Additives to Formulate
High-Performance
Bitumen Emulsion Applications

Sripath offers asphalt rejuvenators and engineered polymers to manufacture innovative rejuvenating emulsions and PMB emulsions.

Sripath offers additives for use in a range of asphalt and bitumen emulsions.

High-Performance Asphalt and Bitumen Emulsions for Paving

PMB and asphalt or bitumen emulsions play a critical role in paving by enabling efficient application, improved coating, and reliable performance. These unique formulations allow for easier aggregate bonding, contributing to longer lasting and more durable pavements. 

Sripath additives are engineered to enhance stability, breaking behavior, workability, and recycled material content across a wide range of surface treatments and maintenance applications. This can help producers and contractors achieve consistent results while improving sustainability, reducing energy use, and extending pavement service life. 

Sripath asphalt additives can be used for formulate a variety of bitumen emulsions for paving.

Deeper Insight

ReLIXER® for Rejuvenating Emulsions

ReLIXER can be used for rejuvenating emulsions.

ReLIXER® rejuvenating emulsions are engineered for pavement preservation applications where restoring binder performance can significantly extend roadway service life.  

Formulated as a water-based emulsion containing typically 2-4% ReLIXER® and conventional emulsifiers, often without the need for added bitumen binder, these emulsions are applied topically at very light spray rates using standard equipment. They are ideally suited for mildly distressed pavements with no major cracking or potholes, helping delay costly resurfacing by rejuvenating the existing asphalt in place. 

How ReLIXER® Rejuvenating Emulsions Work

  • Penetrate the asphalt surface to restore adhesion between binder and aggregate

  • Rejuvenate aged binder, increasing flexibility and improving durability

  • Improve resistance to UV exposure, moisture damage, and temperature cycling

  • Slow the rate of oxidation and long-term pavement aging

  • Increase the amount of effective binder available for functional performance

  • Improve roadway durability and reduce the need for frequent maintenance

Environmental and Sustainability Advantages

ReLIXER® rejuvenating emulsions support environmentally responsible pavement preservation strategies. The additive contains no volatile organic compounds and is developed from a blend of bio-oils sourced from non-food crops. By contributing to a lower carbon footprint and exhibiting a negative global warming potential (GWP), ReLIXER® helps contractors maintain longer-lasting roadway networks while advancing sustainability goals. 

PGXpand® Polymer Modified Emulsions

PGXpand® is a bitumen-friendly polymeric additive designed to enhance the performance of polymer modified bitumen (PMB) emulsions for paving and surface treatment applications.  

The polymer readily disperses into bitumen emulsion using low-energy milling and short mixing times, enabling efficient production without complex processing requirements. Highly dosage-efficient, PGXpand®-based PMB emulsions deliver superior high-temperature performance, rapid curing, and improved resistance to rutting and deformation. 

Key performance advantages include: 

  • Requires only low-shear mixing and short production times 

  • Enables tailored emulsion formulations to meet specific performance needs 

  • Provides outstanding high-temperature stability and rutting resistance 

  • Achieves rapid tack-free conditions for faster traffic return 

  • Compatible with both slow-set and rapid-set emulsion systems 

PGXpand can be used for formulate polymer modified bitumen (PMB) emulsions for high-performance paving.

Surface Treatments Using Bitumen Emulsions with ReLIXER®

ReLIXER can be used in a variety of surface treatment emulsion applications including chip seal.

ReLIXER® is a bio-based asphalt rejuvenator used to manufacture bitumen emulsions for surface treatment applications. These emulsions help restore aged pavements and extend roadway service life.

Such emulsions can be used for fog seals, chip seals, scrub seals, cape seals, microsurfacing, and patching applications. ReLIXER® rejuvenates the exposed binder, improves durability, and supports effective pavement preservation strategies. These treatments help agencies maintain existing road networks with minimal disruption at lower costs and without altering ride quality.

Key performance benefits include:

  • Rejuvenates aged binder at the pavement surface to restore flexibility and durability

  • Penetrates and seals the top asphalt layer, slowing oxidation and surface aging

  • Reduces water infiltration to protect underlying pavement layers

  • Extends pavement service life by as much as 5-7 years

  • Applied using conventional equipment with no impact on roadway functional properties

FAQs: Bitumen Emulsions

1. What are bitumen emulsions used for?

Bitumen emulsions are used in paving, surface treatments, and maintenance to allow controlled application of asphalt at lower temperatures with improved handling and efficiency.

2. How do bitumen emulsions differ from hot asphalt mixes?

Unlike hot mixes, emulsions suspend bitumen in water, enabling application without high heat and reducing energy demand during production and placement.

3. What types of projects commonly use bitumen emulsions?

They are widely used for tack coats, chip seals, fog seals, microsurfacing, cold mixes, and pavement preservation treatments.

4. Can bitumen emulsions improve pavement durability?

Yes. Properly formulated emulsions can enhance bonding, improve moisture resistance, and help protect pavement surfaces from premature aging.

5. Are bitumen emulsions compatible with recycled materials?

Many emulsions are designed to work effectively with reclaimed asphalt materials, supporting higher recycling rates and more sustainable paving practices.

6 Do bitumen emulsions require specialized application equipment?

Most bitumen emulsions can be applied using standard spray and paving equipment, making them suitable for a wide range of field conditions.