Bitumen CRS2

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Categories: Bitumen, CATIONIC, Cationic Bitumen Emulsion CRS-2, Emulsion Bitumen

Description

What is Bitumen CRS2

Bitumen CRS2 comprises bitumen, water, and an emulsifying agent. This unique blend allows for effective mixing and application, overcoming the natural repulsion between water and asphalt. The emulsification process involves mechanical separation of hot bitumen into minute globules dispersed in water with an emulsifying agent.

Application of Bitumen CRS2

Bitumen emulsion CRS-2 finds extensive use in penetration macadam, grouting, and surface dressing applications. Its cationic nature enables usage at ambient temperatures, even with partially wet aggregates, making it safer and more versatile compared to traditional alternatives like cutback.

Advantages of Using Bitumen CRS2

Environmentally Friendly: CRS-2 eliminates the need for petroleum solvents, reducing hydrocarbon emissions and environmental impact.

Ease of Use: It requires no pre-heating, can be applied with damp aggregates, and offers cold application options, enhancing user safety and efficiency.

Table of Contents

Versatility: With a wide range of emulsion types available, CRS-2 caters to diverse construction needs, extending its application to different seasons and regions.

Cost-Effective: Economical packaging and energy-saving properties make CRS-2 a cost-efficient choice for construction projects.

Selection and Application Guidelines

Choosing the right type and grade of emulsion depends on various factors:

Construction Conditions: Consider climatic conditions, aggregate type, contractor availability, and traffic control measures.

Project Specifics: Determine the intended use, whether for mixes, surface applications, maintenance, or pavement preservation.

Aggregate Compatibility: Cationic emulsions like CRS-2 are ideal for negatively charged siliceous aggregates, offering better adhesion and moisture tolerance.

Laboratory Testing: Conduct thorough laboratory evaluations to optimize emulsion-aggregate combinations for the best performance.

Packaging of Bitumen Emulsion CRS-2

CRS-2 is packed in sturdy steel drums on pallets to prevent leaks. Bulk options in bitutainers and tankers provide flexibility for large-scale projects.

Specification of Bitumen CRS2

PropertyProperty	Min	Max	Test Method
Test on Emulsions
Viscosity, Saybolt Furol at 25 °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:
Particle charge test	Positive		ASTM D244
Sieve test, %	–	0.1	ASTM D6933
Distillation :
Oil distillate, by volume of emulsion, %	–	3	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

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