CSS-1h bitumen emulsion

CSS-1h emulsion bitumen is a cationic emulsion produced with hard bitumen. CSS-1h bitumen emulsion is usually made by passing a mixture of hot bitumen and water phase between a rotating disc, cone or wheel and a stator.
Asphalt Emulsion CSS-1h is a cationic slow-set bitumen emulsion containing 57% bitumen, black in color and manufactured strictly according to ASTM D 2397M-13.

Application of CSS-1h emulsion bitumen

Applications of bitumen emulsion CSS-1h are:

Cold asphalt mixture: both with dense granulation and with sand
Mix in place

Slurry sealing and micro surfacing

Type of application in different types of asphalt pavement

Factory cold asphalt – base, liner and top
Continuous granulation
bitumen spraying
Sealing coating without fog seal aggregate
Primmest penetrating coating on the surface with high porosity
Single coat surface coating
dust binder dustproof
Mulching
Sealants
Asphalt procedures
Protective asphalt
Bitumen slurry and flood slurry sand

How to prepare

CSS-1h slow breaking emulsion bitumen can be prepared in the following ways:
Bulk (in the form of tankers, flexi tanks and IBC tanks)

Used barrel as new, 220 liters, net weight 200 ± 3 kg
New barrel, 220 liters, net weight 200 ± 3 kg

General Description of Cationic Bitumen Emulsion CSS-1h

Bitumen emulsion consists of three basic ingredients: bitumen, water, and an emulsifying agent. Based on specifications it may contain other additives, such as stabilizers, coating improvers, anti-strips, or break control agents. It is well known that water and asphalt will not mix, except under carefully controlled conditions using highly specialized equipment and chemical additives.
Bitumen emulsions CSS-1h is a cationic emulsion. Bitumen emulsions CSS-1h are usually made by passing the mixture of hot bitumen and water phase between a rotating disc, cone or wheel and a stator. In the emulsification process, the hot binder is mechanically separated into minute globules and dispersed in water treated with a small quantity of emulsifying agent. The water is called the continuous phase and the globules of the binder are called the discontinuous phase.by proper selection of an emulsifying agent and other manufacturing controls.
Cationic bitumen emulsions CSS-1h have a positive charge and hence a direct and very rapid reaction between the emulsion and an aggregate or pavement is possible. The size of the charge or the Zeta potential affects stability, the larger the charge the greater the repulsion, but as the aggregate is negatively charged the higher the zeta potential the more rapid the reaction.
So it is possible to stabilize a cationic emulsion in the same way that makes it a more rapid break. The other mechanism of evaporation is available too but as the emulsion is stabilized this form of break becomes slower. Thus a balance must be struck. After the electrostatic part of the reaction is complete the emulsion will rely on flocculation and coalescence to complete break.
After the break is completed the water must still be completely evaporated for the residual Asphalt to achieve full strength.
Bitumen Emulsion CSS-1h ASTM is designed for use in slurry seals and for cold storable mixtures for patching. They are designed for soil stabilization and also suitable for use with cold recycling. These emulsions are tailor made as per quality of aggregates and local site conditions.

While general guidelines can be given for selecting emulsions, laboratory testing is strongly recommended. There is no substitute for a laboratory evaluation of the emulsion and the aggregate to be used. Different types and quantities of emulsion should be tried with the aggregate to find the best combination for the intended use. An experienced technician can determine the type and grade of the emulsion to be used.
Cationic emulsions are preferred for use with negatively charged siliceous aggregates such as quartz, granite, sandstone and river gravel. In general, Cationic emulsions can be used with a wider range of aggregates, will tolerate greater quantities of moisture, and will break at a lower ambient temperature. The main application areas of Emulsion bitumen are surface dressing, tack coats, prime coat, slurry seal, and cold mixing.
Dust control (SS-1, CSS-1, CRS-1)
Tack coat (SS-1, SS-1h, CSS-1, CSS-1h, CRS-1)
Prime coat (SS-1, SS-1h, CSS-1, CSS-1h)
Fog seal (SS-1, CSS-1, MS-1-CMS-2, CRS-1)
Penetration prime (SS-1)
Cold mix asphalt, Mulching, Asphalt Sealers (CSS-1)
Chip seal, single, or multiple treatments (RS-1, RS-2, HFMS-1, HFMS-2, HFRS-2, CRS-2)
Sand seal (SS-1, SS-1h, CSS-1, CSS-1h, CMS-2h, CRS-1, CRS-2)
Slurry seal (SS-1h, CSS-1h,)
Sandwich seal, cape seal, chip seal (CRS-2)
Micro surfacing (CQS-1h)
Structural and surface plant mixture (SS-1, SS-1h, HFMS-2s, CSS-1, CSS-1h,)
Stockpiled patching mixture (HFMS-2s, CMS-2h)
In-place road mixing (SS-1, SS-1h, HFMS-2s, HFMS-2, HFMS-2h CMS-2, CMS-2h, CSS-1, CSS-1h)
Crack filler, joint coating (RS-2, HFMS-2h, CMS-2, CMS-2h, CRS-2P)
Asphalt sealers, Immediate Maintenance, Stockpile Maintenance Mixes (CMS-2)
Immediate Maintenance (CM2, CM2h)

Advantage of using bitumen emulsion CSS-1h

No petroleum solvent required to liquefy
• Little or no hydrocarbon emissions
•Because of low viscosity of the Emulsion as compared to hot applied Bitumen, The Emulsion has a good penetration and spreading capacity.
• In most cases, used with no additional heat. It does not need any pre-heating. Thus results in the case of handling for the user, besides saving in cost.
• The ability to coat damp aggregate
• Can use cold materials at remote sites. Cold application of Bitumen Emulsion ensures safety to the workforce; it is a user-friendly product. Being cold applied the work progresses much faster.
• Wide variety of emulsion types available today
• Economical
• Free from danger ( for fire )
• Environmental
• Harmless for worker health.
• It can use with moisture aggregates. It can be used even with wet aggregates thus enabling users to carry out work during the monsoon also.
• Application temperature is low and does not need heating while storage and transportation period. For this reason, it provides energy saving.
• Emulators increase adhesion they effect as anti-stripping agent
• It can use in four seasons. Especially it gives a chance application in the rainy region and it extends application period.
• It has a lot of application area and construction methods.
• Bitumen Emulsion does not require petroleum solvent to make them liquid as in cut back and also it is not required to be heated like normal Bitumen. Thus saving imported petroleum oil or firewood.
• Toxic fumes (Hydrocarbon emission) normally emitted from heated bitumen & cutbacks not present when Cationic Bitumen Emulsion is used, as no heating is required for its application.
• Energy saving & control of pollution & safety:
During the last 10-12 yrs., the country was in the quest for alternatives to Hot Mixing technology especially to save our beleaguered environment besides curbing the use of Imported petroleum oil, and our precious forests supplying firewood. Optimum use of Bitumen-emulsions can preserve Petroleum Oil and in turn, save our Environment and Foreign Exchange.
Packing of emulsion bitumen CSS-1h
Packing of bitumen emulsion CSS-1h is in a new thick steel drum on a pallet to prevent any leak inside of container also bulk in bitutainer and tanker.