Product
What is bitumen?

Bitumen is a mixture of dense, sticky, viscous organic liquids, which is mainly composed of polycyclic aromatic hydrocarbons, obtained naturally from crude oil distillation.
Naturally occurring or crude bitumen is a sticky, tar-like form of petroleum which is so thick and heavy that it must be heated or diluted before it can flow.
At room temperature, it is much like cold ooze. Refined Bitumen is the residual (bottom) fraction obtained by fractional distillation of crude oil. It is the heaviest fraction and the one with the highest boiling point of 525 °C (977 °F).

PENETRATION GRADE  |  CUT BACK – MC GRADE   |  EMULSION   |  OXIDIZED   |  VISCOSITY GRADE

bitumen

Properties of Bitumen

1.    Adhesion: Bitumen is capable of adhering to a solid surface in a fluid state depending on the type of the surface. The presence of water on the surface prevents adhesion.

2.    Resistance to Water: Bitumen is known as a water proof substance. Under some conditions water may be absorbed by adding slight amount of inorganic salts in the bitumen or filler therein.

3.    Hardness: To measure the hardness of bitumen, the penetration test is carried out, which measures the depth of penetration a weighted needle in tenths of mm. of bitumen after a given time, at a certain temperature (generally a weight of 100 gm is applied for 5 sec at a temperature of 77 °F). The penetration is a measure of hardness. Typical results are 10 for hard coating asphalt, 15 to 40 for roofing asphalt and up to 100 or more for water proofing bitumen.

4.   Viscosity and Flow: The viscous or flow properties of bitumen are of importance both at high temperature during processing and application and at low temperature to which bitumen is subjected during service. The flow properties of bitumen vary considerably by temperature and stress conditions. Deterioration, or loss of the desirable properties of bitumen, takes the form of hardening which, consequently, decrease the adhesive and flow percentage and an increase in the softening point temperature and coefficient of thermal expansion.

5.   Softening point: Softening point is the temperature at which a steel ball be thrown at a known distance through the bitumen when the test subject is heated at a known rate. Usually the test consist of a 3.8-cm-diameter steel ball, weighted 3.5 gm, which is allowed to sink through a 5.8 cm in diameter, 1.4 cm in thick disk of bitumen in a brass ring. The whole subject is heated at a rate of 9 °F per min. Typical values would be 240 °F for coating grade asphalts, 140 °F to 220 °F for roofing asphalt and down to 115 °F for bituminous water proofing material.

6.   Ductility: Ductility test is conducted to determine the amount at which bitumen will stretch at temperature below its softening point. A briquette having a cross sectional area of 1 in 2 is placed in a tester at 77 °F. Ductility values ranges from 0 to over 150 depending on the type of bitumen.

Difference between Bitumen and Tar

Bitumen and tar are both viscous dark organic liquids which seep out of the ground. They are also both used as waterproofing and sealing agents in the construction of boats and buildings. They also both have medicinal uses.
Although there are many similarities, there are some differences between bitumen and tar. They include the following.

Composition

Bitumen is primarily composed of aromatic hydrocarbons associated with oil deposits. Tar, on the other hand, can form in association with oil or it can be formed from wood.

Characteristics

Bitumen can occur in solid form or as a dark viscous liquid whereas tar is chemically distinct and occurs primarily as a viscous liquid.

Production

Bitumen occurs naturally and can be prospected from the ground whereas tar is usually produced through distillation.

Characteristics

Bitumen

Tar

Source

Derived only from sources associated with coal and oil

Can be derived from petroleum or coal and wood

Occurrence

Occurs in solid form and as a viscous liquid

Usually occurs only as a viscous liquid

Nature

Can be naturally occurring

Usually needs to be distilled

·         Distillation
Atmospheric and vacuum distillation is known as the most common refining process of bitumen from crude or a crude blend. As observed in the above figure, lighter petrochemical and fuel fractions are detached from the non-boiling component (atmospheric residue) at the bottom of the column through the distillation process. The lighter fractions; comprising, gas oil and fuel oils are foddered to other refinery units. The atmospheric residue is reserved in the specific tankers for bitumen. Toward removing all traces of the lighter fractions and avoiding heat transmission between molecules, the atmospheric residue is led into a vacuum distillation unit, where the pressure reduction lowers boiling temperatures and unwanted thermal cracking.

