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WHAT IS DIFFERENCE BETWEEN BITUMEN 60/70 AND 80/100 ASTM STANDARD AND BIUMEN A70 AND A90 CHINA GRADE?

Bitumen A70 & Bitumen 60/70Bitumen Penetration 80/100

BITUMEN PENETRATION 80/100

RAHA Bitumen Company is one of the suppliers and exporters of 80-100 grade bitumen, which in recent years has been able to occupy a good position in the export of this type of bitumen by selling 80/100 bitumen. RAHA Bitumen Company exports its bitumens in metal packages to the world markets. RAHA Bitumen Company offers the ability to provide all kinds of bitumen, including 80/100 bitumen, as soon as possible with the best quality and the most suitable price for buyers.

The price of bitumen 80/100 among bitumen produced for some European and Asian countries such as Turkey has great value and importance. Very good examples of 80/100 quality export bitumen have been produced and supplied in this region, which has led to the creation of very large markets. In this regard, you can buy and export very good samples of this product through the most reliable bitumen production company and refinery. In addition to the discussion about helping exports to global markets, this work has been able to provide the best way for customers and buyers to buy and sell the best brands. The price of bitumen 80/100 and 60/70 for export can be obtained from the largest bitumen production center. In this way, our professional consultants in the sales section will inform you about the price of bitumen.

The state of bitumen depends on its temperature. The relationship between the temperature and hardness of bitumen is dependent on the type of crude oil and its refining method, and the degree of permeability of 80/100 bitumen is between 8 and 10 mm, which is a semi-hard bitumen with a degree of permeability and as a heavy bitumen suitable for building and repairing roads. is. Bitumen 80/100 is used to produce asphalt and it is mainly used in the production of hot asphalt for surface coating. The penetration grade of bitumen produced by Raha Bitumen Company is pure petroleum bitumen which is produced by passing hot air through the raw material of vacuum bottom. Bitumen is produced from crude oil residue after cracking and removing its hydrocarbons. Bitumen with a permeability degree of 80-100 has a penetration degree of 8 to 10 mm and its softening point is between 42 and 49. Bitumen with a penetration degree of 80-100 has thermoplastic properties, which is similar to synthetic resin, becomes softer when heated and hardens when cooled. This grade of 100-80 bitumen has a very strong viscosity.

CHARACTERISTICS OF BITUMEN 80/100

The main part of penetrating bitumen is 80/100 bitumen, which is used in road construction. During the last two decades of the 20th century, there was a greater tendency to use hard bitumen in most road construction projects because it produced asphalt with higher properties compared to soft bitumen. Therefore, bitumen with a high degree of penetration is called soft bitumen and is used in cold areas, and vice versa, bitumen with a low degree of penetration is called hard bitumen and is used in hot weather.

Over the years, the relationship between the laboratory properties of road bitumens and their performance on the road has been investigated. As the traffic load increases, it becomes very important to predict the long-term behavior of asphalt and its efficiency. Road performance depends on many factors including design, nature of application and quality of each asphalt component. In terms of volume, bitumen is in the minority in asphalt, but this substance plays an essential role as an adhesive and provides the viscoelastic properties of bituminous mixtures. If the four characteristics of rheology, adhesion, cohesion and durability of bitumen are controlled, bitumen will perform well on the road. The rheological properties of bitumen are determined according to the penetration degree and penetration index.

By studying the relationship between road performance and the physical properties of commercial bitumen and the prototype, Raha Group has created a series of tests to determine the quality of bitumen.

HOW TO DETERMINE THE DEGREE OF BITUMEN PENETRATION

Heat the bitumen to about 60 degrees or above the softening point, then pour it into a special container. This container has a diameter of 5.5 cm and a height of 3.5 cm. Expose the container containing the bitumen to the laboratory air to cool the bitumen. Then we put the container of bitumen in a hot water bath with a temperature of 25 degrees, so that after an hour and a half, the bitumen balances with the water in the bath. You take the container out of the hot water bath and place it under the device for determining the degree of penetration. Now set the degree of the device to zero and by hitting the stopwatch, the needle of 100 grams will be released and within 5 seconds the penetration of the needle will be read. This test is performed 5 to 10 times for each sample (each container) and the obtained values ​​are recorded. This number of tests reduces the test error. The average of the obtained numbers will be the degree of bitumen penetration.

