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Bitumen Penetration Grade – EU Standard – Bitumen 70/100

Penetration Grade Bitumen

EN Standard – Bitumen 70/100

Bitumen 70/100 is a softer grade of bitumen with a penetration range of 70 to 100 tenths of a millimeter. This grade is designed for applications in colder climates and areas with lighter traffic loads. Bitumen 70/100 offers excellent flexibility and adhesion properties, making it an ideal choice for regions where temperature fluctuations can cause surface cracking and other forms of pavement distress. 


Derived from the distillation of crude oil, Bitumen 70/100 undergoes a refining process that enhances its ability to resist cracking and aging. Its chemical composition and physical properties make it an effective binder for asphalt mixtures, ensuring the durability and longevity of paved surfaces even in challenging conditions.

Uses:

Bitumen 70/100 is used in a variety of construction and paving applications, particularly in regions with colder climates and lighter traffic volumes. Key uses include:
  • Residential roads: Ideal for residential areas where traffic is light and surface flexibility is essential to prevent cracking and other forms of distress.
  • Light traffic areas: Suitable for roads and pavements that experience low to moderate traffic, providing a smooth and durable surface.
  • Cold climate regions: Designed to perform well in colder temperatures, Bitumen 70/100 offers enhanced flexibility to withstand thermal contraction and expansion.

Quality Standard:

Bitumen 70/100 adheres to the stringent requirements set forth by the European Standard EN 12591. This standard guarantees that the bitumen meets specific criteria, including:
  • Penetration: Ensures the bitumen’s hardness and suitability for various applications.
  • Softening point: Indicates the temperature at which the bitumen begins to soften, ensuring it performs well under high-temperature conditions.
  • Flash point: A measure of the bitumen’s safety in terms of its volatility and risk of ignition.
  • Solubility: Ensures the bitumen is free from impurities that could affect its performance.
  • Adhering to these standards ensures that Bitumen 70/100 provides reliable and consistent performance across various construction projects.

Storage:

Proper storage of Bitumen 70/100 is crucial to maintaining its quality and effectiveness. Key considerations for storage include:
  • Temperature control: Maintain storage temperatures between 150°C and 180°C to prevent hardening and ensure the bitumen remains workable.
  • Containers: Store in steel containers or bitumen tanks designed to handle high temperatures and prevent contamination.
  • Environment: Ensure storage facilities are well-ventilated, dry, and protected from moisture to prevent oxidation and degradation.
  • Handling: Avoid prolonged storage at high temperatures and frequent temperature fluctuations, which can lead to the hardening and loss of essential properties.

Packing:

Bitumen 70/100 is available in various packaging options to meet the diverse needs of construction projects:
  • Bitutainer: For large-scale projects, bulk tankers provide a cost-effective and efficient means of transporting and storing bitumen.
  • Steel drums: Ideal for smaller projects or where precise quantities are required, steel drums offer a convenient packaging solution.
  • Jumbo bag: Suitable for easy handling and reduced contamination risk, polybag packaging provides a flexible option for bitumen storage and transportation.

Specification:

Description
Unit
Min
Max
Test method
Penetration at 25°C
1/10mm
70
100
EN 1426
Softening point, Ring & Ball
°C
43
51
EN 1427
Penetration Index
°C
-1.5
0.7
EN 12591
Fraass Breaking Point
°C
-
-10
EN 12593
Specific Gravity 25°C
Kg/cm3
1.00
1.10
EN ISO 3838
Flash Point COC, Min
°C
230
-
EN ISO 2592
Dynamic Viscosity at 60°C
Pas
120
-
EN 12596
Kinematic Viscosity at 135°C
Mm2/s
230
-
EN 112595
Solubility in TCE
&
99.0
-
EN 12592
Resistance to hardening RTFOT:
-
-
-
EN 12607-1
Increase in softening point
°C
-
9
EN 1427
Retained penetration at 25°C
%
46
-
EN 1426
Change in mass (absolute value)
%
-
0.8
EN 12607 -4

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