Bitumen Emulsions

Bitumen Emulsions are usually dispersions of minute droplets of bitumen in water. Two most common basic emulsions are designed by the letter "C" for cationic and "A" for anionic grades. The characteristics of an emulsion are designated by the terms Rapid, Medium and Slow and main grades are classified as follows:

  Anionic Cationic
Rapid setting ARS CRS
Medium setting AMS CMS
Slow setting ASS CSS

 

CRS-U

PROPERTY

MIN

MAX

TEST METHOD

Viscosity, Saybolt Furol at 25°C, SFS

-

-

ASTM D244

Viscosity, Saybolt Furol at 50°C, SFS

20

100

ASTM D244

Storage stability test, 24-h, %

-

1

ASTM D6930

Demulsibility, 35 mL, 0.8 % dioctyl sodium sulfosuccinate, %

40

-

ASTM D6936

Particle charge test

Positive

-

ASTM D244

Sieve test, %

-

0.1

ASTM D6933

Distillation :

-

-

-

Oil distillate, by volume of emulsion, %

-

3

ASTM D6997

Residue, %

60

-

ASTM D244

Tests on residue from distillation test:

-

-

-

Penetration, 25°C (77°F), 100 g, 5 s

100

250

ASTM D5

Ductility, 25°C (77°F), 5 cm/min, cm

40

-

ASTM D113

Solubility in trichloroethylene, %

97.5

0.2

ASTM D2042

 

CRS-D

PROPERTY

MIN

MAX

TEST METHOD

Viscosity, Saybolt Furol at 25°C, SFS

-

-

ASTM D244

Viscosity, Saybolt Furol at 50°C, SFS

100

400

ASTM D244

Storage stability test, 24-h, %

-

1

ASTM D6930

Demulsibility, 35 mL, 0.8 % dioctyl sodium sulfosuccinate, %

40

-

ASTM D6936

Coating ability and water resistance:

-

-

-

Coating, dry aggregate

-

-

ASTM D244

Coating, after spraying

-

-

ASTM D244

Coating, wet aggregate

-

-

ASTM D244

Coating, after spraying

-

-

ASTM D244

Particle charge test

-

Positive

ASTM D244

Sieve test, %

-

0.1

ASTM D6933

Cement mixing test, %

-

-

ASTM D6935

Oil distillate, by volume of emulsion, %

-

3

ASTM D6997

Distillation:

-

-

-

Residue, %

65

-

ASTM D244

Tests on residue from distillation test:

-

-

-

Penetration, 25°C (77°F), 100 g, 5 s

100

250

ASTM D5

Ductility, 25°C (77°F), 5 cm/min, cm

40

-

ASTM D113

Solubility in trichloroethylene, %

97.5

-

ASTM D2042

 

CMS-D

PROPERTY

MIN

MAX

TEST METHOD

Viscosity, Saybolt Furol at 25°C, SFS

-

-

ASTM D244

Viscosity, Saybolt Furol at 50°C, SFS

50

450

ASTM D244

Storage stability test, 24-h, %

-

1

ASTM D6930

Demulsibility, 35 mL, 0.8 % dioctyl sodium sulfosuccinate, %

-

-

ASTM D6936

Coating ability and water resistance:

-

-

-

Coating, dry aggregate

Good

-

ASTM D244

Coating, after spraying

Fair

-

ASTM D244

Coating, wet aggregate

Fair

-

ASTM D244

Coating, after spraying

Fair

-

ASTM D244

Particle charge test

-

Positive

ASTM D244

Sieve test, %

-

0.1

ASTM D6933

Cement mixing test, %

-

-

ASTM D6935

Oil distillate, by volume of emulsion, %

-

3

ASTM D6997

Distillation:

-

-

-

Oil distillate, by volume of emulsion, %

-

12

ASTM D6997

Residue, %

65

-

ASTM D244

Tests on residue from distillation test:

-

-

-

Penetration, 25°C (77°F), 100 g, 5 s

100

250

ASTM D5

Ductility, 25°C (77°F), 5 cm/min, cm

40

-

ASTM D113

Solubility in trichloroethylene, %

97.5

-

ASTM D2042

 

CSS-U

PROPERTY

MIN

MAX

TEST METHOD

Viscosity, Saybolt Furol at 25°C, SFS

20

100

ASTM D244

Viscosity, Saybolt Furol at 50°C, SFS

-

-

ASTM D244

Storage stability test, 24-h, %

-

1

ASTM D6930

Demulsibility, 35 mL, 0.8 % dioctyl sodium sulfosuccinate, %

-

-

ASTM D6936

Coating ability and water resistance:

-

-

-

Coating, dry aggregate

-

-

ASTM D244

Coating, after spraying

-

-

ASTM D244

Coating, wet aggregate

-

-

ASTM D244

Coating, after spraying

-

-

ASTM D244

Particle charge test

-

Positive

ASTM D244

Sieve test, %

-

0.1

ASTM D6933

Cement mixing test, %

-

0.2

ASTM D6935

Distillation:

-

-

-

Oil distillate, by volume of emulsion, %

-

-

ASTM D6997

Residue, %

57

-

ASTM D244

Tests on residue from distillation test:

-

-

-

Penetration, 25°C (77°F), 100 g, 5 s

100

250

ASTM D5

Ductility, 25°C (77°F), 5 cm/min, cm

40

-

ASTM D113

Solubility in trichloroethylene, %

97.5

-

ASTM D2042

     

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