BITUMEN PENETRATION 60/70

BITUMEN 60/70Bitumen Penetration 60/70

The state of bitumen 70/60 depends on its temperature. The relationship between the temperature and hardness of bitumen depends on the type of crude oil and its refining method, and the degree of permeability of 60/70 bitumen is between 6 and 7 mm, which is a semi-hard bitumen with a degree of permeability and as a heavy bitumen suitable for building and repairing roads. is. Bitumen 60/70 is used for asphalt production and it is mainly used for surface coating in hot asphalt production. The most used type of bitumen is 60/70 bitumen and it is a raw material for other bitumen products. The penetration grade of bitumen produced by Raha Bitumen Company is pure petroleum bitumen which is produced by passing hot air through the raw material of vacuum bottom. Bitumen is produced from crude oil residue after cracking and removing its hydrocarbons. Bitumen with a permeability of 70/60 has a penetration degree of 6 to 7 mm and its softening point is between 49 and 56.

WHAT IS BITUMEN A70 CHINESE GRADE?

Bitumen A70, in the context of Chinese grades, refers to a specific type of bitumen with certain properties and characteristics. However, without detailed information about the specific standards and specifications set by Chinese authorities or organizations, it’s challenging to provide an exact definition or description of Bitumen A70.

In China, bitumen grades are often classified based on parameters such as penetration, softening point, and viscosity. The designation “A70” likely indicates a specific grade of bitumen with characteristics tailored for certain applications or performance requirements. It’s possible that “A70” corresponds to a penetration-graded bitumen with specific penetration and softening point values.

To accurately understand the properties and applications of Bitumen A70, it’s essential to refer to the relevant Chinese standards, specifications, or industry guidelines that define this grade of bitumen. These standards would provide detailed information about the physical properties, performance characteristics, and recommended uses of Bitumen A70 in various construction and paving applications.

WHAT IS BITUMEN A90 CHINESE GRADE?

In the context of Chinese bitumen standards, “Bitumen 90” likely refers to a specific grade of bitumen based on its penetration value. Bitumen grades in China are often classified according to their penetration values, which indicate the depth in tenths of a millimeter to which a standard needle penetrates the bitumen sample under specific conditions.

Therefore, “Bitumen 90” could denote a penetration grade bitumen with a penetration value falling within the range of 80 to 100 tenths of a millimeter. This classification is commonly denoted as “Penetration Grade 80/100” in international standards.

To accurately understand the properties and applications of Bitumen 90 within the Chinese market, it’s important to refer to the relevant Chinese standards or specifications. These standards will provide detailed information on the specific requirements and grading systems used for bitumen in China.

CHINA BITUMEN A70 AND ASTM BITUMEN 60/70 GRADE COMPARISON

When comparing China Bitumen A70 and ASTM 60/70 grades, we are essentially looking at two classification systems for bitumen with similar penetration ranges. However, there might be slight differences in specifications and testing methods due to the different standards applied in China and ASTM (American Society for Testing and Materials) standards.

DUCTILITY AND PENETRATION COMPARISON

CHINA GRADE BITUMEN A70 VS. ASTM BITUMEN 60/70

PENETRATION VALUE

CHINA GRADE BITUMEN A70: 
  • Range: 60-80 dmm (decimillimeters)
  • Characteristics: Slightly broader range indicating variability in hardness, suitable for regions with higher ambient temperatures.
ASTM BITUMEN 60/70:
  • Range: 60-70 dmm (decimillimeters)
  • Characteristics: Narrower, more specific range providing more consistent hardness, suitable for a variety of climates.

SOFTENING POINT

BOTH GRADES:
  • Range: Typically around 49-56°C
  • Performance: Similar temperature susceptibility indicating resistance to deformation under moderate heat conditions.

DUCTILITY

CHINA GRADE BITUMEN A70:
  • Standards: Ductility requirements are defined by Chinese national standards, which can vary but generally aim to ensure adequate flexibility. China Grade Bitumen A70 consider the ductility in 10°C and 15 °C .
ASTM BITUMEN 60/70:
  • Standard: ASTM specifies a minimum ductility of 100 cm at 25°C.
  • Performance: Ensures good elongation properties before breaking, which is critical for flexibility and preventing cracks in pavement.