·         Oxidation (Air Blowing)
When blowing air through bitumen at higher temperatures (280°C on average) during its further production process the result will be a product with some altered physical properties that used for certain commercial applications.
Depending on the degree of oxidation, oxidized bitumen categorized into two diverse types: air rectified and oxidized. Oxidized bitumen has a unique stability at room temperature and a rubbery feature which affects how it responds to stress, or imprint. The process of oxidation increases the stiffness and softening point of the bitumen and significantly modifies vital physical properties. Variation in the time during which the oxidation occurs or the amount of air being blown, varies the extent of the reaction and produces distinctive end products. Oxidized bitumen is used in roofing applications, while air rectified bitumen is used in paving applications and some roofing applications.

·         Blending
The final bitumen product can be produced to technical specification either directly in the refining process or by blending bitumen with different substances with various physical properties. Blending of higher and lower viscosity residues in the required proportions may take place at the refinery, at terminals or at a third party facility, where blend components and finished products can be easily transported and distributed for use.

What Is Cutback Bitumen?

Adding certain amounts of petroleum distillates such as kerosene to the Bitumen will results in “Cutback Bitumen”. This is done to reduce the viscosity of the bitumen temporarily so that it can penetrate pavements more efficiently and/or to allow spraying at temperatures that are too cold for successful sprayed sealing with neat bitumen. The materials used for cutback bitumen will evaporate after application to leave the remaining material similar in hardness to the original bitumen.

BITUMEN MC 30

BITUMEN MC 30

CHARACTERISTIC

VALUE

TEST METHOD

Kinematic Viscosity at 60°C (cSt)

30-60

ASTM D-2170

Flash Point (top open cup)(°C)

38 min

ASTM D-3143

Distillate, %volume of total distillate to at 360°C:
To 225°C
To 260°C
To 316°C

25 max
40-70
75-93

ASTM D-402

Residue from Distillation to 360°C (%Vol by difference)

50 min

 

TEST ON RESIDUE FROM DISTILLATION

Viscosity at 60°C

30-120

ASTM D-2170

Penetration at 25°C (dmm)

120-250

ASTM D-5

Ductility at 25°C (cm)

100 min

ASTM D-113

Solubility in Trichloroethylene (%wt)

99 min

ASTM D-2042

Water Content (%vol)

0.2 max

ASTM D-95

BITUMEN MC 70

BITUMEN MC 70

CHARACTERISTIC

VALUE

TEST METHOD

Kinematic Viscosity@ 60°C  (cSt)

70-140

ASTM D-2170

Flash Point (Top open cup)(°C)

38 min

ASTM D-3143

Distillate, %volume of total distillate to @ 360°C:
to 225°C
to 260°C
to 316°C

20 max
20-60
65-90

ASTM D-402

Residue from Distillation to 360°C  (%Vol by difference)

55 min

ASTM D-402

TEST ON RESIDUE FROM DISTILLATION

Viscosity@ 60°C  (cSt)

30-120

ASTM D-2170

Penetration @ 25°C (dmm)

120-250

ASTM D-5

Ductility @ 25°C (cm)

100 min

ASTM D-113

Solubility in Trichloroethylene (%wt)

99 min

ASTM D-2042

Water Content (%vol)

0.2 max

ASTM D-95

BITUMEN MC 800

BITUMEN MC 800

CHARACTERISTIC

VALUE

TEST METHOD

Kinematic Viscosity@ 60°C (cSt)

800-1600

ASTM D-2170

Flash Point (top open cup)(°C)

66 min

ASTM D-3143

Water Content (%vol)

0.2 max

ASTM D-95

Distillate, %volume of total distillate to @ 360°C:
to 225°C
to 260°C
to 316°C


0-35
45-80

ASTM D-402

Residue from Distillation to 360°C  (%Vol by difference)

75 min

ASTM D-402

Test on Residue from Distillation

Penetration @ 25°C (dmm)

120-250

ASTM D-5

Ductility @ 25°C  (cm)

100 min

ASTM D-113

Solubility in Trichloroethylene (%wt)

99 min

ASTM D-2042

BITUMEN MC 3000

BITUMEN MC 3000

CHARACTERISTIC

VALUE

TEST METHOD

Kinematic Viscosity at 60 °C (cSt)

3000-6000

ASTM D-2170

Flash Point (top open cup)(°C)

