general performance of the material under different circumstances.
The weight of the asphalt concrete per unit volume is referred to as specific weight, and it is commonly stated in kilograms per cubic meter (kg/m3). For engineers and construction experts, this attribute is essential because it affects the way pavements and other structures are designed and how much weight they can support. Accurate calculations made during the planning and construction stages are made possible by knowing the precise weight, guaranteeing that the final product satisfies all applicable requirements and standards.
Density, which is directly tied to specific weight, gauges how compact asphalt concrete is. It is also measured in kilograms per square meter and is essential to the behavior of the material under load. A denser material is stronger and more compact, and it is less likely to break or deform when subjected to pressure. A long-lasting and durable surface is ensured by properly compacted asphalt concrete, which lowers maintenance requirements and lengthens the life of roads and highways.
For construction projects to be successful, precise measurement and management of the specific weight and density of asphalt concrete are crucial. Construction teams can choose the right materials, apply the best compaction techniques, and design the project as a whole by knowing these qualities. This information aids in the development of long-lasting, safer, and more dependable infrastructure.
- The composition of the asphalt and its variety
- Why do you need to know the weight of 1 cubic meter of asphalt
- Specific gravity in 1m3
- Video on the topic
- Lesson 28 (main). Calculation of the mass and volume of a body by density
- The proportion of metals and alloys
- Types of asphalt concrete: how to understand the name and choose the right one? Selection of asphalt concrete composition.
- Asphalt concrete mix design systems
The composition of the asphalt and its variety
Bitumen combined with mineral components is what makes asphalt, a material that can be natural or artificial. These include sand, crushed stone, and other additives like rubber, latex, ash, and sulfur that give the material useful properties and boost the final coating’s strength and hardness.
The size of crushed stone fractions and other additives, the degree of cleaning, and the ratio of component parts define the properties and application of asphalt.
- resistant to chemical reagents;
- durable;
- frost and waterproof;
- environmental;
- Fire safety.
Different types of asphalt exist.
It may be: based on origin
- Natural. This is a material of natural origin. It has a low melting point. When heavy components of oil mix with natural minerals solidify, a hard coating is formed.
- Artificial or asphalt concrete. This is a bitumen-based mixture with natural components. Asphalt concrete compositions use an artificial compound obtained during oil refining. The proportion of bitumen is 5-6 percent.
- Sandy – fraction size up to 10 mm. Used for the construction of sidewalks and pedestrian paths.
- Fine-grained – up to 20 mm. This asphalt is used to cover the top layer of the road surface. Not subject to temperature changes.
- Coarse-grained – more than 20 mm. Used as the bottom layer of the road surface. Have a rigid structure.
- Colored — thanks to pigments and lightened bitumen, they give the surface a decorative character. Intended to draw attention to traffic safety near special facilities. Highly expensive.
- Rubber — contain rubber additives that increase the strength of the material. Expensive to use.
- Asphalt granulate, or asphalt chips. Recycled raw materials are added instead of crushed stone. The chips are crushed. Such a mixture is applied to the bottom surface of the building under construction. Due to recycling, the material is much cheaper.
- dense — fraction size of 5 mm — used for the top layer of the road surface;
- porous — laid in the base;
- highly porous — 15-40 mm — used for the construction of high-traffic routes.
Based on how it is laid, the material is separated into:
- Cold. Used for repair work. Laid manually. No seasonal restrictions. Can be used at temperatures from -40…+40ºC.
- Hot. Traditional method.
Choice for creating the road surface’s lowermost layer.
Why do you need to know the weight of 1 cubic meter of asphalt
Knowing how much material you’ll need is essential for laying work. You must ascertain the composition’s weight in kilograms and the asphalt concrete mixture’s specific gravity in order to accomplish this. Determine the consumption rate by dividing the material’s mass by its specific gravity.
You can find information about asphalt indicators at the manufacturer or in specific tables. One cubic meter has an average density of 1,200 kg.
With the use of this information, you will be able to accurately calculate costs and prevent delays in the process of installing asphalt concrete. Avoid unforeseen transportation expenses and delayed plan completion.
Knowing the material’s volumetric and specific gravities when breaking down the road surface will help you determine how much equipment and lifting capacity are needed to remove the broken-down asphalt.
It is also helpful to know this information when working in private courtyards.
Specific gravity in 1m3
The density and specific gravity of asphalt are its primary properties.
The first is dependent on the mixture’s composition and production process.
Type | Kg |
Fine-grained | 2,330 |
Natural | 1,100 |
Cast | 1,500 |
Asphalt concrete mixture (depending on the size of the fractions) | 2,000 – 2,450 |
Pressed | 2,000 |
Asphalt chips (depending on the size) | 1,800 – 2,000 |
Cold | 1 100 |
Hot | 1,200 |
Removed | 2,400 |
One of the highest specific gravities is found in fine-grained asphalt concrete.
Type of Asphalt Concrete | Specific Weight (kg/m³) |
---|---|
Standard Asphalt Concrete | 2300-2500 |
Porous Asphalt Concrete | 1800-2200 |
Dense Asphalt Concrete | 2400-2600 |
For numerous building and engineering projects, it is essential to comprehend the precise weight and density of asphalt concrete. These characteristics have a direct impact on the material’s overall performance, strength, and durability. The density of asphalt concrete, which normally varies from 2,200 to 2,400 kg per cubic meter, is useful in determining the quantity required and guarantees the structural soundness of roads and pavements.
Asphalt concrete’s specific weight is significant because it influences the material’s behavior under various loads. It assists in determining the surface’s load-bearing capacity, which is important when building roads because the material must endure high traffic. Precise assessments and computations of these attributes result in enhanced project results and a more economical utilization of resources.
Engineers can choose the right materials and create effective designs by having a thorough understanding of these essential characteristics. This guarantees the long-term safety, affordability, and durability of the built roads and pavements. Understanding specific weight and density is a basic component of civil engineering and is crucial to the accomplishment of building projects.
When building, the density and specific weight of asphalt concrete play a critical role in defining the overall performance, strength, and longevity of roads and pavements. Engineers can design and construct structures that can withstand heavy loads and adverse weather conditions by having a thorough understanding of these properties, which are expressed in kilograms per cubic meter (kg/m³). This article examines how asphalt concrete density is determined, typical values, and the significance of these measurements for maintaining durable and safe infrastructure.