TESTING STANDARDS

CHINA GRADE BITUMEN A70:
  • Testing: Adheres to Chinese national standards, which may include different methods and criteria compared to ASTM standards.
ASTM BITUMEN 60/70:
  • Testing: Complies with ASTM D946 (Standard Specification for Penetration-Graded Asphalt Cement for Use in Pavement Construction), ensuring uniform quality and performance.

SUMMARY

  • Penetration: Both grades offer similar penetration values, with A70 having a slightly broader range.
  • Softening Point: Comparable in both grades, indicating similar resistance to heat.
  • Ductility: ASTM 60/70 has a specified minimum ductility requirement, ensuring flexibility, whereas A70 adheres to varying Chinese standards.
  • Testing: Each grade follows its respective regional standards, ensuring suitability for local climatic and regulatory conditions.

This comparison highlights the slight differences and similarities between China Grade Bitumen A70 and ASTM Bitumen 60/70, particularly in terms of penetration value and ductility, underlining their appropriate applications based on regional standards and climatic conditions. So then difference in China grade Bitumen A70 and ASTM grade Bitumen 60/70 is in ductility . “In ASTM Grade Bitumen 60/70 the penetration range is considered between 60-70 and in China Grade Bitumen A70 the penetration range is 60-80 . In ASTM Grade Bitumen 60/70 the ductility is considered in 25 °C and give the result but in China Grade Bitumen A70 consider the ductility in 10°C and 15 °C and give the result .”

HERE’S A DETAILED COMPARISON:

KEY CHARACTERISTICS AND APPLICATIONS OF BITUMEN A70 (CHINA)

  • Penetration Value: 60-80 dmm (decimillimeters)
  • Softening Point: Typically around 49-56°C
  • Ductility: Should meet the local standards which might have specific requirements.
  • Uses: Suitable for road construction, particularly in regions with higher ambient temperatures due to its higher softening point and hardness.

 KEY CHARACTERISTICS AND APPLICATIONS OF BITUMEN 60/70 (ASTM)

  • Penetration Value: 60-70 dmm
  • Softening Point: Typically around 49-56°C
  • Ductility: Minimum of 100 cm at 25°C (specific to ASTM standards).
  • Uses: Commonly used in road construction and paving, suitable for various climatic conditions with an emphasis on moderate to warm temperatures.

COMPARISON POINTS

PENETRATION VALUE:
  • A70: 60-80 dmm (slightly broader range)
  • 60/70: 60-70 dmm (narrower, more specific range)
SOFTENING POINT:
  • Both typically have a softening point range of around 49-56°C, indicating similar performance in terms of temperature susceptibility.
DUCTILITY:
  • A70: Ductility requirements as per Chinese standards, which can vary.
  • 60/70: ASTM specifies a minimum ductility of 100 cm at 25°C, ensuring good elongation properties before breaking.
TESTING STANDARDS:
  • A70: Tested according to Chinese national standards, which may include different methods and criteria compared to ASTM.
  • 60/70: Tested according to ASTM D946 (Standard Specification for Penetration-Graded Asphalt Cement for Use in Pavement Construction).
USAGE CONTEXT:
  • A70: Used widely in China, tailored to local climatic and regulatory requirements.
  • 60/70: Used internationally, particularly in the US and other regions adhering to ASTM standards, suitable for a range of climates but especially moderate to warm temperatures.

CONCLUSION OF COMPARISON

While Bitumen A70 and Bitumen 60/70 are similar and often used interchangeably in practical applications, the exact specification and performance can slightly differ due to the regional standards and testing methods. Both are suitable for road construction but always check the specific test results and standards compliance to ensure the material meets the required performance criteria for your project.

CHINA BITUMEN A90 AND ASTM BITUMEN 80/100 GRADE COMPARISON

When comparing China Bitumen A90 with ASTM 80/100 grade bitumen, we are looking at two penetration grades of bitumen from different standardization systems. While they are used for similar applications, there can be differences in specifications and testing procedures.

HERE’S A DETAILED COMPARISON:

KEY CHARACTERISTICS AND APPLICATIONS OF BITUMEN A90 (CHINA)

  • Penetration Value: 80-100 dmm (decimillimeters)
  • Softening Point: Typically around 45-52°C
  • Ductility: Should meet local Chinese standards, which may have specific requirements.
  • Uses: Suitable for road construction and paving, particularly in regions with moderate climates due to its relatively higher penetration value, which provides flexibility.