66 min

ASTM D-3143

Distillate, %Volume of Total Distillate to at 360°C:
To 225°C
To 260°C
To 316°C


0-15
15-75

ASTM D-402

Residue from Distillation to 360°C  (%Vol by difference)

80 min

ASTM D-402

TEST ON RESIDUE FROM DISTILLATION

Viscosity at 60°C

30-120

ASTM D-2170

Penetration at 25°C  (dmm)

120-250

ASTM D-5

Ductility at 25°C  (cm)

100 min

ASTM D-113

Solubility in Trichloroethylene (%wt)

99 min

ASTM D-2042

Water Content (%vol)

0.2 max

ASTM D-95

Application of Cutback Bitumen

·   

  • Prime and Tack Coating

The process of priming involves applying a low viscosity binder to a prepared but usually unbound aggregate base. It is intended to be absorbed by the top layers of the base and provide a surface more easily ‘wetted’ by a subsequent bituminous covering. The primer will be able to carry traffic for a short time (although this practice is uncommon) and help control dust. Generally, primers are applied at rates between 0.5 and 1.4 L/m2. Priming-suitable cutback bitumen are also used for tack coats, which are applied to an underlying surface to help with the adhesion of subsequent asphalt layer. A typical application rate is between 0.2 and 0.4 L/m2.

  • Prime Sealing

Where temperatures are too cold for an effective priming operation, or where traffic is likely to distress a primed surface before the final seal can be sprayed, a primer seal can be used to provide adequate protection of the pavement for periods of up to 6 to 12 months. Cutback bitumen suitable for primer sealing can also be used in the production of pre-mix asphalt, which is used in patch repairs.

  • Spray Sealing

Cutback bitumen are used more usually in sprayed sealing applications, particularly in colder temperature where they provide improved initial stone retention due to their lower viscosity. Typically, a single application of the appropriate cutback bitumen is sprayed onto the primed pavement onto which aggregate is laid.

What Is Penetration Grade Bitumen?

Penetration Grade Bitumen or Paving Grade Bitumen is a standard bitumen known as a crucial element for road construction and for the production of asphalt with superior qualities, which is very important once it bounds the aggregates and creates a unique cohesion and stability to the bituminous mix. This grade of Bitumen is mainly used in the production of hot mix asphalt for bases and wearing courses. Penetration Grade Bitumen supplied by RDR Energy is petroleum grade bitumen, manufactured from fractional / vacuum distillation of crude oil. The Bitumen supplied by RDR Energy is produced from vacuum residue (short residue) feedstock. Penetration Grade bitumen are specified by the penetration and softening point test. The penetration grade bitumen have a thermoplastic property which causes the material to soften at high temperatures and to harden at lower temperatures. This unique temperature/viscosity relationship is essential when determining the performance parameters such as the adhesion, rheology, durability and application temperatures of bitumen.

The penetration grade bitumen, also known as refinery bitumen, is manufactured at different viscosities. The penetration test is carried out to characterize the bitumen hardness. Thus, it has the name penetration bitumen. The penetration bitumen grades range from 15 to 450 for road bitumen. But the most commonly used range is 25 to 200. This is acquired by monitoring the test carried out i.e. the distillation process. The partial control of bitumen residual fluxing with the oils can help in resulting the required hardness. Penetration grading quantifies the following asphalt concrete characteristics.

·         Penetration depth of a 100 g needle 25° C (77° F)
Flash point temperature
·         Ductility at 25°C (77°F)
·         Solubility in trichloroethylene
·         Thin film oven test(accounts for the effects of short-term aging that occurs during mixing with hot aggregate)
·         Retained penetration
·         Ductility at 25° C (77° F)
Bitumen 20/30

Bitumen 20/30

CHARACTERISTIC

TEST METHOD

VALUE

Penetration @ 25°C, 100g, (dmm); 5sec

EN 1426

20-30

Softening Point(Ring & Ball)

EN 1427

65-53

Kinematic Viscosity @ 135⁰C

EN 12595

530 min

Solubility %

EN 12592

99 min

Flash Point (Cleveland Open) (°C)

EN 22592

240 min

PERFORMANCE AFTER RTFOT METHOD TEST TO EN 12607-1

Change in mass, (%wt)

0.5 max

Retained Penetration 25°C, 100g, 5s (% of original)

≥ 55 min

Increase in Softening Point (°C)

≤ 8 max

Softening Point After Hardening (°C)

