NTP Tar Products Pvt. Ltd.
Vadodara, Gujarat
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Bitumen Emulsions

We are engaged in manufacturing, supplying and exporting a comprehensive range of Bitumen Emulsions. These emulsions are manufactured using quality raw material and are used for various applications of road making and construction. We offer these emulsions under the brand name, ‘National’.


Bitumen Emulsion

Offering RS-1 Cationic Bitumen Emulsions, which are formed in compliance with BIS 8887-2004 standards. These emulsions are specially designed for ensuring a uniform and strong Tack Coat for bituminous road construction purpose. Available as ‘national RS -1’ Cationic Bitumen Emulsion these products are suitable as binder for Penetration Macadam and Sand Seal.


Tack Coat Tack Coat Application:


  • A light spray of Bitumen Emulsion, which may be hand or machine sprayed
  • Used to ensure a good bond between an old and a new bituminous surfacing layer
  • Applied very thin and must over the entire surface evenly

 

Advantages:

 

  • Easy and Uniform spray
  • Low temperature cure
  • Highly adhesive properties
  • Enhance structural strength of layers
  • Prevents lateral movements of structural layers
  • Water resistant and enhances easy drainage of water
  • Provides an impervious layer to prevent water ingress from table below the road layers

 

Cationic Bitumen Emulsions

Item Code: RS-2

Avail from us an exhaustive range of RS-2 Cationic Bitumen Emulsions available as ‘NATIONAL RS-2’ Cationic Bitumen Emulsion. This is more viscous liquid with higher binder content (minimum 67 %) and is suitable for Surface dressing, Grouting and Penetration Macadam.

 

Surface Dressing

 

  • It consists of application in one or two coats, each consisting of a layer of bituminous binder sprayed on a previously prepared base
  • This is followed by a cover of stone chips rolled in to form a wearing course
  • RS-2 type cationic bitumen emulsion is ideal for surface dressing on the shoulders and for protection of freshly laid base course
  • Typical rate of application for two coat surface dressing as per (MORT & H) clause 510.2 is 28-32 kg/ 10 sq.m

 

Grouting:

 

  • For economical construction of low volume roads, a combined base and wearing courses can be made by an application of NATIONAL RS-2 cationic bitumen emulsion on the laid and compacted aggregates
  • This application can be carried out even when the stone layer is damp

 

Penetration Macadam:

 

  • Its consists of construction of one or more layers of compacted crushed coarse aggregates with alternate application of bituminous binder
  • Key aggregates to be used as base course on roads, subject to the requirements of the overall pavement design

 

Sand Seal:

 

  • A bituminous sand application to be existing pavement surface to seal the surface and to function as a light-wearing course

 

Advantages:

 

  • Easy spray
  • Low temperature cure
  • Highly adhesive properties
  • Enhance structural strength of layers
  • Prevents lateral movements of structural layers
  • Water resistant and enhances easy drainage of water
  • Provides an impervious layer to prevent water ingress from table below the road layers

Cationic Bitumen Emulsions

Item Code: SS-2

Avail from us SS-2 Cationic Bitumen Emulsions, which are made in confirmation to BIS 8887-2004 standards. Our NATIONAL SS-2 cationic bitumen emulsion is exclusively used for plant or in-situ mixes with graded and fine aggregates.

 

Applications: Prime Coat:

 

  • Application of NATIONAL SS-2 to an absorptive surface, designed to penetrate, bond and stabilize this existing surface and to promote adhesion between it
  • Construction course follows
  • Recommended rate of application is 6 to 9 kg per 10m2

 

Fog Seal / Crack Seal:

 

  • Light application of NATIONAL SS-2 to an existing pavement as a seal to inhibit raveling, or to seal the surface, or both
  • Used to fill and seal small cracks in existing pavements
  • Helps to rejuvenate an old oxidized road surface, thus extending its life
  • Recommended Rate of application is 5 to 10 kg per 10m2

 


Slurry Seal:


 

  • A surface treatment for structurally sound roads where the wearing course has deteriorated
  • Slurry seals are mixtures of fine aggregate, Portland cement filler, bitumen emulsions and additional water
  • When freshly mixed, they have thick consistency & can be sprayed to a thickness of 1.5 - 5 mm
  • Used to seal cracks, arrest fretting and fill voids and minor depressions
  • Recommended rate of application is 10 to 12 kg per 10m2

 

 

Premix Seal Coat:

 

 

  • Premix is a mixture of fine aggregate, Portland cement filler, bitumen emulsions and additional water
  • Used to seal wide cracks, fill voids and minor depressions
  • Recommended rate of application is 10 to 12 kg per 10m2

 


Advantages:

 

  • Easy spray
  • Extended breaking
  • Low temperature curing
  • Highly adhesive properties
  • Prevents raveling and rutting
  • Compatible with Portland cement
  • Binds loose aggregates together strongly
  • Bonds well to cool, damp substrates/surfaces
  • Prevents lateral movement of structural layers
  • Good penetration into miniature pores of sub bases
  • Prevents permeability of atmospheric air to the bottom layer
  • Water resistant and enhances easy drainage of water
  • Penetrate the cracks & crevices and impart strengths to the layers

 

 

Some Important specification are:
Residue on 600 micron IS sieve % by mass 0.05 % Max
Viscosity @ 25 deg C (Saybolt), sec 30-150
Storage Stability after 24 hours, % Max Less than 2
Binder - Residue by evaporation % Min 60.00%
Setting Time > 60 minutes

Cationic Bitumen Emulsions

Item Code: SS-1

We offer SS-1 Cationic Bitumen Emulsions in different packaging to suit the clients’ requirements. These bitumen emulsions are manufactured in confirmation with BIS 8887-2004 standards. It is a liquid form of bitumen with substantial amount of bitumen, suspended in finely divided condition in an aqueous medium. Bitumen is considered to be the dispersed phase and waters the continuous phase. Our NATIONAL SS - 1 brand cationic bitumen emulsion is formulated specially to exceed the functional requirements of respective applications.