KEY CHARACTERISTICS AND APPLICATIONS OF BITUMEN 80/100 (ASTM)

  • Penetration Value: 80-100 dmm
  • Softening Point: Typically around 45-52°C
  • Ductility: Minimum of 100 cm at 25°C as per ASTM standards.
  • Uses: Commonly used in road construction and paving, suitable for various climates with an emphasis on flexibility and resistance to cracking in cooler temperatures.

COMPARISON POINTS

1-Penetration Value:

  • A90: 80-100 dmm
  • 80/100: 80-100 dmm
  • Note: Both grades have the same penetration range, indicating similar hardness and consistency.

2-Softening Point:

  • A90: Typically 45-52°C
  • 80/100: Typically 45-52°C
  • Note: Both grades have similar softening points, suitable for moderate temperature conditions.

3-Ductility:

  • A90: Ductility requirements as per Chinese standards.
  • 80/100: ASTM specifies a minimum ductility of 100 cm at 25°C.
  • Note: ASTM standards explicitly define the minimum ductility, ensuring good elongation properties, which may or may not be specified in the same way in Chinese standards.

4-Testing Standards:

  • A90: Tested according to Chinese national standards, which may differ in methods and criteria compared to ASTM.
  • 80/100: Tested according to ASTM D946 (Standard Specification for Penetration-Graded Asphalt Cement for Use in Pavement Construction).

5-Usage Context:

  • A90: Widely used in China, tailored to local climatic conditions and regulatory requirements, offering good flexibility for moderate climates.
  • 80/100: Used internationally, particularly in the US and other regions adhering to ASTM standards, offering flexibility and resistance to cracking in cooler temperatures.

CONCLUSION OF COMPARISON

China Bitumen A90 and ASTM 80/100 grade bitumen are essentially equivalent in terms of penetration value and softening point, making them suitable for similar applications in road construction and paving. The primary differences lie in the testing standards and specific criteria set by the respective standardization bodies. Both grades provide good flexibility and are suitable for moderate climates, with ASTM standards providing more explicit ductility requirements. For specific project requirements, it is always advisable to refer to detailed specifications and ensure compliance with the relevant standards.

TECHNICAL DATA SHEET OF BITUMEN PENETRATION 60/70

BITUMEN 60/70TEST METHODUNITSPECIFICATION
Specific gravity @ 25/25 °cASTM D70Kg/cm³1.01-1.06
Penetration @ 25°cASTM D5mm/1060-70
Softening point °cASTM D36°C49-56
Ductility @ 25°cASTM D113cm100 min
Loss on heating(wt) %ASTM D6wt %0.2 max
Drop in Penetration after heating %ASTM D5-D6%20 max
Flashpoint °cASTM D92°C232 min
Solubility is CS2(wt) %ASTM D4wt %99 max
Spot testA.a.s.h.o.t102-Negative

TECHNICAL DATA SHEET OF BITUMEN A70 (CHINA GRADE)

STANDARD: JTGF40-2004

TestData UnitQuality IndicatorsMeasured ResultsTest Mehods
Needle penetration1/10 mm60-8073T 0604-2011
Penetration Index/-1.5-1.0-1.2T 0604-2011
Softening Point ≥ 4647.5T 0606-2011
Dynamic viscosity at 60 ℃Pa.S≥180225T 0620-2000
Ductility (10 ℃)Cm≤ 2073T 0605-2011
Ductility (15 ℃)Cm≥100>150T 0605-2011
Wax Content%(mass fraction)≤ 2.21.8T 0615-2011
Open flash point ≥ 260>300T 0611-2011
Solubility%(mass fraction)≥ 99.599.96T 0607-2011
Density (15 ℃)g/cm3Presentat1.038T 0603-2011
Density (25 ℃)g/cm3Presentat1.031T 0603-2011
Quality Change%(mass fraction)-0.8 - 0.8-0.166T 0609-2011
T 0610-2011
Residual Penetration Ratio (25 ℃)≥ 6163.1T 0604-2011
Residual elongation (10 ℃)≥ 67T 0605-2011

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