BITUMEN EMULSION

Main Features of Bitumen Emulsion

• Excellent adhesion to aggregates and road surfaces
• Ready-to-use liquid form
• Easy spraying and application
• Lower heating requirements compared to hot bitumen
• Energy-saving and cost-effective
• Environmentally friendlier application process
• Fast setting and curing performance
• Suitable for cold and wet weather conditions
• Good waterproofing properties
• Reduced fire and handling risks
• Strong durability for road maintenance projects
• Compatible with surface dressing, tack coat, and prime coat applications
• Easy transportation and storage in drums, IBCs, or bulk tankers

Main Applications of Emulsion Bitumen are as below:

Road Construction

1. Asphalt road paving
2. Highway construction
3. Rural and urban road projects

Road Maintenance

1. Crack sealing
2. Pothole repair
3. Surface rejuvenation
4. Preventive maintenance

Tack Coat

Used between asphalt layers to improve bonding and adhesion.

Prime Coat

Applied on granular base surfaces before asphalt paving.

Surface Dressing

Provides waterproofing and skid resistance for roads.

Slurry Seal

Used for extending pavement life and improving road appearance.

Cold Mix Asphalt

Suitable for road repairs and maintenance in cold conditions.

Waterproofing

1. Roof waterproofing
2. Foundation protection
3. Bridge deck waterproofing
4. Industrial waterproofing systems

Industrial Uses

1. Dust control
2. Soil stabilization
3. Airport runway maintenance
4. Parking area paving

A standard emulsion grades of bitumen is produced by mixing bitumen, water, emulsifier, acid, and additives through a colloid mill.

Typical Formulation Composition

Material Percentage (%)
Bitumen 60/70 or 80/100 55 – 70%
Water 30 – 45%
Emulsifier 0.2 – 2%
Acid (HCl or H₃PO₄) 0.1 – 0.5%
Stabilizers / Additives 0 – 1%

Main Raw Materials

Bitumen

Usually penetration grade:

• Bitumen 60/70
• Bitumen 80/100

Water

Clean soft water is preferred for stable emulsion production.

Emulsifiers

Used to disperse bitumen particles in water.

Common emulsifiers:

• Cationic emulsifiers
• Anionic emulsifiers
• Nonionic emulsifiers

Acid

Used mainly in cationic emulsions to adjust pH.

Common acids:

• Hydrochloric acid (HCl)
• Phosphoric acid (H₃PO₄)

Production Process

1. Heat bitumen to around 120–140°C
2. Prepare water phase with emulsifier and acid
3. Feed both phases into colloid mill
4. High shear mixing forms fine bitumen particles
5. Cool and store finished emulsion

Types of Bitumen Emulsion

Cationic Emulsion

• Most common
• Positive charge
• Excellent adhesion with aggregates

Anionic Emulsion

• Negative charge
• Used in specific aggregate conditions

Setting Grades

• Rapid Setting (RS)
• Medium Setting (MS)
• Slow Setting (SS)

Packing of our all emulsion grades bitumen would be 200 kg new HDPE drums with pallets and and IBC tanks.

<strong>Anionic Bitumen emulsion Grades:

1. SS-1
2. SS-1h
3. QS-1h
4. MS-1
5. HFMS-1
6. HFMS-2
7. RS-1
8. RS-2
9. HFRS-2

<strong>Cationic Bitumen Emulsion Grades:

1. CQS-1h
2. CMS-2h
3. CMS-2
4. CSS-1h
5. CSS1
6. CRS2
7. CRS1
8. K3
9. K2
10. K1-70
11. K1-40
12. K1-60