Bitumen 80/100 Density kg/m³ – Everything You Need to Know

Bitumen 80/100 Density kg/m³ is an important standard used in the construction and industrial sectors to determine material compatibility, functioning, and transportation needs. Bitumen typically has a density of 1010-1060 kg/m³ at 25°C. The density of Bitumen 80/100, a commonly used grade, ranges from 980 to 1050 kg/m³ depending on its composition and testing procedure.

What Is Bitumen Density?

Bitumen density refers to the mass for each unit volume, typically expressed in kg/m³ or g/cm³. This figure assists in evaluating the physical properties of bitumen, including flow, compaction, and suitability with aggregates.

Bitumen Density at 25°C

The standard reference temperature for testing bitumen density is 25°C, according to ASTM D70. At this temperature, bitumen behaves consistently enough to allow for accurate comparisons between grades.

Bitumen 80/100 Density and Meaning

Bitumen 80/100 is a penetration grade asphalt primarily utilized in road building, particularly in cooler areas because of its more pliable texture. The designation “80/100” refers to the penetration value, indicating that a needle penetrates 80 to 100 tenths of a millimeter when assessed at 25°C under standard conditions.

At this temperature, Bitumen 80/100 exhibits a density ranging from 980 to 1050 kg/m³, influencing its adhesion with aggregate and its viscosity in hot mix asphalt.

Why Bitumen Density Matters

Understanding the density of bitumen is crucial for:

• Mix design calculations in asphalt
• Transport logistics (weight-to-volume conversion)
• Storage planning in bitumen tanks
• Quality control across production batches

Factors Affecting Bitumen Density

Several factors influence bitumen’s density:

• Crude oil source
• Air-blowing and oxidation level
• Temperature and aging
• Additives and modifiers

For example, fully air-blown bitumen used in industrial applications may have a higher density than penetration-grade road bitumen.

Bitumen Density Testing Standards

The most widely accepted method for measuring bitumen density mostly is this but there also other ways of testing the density as well:

• ASTM D70 – Specific Gravity and Density of Semi-Solid Bituminous Materials

This standard ensures accuracy and consistency across suppliers and projects.

Applications Where Density Matters

High-precision density values are essential in:

• Road construction: Proper compaction and layer thickness depend on bitumen volume.
• Roofing and waterproofing: Density impacts material thickness and spread rate.
• Industrial uses: Electrical insulation, sealing, and corrosion protection depend on the flow characteristics tied to density.