57 min

Bitumen 40/50

Bitumen 40/50

CHARACTERISTIC

TEST METHOD

VALUE

Specific Gravity @ 25/25°C

ASTM D-70

1.01/1.05

Penetration @ 25 °C (dmm)

ASTM D-5

40-50

Softening Point(°C)

ASTM D-36

52-60

Ductility @ 25°C (cm)

ASTM D-113

100 min

Loss on Heating (%wt)

ASTM D-6

0.2 max

Drop in Penetration after Heating (%)

ASTM D-6 & D-5

20 max

Flash Point (°C)

ASTM D-92

250 min

Solubility in CS2 (%wt)

ASTM D-4

99.5 min

Spot Test

A.A.S.H.O.T.102*

Negative

Bitumen 60/70

Bitumen 60/70

CHARACTERISTIC

TEST METHOD

VALUE

Specific Gravity @ 25/25°C

ASTM D-70

1.01-1.06

Penetration @ 25°C  (dmm)

ASTM D-5

60-70

Softening Point(°C)

ASTM D-36

49-56

Ductility @ 25°C  (cm)

ASTM D-113

100 min

Loss on Heating (%wt)

ASTM D-6

0.2 max

Drop in Penetration after Heating (%)

ASTM D-6 & D-5

20 max

Flash Point (°C)

ASTM D-92

250 min

Solubility in CS2 (%wt)

ASTM D-4

99.5 min

Spot Test

A.A.S.H.O.T.102*

Negative

Bitumen 80/100

Bitumen 80/100

CHARACTERISTIC

TEST METHOD

VALUE

Specific Gravity @ 25/25°C

ASTM D-70

1.01-1.05

Penetration @ 25°C (dmm)

ASTM D-5

80-100

Softening Point(°C)

ASTM D-36

45-52

Ductility @ 25°C (cm)

ASTM D-113

100 min

Loss on Heating (%wt)

ASTM D-6

0.2 max

Drop in Penetration after Heating (%)

ASTM D-6 & D-5

20 max

Flash Point (°C)

ASTM D-92

250 min

Solubility in CS2 (%wt)

ASTM D-4

99.5 min

Spot Test

A.A.S.H.O.T.102*

Negative

BITUMEN 100-120

BITUMEN 100-120

CHARACTERISTIC

TEST METHOD

VALUE

Specific Gravity @ 25/25°C

ASTM D-70

1.01-1.04

Penetration @ 25°C (dmm)

ASTM D-5

100-120

Softening Point (°C)

ASTM D-36

42-49

Ductility @ 25°C (cm)

ASTM D-113

100 min

Loss on Heating (%wt)

ASTM D-6

0.5 max

Drop in Penetration after Heating (%)

ASTM D-6 & D-5

20 max

Flash Point (°C)

ASTM D-92

250 min

Solubility in CS2 (%wt)

ASTM D-4

99.5 min

Spot Test

A.A.S.H.O.T.102*

negative

Application

The penetration grade bitumen is widely used for Manufacturing of bitumen emulsions, polymer modified binders and cutback bitumen. It is also used as a tack coat during surface dressing and for the manufacture of hot mix asphalt.

What Is Emulsion Bitumen?

Holding a share of 20% global bitumen use, bitumen emulsions are basically an O/W (Oil on Water solution) a dispersion of bitumen particles on water, stabilized with the addiction of surfactants (Surface active agents) or most commonly known as emulsifiers, that will permit the bitumen to de-diluted in water. They are primarily used for tack coats that use in between hot mix asphalt layers and prime coats for thin hot mix surfacing layers or a chip seal pavements.

Bitumen emulsions are divided into three categories:

·         Anionic with negatively charged globules

·         Cationic with positively charged globules

·         Non-ionic with neutral globules.

