Bitumen Emulsion CSS1: Applications, Advantages, and Best Practices

bitumen css1

General Description of Cationic Bitumen Emulsion CSS1

Bitumen emulsion CSS1 is a cationic emulsion comprising bitumen, water, and an emulsifying agent. It is known for its positive charge, allowing rapid reactions with aggregates or pavements. This article delves into the specifics of CSS-1 emulsions, their applications, advantages, and considerations for effective use.

Application of Bitumen Emulsion CSS-1

Cationic emulsions like CSS-1 find extensive applications in various construction scenarios. They are commonly used for:

  • Dust control
  • Tack coats
  • Prime coats
  • Fog seals
  • Cold mix asphalt
  • Chip seals
  • Slurry seals
  • Micro surfacing
  • And more

Advantages of Using Bitumen  CSS-1

CSS-1 offers numerous advantages, including:

  • No need for petroleum solvents
  • Low hydrocarbon emissions
  • Good penetration and spreading capacity
  • Cold application without additional heating
  • Ability to coat damp aggregates
  • Environmental friendliness
  • Safety for workers’ health
  • Wide variety of available types
  • Economical and fire-safe

Best Practices for Application

To ensure optimal performance and longevity, follow these best practices when using CSS-1:

Select the appropriate grade and type of emulsion for the intended use.

Consider climatic conditions, aggregate type, and contractor availability.

Conduct laboratory testing for the best emulsion-aggregate combination.

Apply CSS-1 at ambient temperatures with aggregates, even if not completely dry.

Ensure proper traffic control and environmental considerations during application.

Store CSS-1 in thick steel drums or bulk containers to prevent leaks.

Specification of Bitumen CSS1

PropertyProperty 

Min

Max

Test Method

Test on Emulsions

Viscosity, Saybolt 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 D6935

Distillation:

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