 

Applications: Prime Coat:

 


Objective:

 

  • To coat and bond loose mineral particles on the surface of the base course
  • To seal surface pores and make the surface of the base course water-resistant
  • To penetrate the existing base course i.e., WMM surface so as to plug the capillary voids in it
  • To harden and toughen the base course surface
  • To assist adhesion between the base and the super imposed surface course in conjunction with a tack coat

 

 

Applications:

  • Application of NATIONAL SS – 1 Cationic Bitumen Emulsion to an absorptive surface (like Low to Medium high Porosity Wet Mix Macadam or Water Bound Macadam)
  • Designed to penetrate, plug the capillary voids in the surface, bond and stabilize the existing surface
  • To promote adhesion between it and the construction course that follows
  • The Pavements having inadequate priming of Wet Mix Macadam/Water Bound Macadam may have lesser life due to non-achievement of properties

 

Advantages:

  • Superior penetration into miniature pores of sub bases
  • Easy spray
  • Extended breaking
  • Penetrate the cracks & crevices and impart strengths to the layers
  • Low temperature curing
  • Highly adhesive properties
  • Prevents permeability of atmospheric air to the bottom layers
  • Binds loose aggregates together strongly
  • Prevents raveling and rutting
  • Water resistant and enhances easy drainage of water
  • Compatible with Portland cement

 

 

Some Important specification are:
Residue on 600 micron IS sieve % by mass 0.05 % Max
Viscosity @ 25 deg C (Saybolt), sec 20 - 100
Binder - Residue by evaporation % Min 50.00%
Appearance Black in colour
Distillation (% by volume)
AT 190 deg. C 20-55
AT 225 deg. C 30-75
AT 260 deg. C 40-90
AT 315 deg. C 60-100
Water Content, (% by mass) Max 20
Coagulation at Low Temperature NIL



 

 

 

 

MS Cationic Bitumen Emulsions

We are engaged in offering MS Cationic Bitumen Emulsions that are exceptionally versatile and have delayed breaking action for various applications including:

 

  • Pot hole repair/Patch work

  • 20 mm Premix Carpet

 

Maintenance Mix:

 

  • This high quality material now makes it possible to fill pot holes or carry out patch repair with open graded cold premix made on-site

  • The methods typically used for the repair of potholes using asphalt emulsions are throw-and-roll and full-depth removal and replacement

  • All of these methods involve placing cold mix in the pothole with a shovel and compacting with a truck tire, vibratory plate compactor or steel wheeled roller

 

The procedure consists of:

 

  • Blow off water and debris from the pothole
  • Cut to rectangular shapes with all sides vertical
  • Remove loose material, if any
  • Spray tack coat of asphalt emulsion on all the side and bottom
  • Mix prepared of clean (preferably washed) and dry aggregates with NATIONAL MS cationic bitumen emulsion
  • Typically 13.2 mm and 11.2 mm sized aggregates mixed in 2:1 ratio
  • NATIONAL cationic bitumen emulsion content of approximately 7 % by weight of aggregates works best
  • Mix aggregates and emulsion properly to ensure good and uniform coating
  • Mix till entire emulsion is broken (turns to black in color)
  • The premix filled immediately into the pothole up to a level slightly higher than the adjoining road surface and rolled properly
  • Cover the repaired area with tack coat followed by a layer of 6 mm (passing) aggregate
  • Open the repaired pothole to traffic as soon as workers and equipment are clear


Premix Carpet:

 

  • For economical and fast construction of wearing course, emulsion is used for Premix Carpet
  • Ministry of Road Transport & Highway (MORT & H) has also recommended use of emulsion for this application in their clause 506.2
  • A tack coat is applied on the cleaned surface
  • The cold mix is prepared as per the above method and spread over the existing surface followed by either liquid seal coat or a premix seal coat

 

Advantages:


  • No heating required
  • Environment Friendly
  • Economical
  • Ease in application
  • Bond with existing surface
  • Least interference with traffic
  • Bonds well to cool, damp surfaces
  • Low temperature cure
  • Stable Patches
  • Resistance to peel off under traffic
  • Resistance to stripping by water
  • Minimal preparation time for surface repair
  • Instant setting and fast development of strength

 

Specifications:

Some Important specification are:
Residue on 600 micron IS sieve % by mass 0.05 % Max
Viscosity @ 50 deg C (Saybolt), sec 50-300
Binder - Residue by evaporation % Min. Min 65 %
Setting Time ~ 30 minutes
 

NTP Tar Products Pvt. Ltd.

Mr. Tarak Patel (Director)
106, Sarthak Apartments, 76, Alkapuri Society
Vadodara - 390007
Gujarat, India
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