BITUMEN CSS-1h

BITUMEN CSS-1h

PROPERTY

MIN

MAX

TEST METHOD

Viscosity, Say bolt Furol at 25°C,SFS

20

100

ASTM D244

Storage stability Test, 24-h, %

1

ASTM D6930

Particle Charge Test

Positive

ASTM D244

Sieve Test, %

0.1

ASTM D6933

Cement  Mixing Test,%

2.0

ASTM 6935

DISTILLATION

Residue %

59

ASTM D244

TEST ON RESIDUE FROM DISTILLATION

Penetration, 25°C(77°F), 100g, 5s

40

90

ASTM D5

Ductility, 25°C(77°F), 5 cm/min, cm

40

ASTM D113

Solubility in trichloroethylene, %

97.5

ASTM D2042

BITUMEN K160

BITUMEN K160

PROPERTY

MIN

MAX

TEST METHOD

Viscosity, Say bolt Furol at 50°C,SFS

20

100

ASTM D244

Storage stability test, 24-h, %

1

ASTM D6930

Demulsibility, 35 ml, 8% Dioctyl sodium sulfosuccinate, %

40

ASTM D6936

Particle Charge Test

Positive

ASTM D244

Sieve Test, %

0.1

ASTM D6933

DISTILLATION

Solvents, By Volume Of Emulsion %

3

ASTM D6997

Residue %

60

ASTM D244

TEST ON RESIDUE FROM DISTILLATION

Penetration, 25°C(77°F), 100g, 5s

100

250

ASTM D5

Ductility, 25°C(77°F), 5 cm/min, cm

40

ASTM D113

Solubility in trichloroethylene, %

97.5

ASTM D2042

BITUMEN K170

BITUMEN K170

PROPERTY

MIN

MAX

TEST METHOD

Viscosity, Say bolt Furol at 50°C,SFS

20

ASTM D7496

Storage stability test, 24-h, %

1

ASTM D6930

Particle charge test

positive

ASTM D244

Sieve test, %

0.1

ASTM D6933

DISTILLATION:

Oil distillate, by volume of emulsion, %

4

ASTM D6997

Residue, %

67

ASTM D6997

TEST ON RESIDUE FROM DISTILLATION:

Penetration, 25°C (77°F), 100 g, 5 s

60

250

ASTM D5

Ductility, 25°C (77°F), 5 cm/min, cm

20

ASTM D113

Solubility in trichloroethylene, %

97.5

ASTMD2042

Application

1.        Emulsions are used in bituminous road construction work. They are especially helpful for maintenance and patch repair works.

2.       Emulsion can be used in wet weather even when it is raining.

3.       Also emulsions have been used in soil stabilization, particularly for stabilization of sands in desert areas.

4.       A rapid setting type emulsion is suitable for surface dressing and penetration macadam type of construction.

5.       Medium setting type is used for premixing with coarse aggregates.

6.       In case of fine aggregates, the surface area of aggregate is more and as a result long duration of time is required to mix the emulsion.

7.       Therefore slow setting emulsion is preferred which gives sufficient time for uniform blending of the mix.

ADVANTAGES & LIMITATIONS OF BITUMEN EMULSION

ADVANTAGES

·         The main properties of bitumen are preserved in emulsion mixes since emulsions do not need hot mixing. Generally cold mixing or just slightly warming the ingredients of the emulsion mix are done for construction of pavements.

·         Emulsion can be used in humid weather even when it is raining.

·         Emulsions possess anti-stripping properties.

·         Emulsions with lower viscosity or thinner consistency improve spreadability and allows better coating of the bitumen on the surface of aggregate.

·         There is no depletion during laying and storage.

·         Since emulsions are water based, there is less effect on the environment.

·         It is the least energy intensive of all construction material: there is no need to heat.

LIMITATIONS

·         Not a single type of emulsion is suitable for every work. It depends upon whether the aggregate is acidic or basic in nature.

·         The setting time may vary depending on the air temperature, wind velocity and type of emulsion.

·         There is a wide range of curing time; a suitable emulsion mix needs to be designed for a particular need, i.e. we need to determine for each case, the optimum quantity of emulsion based on zone, type of emulsion, mix grade and desired mechanical properties

·         It has limited storage time (ranging from few days to six months)

What Is Emulsion Bitumen?

Holding a share of 20% global bitumen use, bitumen emulsions are basically an O/W (Oil on Water solution) a dispersion of bitumen particles on water, stabilized with the addiction of surfactants (Surface active agents) or most commonly known as emulsifiers, that will permit the bitumen to de-diluted in water. They are primarily used for tack coats that use in between hot mix asphalt layers and prime coats for thin hot mix surfacing layers or a chip seal pavements.

Bitumen emulsions are divided into three categories:

·         Anionic with negatively charged globules

·         Cationic with positively charged globules

·         Non-ionic with neutral globules.

