Esmul

Esmul

A fluid colloidal system in which liquid droplets are dispersed in a liquid. An emulsion is denoted by the symbol o/w if the continuous phase is an aqueous solution and w/o if the continuous phase is an organic liquid Bitumen emulsions are heterogeneous, two phase fluid systems consisting of two immiscible liquids, bitumen and water, stabilised by an emulsifier. The bitumen is dispersed throughout the continuous aqueous phase in the form of discrete particles that are held in suspension by electrostatic charges imparted to the bitumen particles by an emulsifier.


the crude oil distillation process




emulsion production flow chart


Emulsion Usage by Type

Type Recommended uses
RS-1 A quick setting emulsion used for Tack coat
CSS-1/SS-1 Slow setting emulsion used for Prime coat
CSS-1h A slow setting emulsion with low residual penatration used for Tack coat
MS A medium setting emulsion used for plant or road mixes with coarse aggregate for premix carpet (Workability and coating depend on nature of coarse aggregate)
SS-2 A slow setting emulsion used for plant mixes with graded fine aggregate in SDBC, MSS, BM, DBM and BC.
Grade
RAPIT SATTING (RS1) MEDIAM SATTING (MS) SLOW SATTING (SS1) COLD BITUMEN

Emulsion input variable relationship




Physical and chemical requirements of emulsion




Emulsion consumption areas


Plant Features

The facility offers bulk bitumen storage tanks with appropriate temperature sensors and gauges along with a fully automated emulsion mill of 7.5 MT per hr. capacity. The facility offers bulk emulsion storage tanks and a packing unit which offers the promise of “Q&Q” to the fullest extent, both for bulk and packed users. This facility also offers value added bitumen for specified users. A fully equipped laboratory supports engineers to evaluate quality levels for every batch roll out.

Delivery Promise

  • Round the year availability of stocks.
  • Consistent quantity and quality (Q&Q) for every load.
  • Hassel free commercials ensures minimization of lead time.

Surfacing vis a vis flexible pavement

The surfacing consists of two layers. The lower layer is termed the ‘binder course’. Its primary function is to distribute the stresses from the surface course to the base without over stressing. It also provides a layer with good surface regularity upon which the surface course can be constructed. The tolerance at the top of the surface course is often 6 mm from the design levels.

The upper layer of the surfacing is termed the surface course. It is this layer and this layer only that is visible to the road user. The surface course has to meet a formidable list of requirements. It must :

  • Resist deformation by traffic
  • Be durable, resisting the effects of wheather, abrasion by traffic and fatigue
  • Provide a skid-resistant surface
  • Generate acceptable levels of noice
  • Provide a surface of acceptable riding quality
  • Except in the case of porous asphalt, be impervious thus protecting the lower layers of the pavement
  • Contribute to the strength of the pavement structure
  • Generate acceptable levels of spray.

Health and safety

Emulsions are unlikely to present any significant health or safety hazard when properly used in the recommended application and good standards of industrial and personal hygiene are maintained. Avoid contact with skin. Use protective clothing i.e. coveralls, gloves, boots, neck and face protectors.

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