BITUMEN CSS-1h

BITUMEN CSS-1h

PROPERTY

MIN

MAX

TEST METHOD

Viscosity, Say bolt Furol at 25°C,SFS

20

100

ASTM D244

Storage stability Test, 24-h, %

1

ASTM D6930

Particle Charge Test

Positive

ASTM D244

Sieve Test, %

0.1

ASTM D6933

Cement  Mixing Test,%

2.0

ASTM 6935

DISTILLATION

Residue %

59

ASTM D244

TEST ON RESIDUE FROM DISTILLATION

Penetration, 25°C(77°F), 100g, 5s

40

90

ASTM D5

Ductility, 25°C(77°F), 5 cm/min, cm

40

ASTM D113

Solubility in trichloroethylene, %

97.5

ASTM D2042

BITUMEN K160

BITUMEN K160

PROPERTY

MIN

MAX

TEST METHOD

Viscosity, Say bolt Furol at 50°C,SFS

20

100

ASTM D244

Storage stability test, 24-h, %

1

ASTM D6930

Demulsibility, 35 ml, 8% Dioctyl sodium sulfosuccinate, %

40

ASTM D6936

Particle Charge Test

Positive

ASTM D244

Sieve Test, %

0.1

ASTM D6933

DISTILLATION

Solvents, By Volume Of Emulsion %

3

ASTM D6997

Residue %

60

ASTM D244

TEST ON RESIDUE FROM DISTILLATION

Penetration, 25°C(77°F), 100g, 5s

100

250

ASTM D5

Ductility, 25°C(77°F), 5 cm/min, cm

40

ASTM D113

Solubility in trichloroethylene, %

97.5

ASTM D2042

BITUMEN K170

BITUMEN K170

PROPERTY

MIN

MAX

TEST METHOD

Viscosity, Say bolt Furol at 50°C,SFS

20

ASTM D7496

Storage stability test, 24-h, %

1

ASTM D6930

Particle charge test

positive

ASTM D244

Sieve test, %

0.1

ASTM D6933

DISTILLATION:

Oil distillate, by volume of emulsion, %

4

ASTM D6997

Residue, %

67

ASTM D6997

TEST ON RESIDUE FROM DISTILLATION:

Penetration, 25°C (77°F), 100 g, 5 s

60

250

ASTM D5

Ductility, 25°C (77°F), 5 cm/min, cm

20

ASTM D113

Solubility in trichloroethylene, %

97.5

ASTMD2042

Application

1.        Emulsions are used in bituminous road construction work. They are especially helpful for maintenance and patch repair works.

2.       Emulsion can be used in wet weather even when it is raining.

3.       Also emulsions have been used in soil stabilization, particularly for stabilization of sands in desert areas.

4.       A rapid setting type emulsion is suitable for surface dressing and penetration macadam type of construction.

5.       Medium setting type is used for premixing with coarse aggregates.

6.       In case of fine aggregates, the surface area of aggregate is more and as a result long duration of time is required to mix the emulsion.

7.       Therefore slow setting emulsion is preferred which gives sufficient time for uniform blending of the mix.

ADVANTAGES & LIMITATIONS OF BITUMEN EMULSION

ADVANTAGES

·         The main properties of bitumen are preserved in emulsion mixes since emulsions do not need hot mixing. Generally cold mixing or just slightly warming the ingredients of the emulsion mix are done for construction of pavements.

·         Emulsion can be used in humid weather even when it is raining.

·         Emulsions possess anti-stripping properties.

·         Emulsions with lower viscosity or thinner consistency improve spreadability and allows better coating of the bitumen on the surface of aggregate.

·         There is no depletion during laying and storage.

·         Since emulsions are water based, there is less effect on the environment.

·         It is the least energy intensive of all construction material: there is no need to heat.

LIMITATIONS

·         Not a single type of emulsion is suitable for every work. It depends upon whether the aggregate is acidic or basic in nature.

·         The setting time may vary depending on the air temperature, wind velocity and type of emulsion.

·         There is a wide range of curing time; a suitable emulsion mix needs to be designed for a particular need, i.e. we need to determine for each case, the optimum quantity of emulsion based on zone, type of emulsion, mix grade and desired mechanical properties

·         It has limited storage time (ranging from few days to six months)

What Is Oxidized Bitumen?

Oxidized Bitumen or Blown bitumen grades are produced by passing air through the penetration grades. This process results in more rubbery property of the bitumen than its original formula and they are simply harder bitumen. When tempered by controlled temperature, hard bitumen is widely used as an anti-slip layer compound in the piling industry, production of roofing felts, roofing and waterproofing industries, sound dampening felts and carriage sealant in the automotive industry, electric cable joint protection, joint filling compound, sealant compound and many others. It is also used in sealing saw cuts and joints where expected movements are minimum. It is also used in the manufacturing of bituminous marine mastic for the oil & gas pipeline joints.

BITUMEN 85-25

BITUMEN 85-25

CHARACTERISTIC

VALUE

TEST METHOD

Specific Gravity @ 25/25°C

1.05 approx.

ASTM D-70

Penetration @ 25°C  (dmm)

20-30

ASTM D-5

Softening Point (°C)

80-90

ASTM D-36

Ductility @ 25°C  (cm)

3 min

ASTM D-113

Loss on Heating (%wt)

0.2 max

ASTM D-6

Flash Point (°C)

225 min

ASTM D-92

Solubility in CS2 (%wt)

99 min

ASTM D-4

BITUMEN 90-15

BITUMEN 90-15

CHARACTERISTIC

VALUE

TEST METHOD

Specific Gravity @ 25/25℃

1.05 approx

ASTM D-70

Penetration @ 25℃ (dmm)

10-20

ASTM D-5

Softening Point (°C )

85-95

ASTM D-36

Ductility @ 25°C (cm)

1.5 min

ASTM D-113

Loss on Heating (%wt)

0.2 max

ASTM D-6

Flash Point (°C )

250 min

ASTM D-92

Solubility in CS2 (%wt)

99 min

ASTM D-4

BITUMEN 100-115

BITUMEN 100-115

CHARACTERISTIC

VALUE

TEST METHOD

Specific Gravity @ 25/25°C

1.05 approx.

ASTM D-70

Penetration @ 25°C  (dmm)

10-20

ASTM D-5

Softening Point (°C)

85-95

ASTM D-36

Ductility @ 25°C  (cm)

1.5 min

ASTM D-113

Loss on Heating (%wt)

0.2 max

ASTM D-6

Flash Point (°C)

225 min

ASTM D-92

Solubility in CS2 (%wt)

99 min

ASTM D-4

BITUMEN GRADE 110/10

BITUMEN GRADE 110/10

PROPERTY / UNIT

VALUE

TEST METHOD

Relative density / S.G .at 25°C ,g / ml

1.01-1.06

ASTM D-70

Penetration  at @25°C ,0.1 mm

105-115

ASTM D 5

Softening point °C (Ring and Ball)

10-20

ASTM D-36

Flash point °C (Cleveland Open Cup)

200

ASTM D-92

Loss on Heating %wt by mass

0.2

ASTM D-6

Ductility at 25°C cm ,min

2

ASTM D113

Solubility in Toluene  %wt min

99

EN12592:2000

BITUMEN GRADE 115/15

Application

Oxidized Bitumen has a wide variety of industrial applications.

·         As a bonding bitumen for roofing sheet membranes.
·         As a hot-applied waterproofing layer.
·         Carpet tile manufacture.
·         As a raw material for liquid bitumen coatings.
·         For the production of bituminous paint, mastic.
·         For rust proof pipe coatings.
·         Used as an anti-slip layer compound in the piling industry.
·         Used for production of roofing and sound dampening felts, Used as under carriage sealant in the automobile industry, electric cable joint protection, joint filling compound, sealant compound and much more in our day to day life.
 

What is Viscosity Grade bitumen?

Viscosity grades Bitumen are categorized according to Viscosity (degree of Fluidity) grading. The higher the grade, the stiffer the Bitumen. In Viscosity Grade, Viscosity tests are conducted at 60 deg. C and 135 deg. C, which represents the temperature of road surface during summer and mixing temperature respectively. The penetration at 25 deg. C, which is annual average pavement temperature, has been also retained in Specifications.

The new method of grading the product has now rested on the viscosity of the bitumen (at 60 C and 135 deg. C). The new grades have thus evolved with nomenclature:

Grades

Minimum of Absolute
viscosity, Poise@ 600C

Approximate
penetration grade

VG10

800

80-100

VG20

1600

—–

VG30

2400

60-70

VG40

3200

30-40/40-50

IS 73:2006 has been released by Bureau of Indian Standards. Three grades of bitumen confirming to IS 73: 1992 are manufactured in India. In this third revision grading of Bitumen is changed from penetration grade to viscosity grade. To improve the quality of Bitumen, BIS revised IS-73-1992 Specifications based on viscosity grade (viscosity @ 60 deg. C) in July 2006.

As per the Specifications, there are four grades VG-10, VG-20, VG-30 & VG-40.

BITUMEN VG 10

BITUMEN VG 10

CHARACTERISTIC

TEST METHOD

VALUE

Absolute Viscosity at 60°C , Poises

IS 1206

Min 800

Kinematic Viscosity at 135°C , cSt

IS 1206

Min 250

Flash point (Cleveland open Cup,) °C

IS 1209

Min 220

Solubility in Trichloroethylene, %

IS 1206

Min 99

Softening point. (R&B), °C

IS 1205

Min 40

Penetration @ 25°C, 0.1 mm 100gm, 5 sec.

IS 1203

80-100

TEST ON RESIDUE FROM TFOT/RTFOT

Viscosity ratio @ 60°C

IS 1206

Max 4.0

Ductility @ 25°C  (cm)

IS 1208

Min 75

Specific Gravity @ 27°C

IS 1202

Min 0.99

BITUMEN VG 20

BITUMEN VG 20

CHARACTERISTIC

TEST METHOD

VALUE

Absolute Viscosity at 60°C , Poises

IS 1206

Min 1600

Kinematic Viscosity at 135°C , cSt

IS 1206

Min 300

Flash point (Cleveland open Cup,) °C

IS 1209

Min 220

Solubility in Trichloroethylene, %

IS 1206

Min 0.99

Softening point. (R&B), °C

IS 1205

Min 45

Penetration @ 25°C ,0.1 mm 100gm,5 sec.

IS 1203

60-80

TEST ON RESIDUE FROM TFOT/RTFOT

Viscosity ratio @ 60°C

IS 1206

Max 4.0

Ductility @ 25°C  (cm)

IS 1208

Min 50

Specific Gravity

IS 1202

Min 0.99

TDS Download

BITUMEN VG 30

BITUMEN VG 30

CHARACTERISTIC

TEST METHOD

VALUE

Absolute Viscosity at 60°C, Poises

IS 1206

Min 2400

Kinematic Viscosity at 135°C , cSt

IS 1206

Min 350

Flash point (Cleveland open Cup,) °C

IS 1448

Min 220

Solubility in Trichloroethylene, %

IS 1216

Min 99.0

Softening point. (R&B), °C

IS 1205

Min 47

Penetration @ 25°C ,0.1 mm ;100g,5 sec.

IS 1203

50-70

TEST ON RESIDUE FROM TFOT/RTFOT

Viscosity ratio @ 60°C

IS 1206

Max 4.0

Ductility @ 25°C (cm)<

IS 1208

Min 40

Specific Gravity

IS 1202

Min 0.99

BITUMEN VG 40

BITUMEN VG 40

CHARACTERISTIC

TEST METHOD

VALUE

Absolute Viscosity at 60°C , Poises

IS 1206

Min 3200

Kinematic Viscosity at 135°C , cSt

IS 1206

Min 400

Flash point (Cleveland open Cup,) °C

IS 1209

Min 220

Solubility in Trichloroethylene, %

IS 1206

Min 99

Softening point. (R&B), °C

IS 1205

Min 50

Penetration @ 25°C, 0.1 mm 100gm, 5 sec.

IS 1203

40-60

TEST ON RESIDUE FROM TFOT/RTFOT

Viscosity ratio @ 60°C

IS 1206

Max 4.0

Ductility @ 25°C  (cm)

IS 1208

Min 25

Specific Gravity @ 27°C

IS 1202

Min 0.99

Application

  • VG-10 BITUMEN

VG-10 is mostly used in spraying applications such as surface dressing and Paving in very cold climate instead of 80/100 penetration bitumen grade. It is also used to produce Bitumen Emulsion and Modified Bitumen products.

  • VG-20 BITUMEN

VG-20 is used for paving in cold climate & high altitude regions.

  • VG-30 BITUMEN

VG-30 is especially used to construct extra heavy duty Bitumen pavements that need to tolerate significant traffic loads. It can be used instead of 60/70 penetration bitumen grade.

  • VG-40 BITUMEN

VG-40 is used in highly stressed areas such as intersections, near toll booths and truck parking lots instead of 30/40 penetration grade. Because of higher viscosity, stiffer Bitumen mixes can be produced to amend resistance to shoving and other problems related to higher temperature and heavy traffic loads