Bitumen cationic emulsion CMS-2
CMS-2 bitumen is a cationic emulsion bitumen that contains 65% bitumen, is black in color and is produced under the ASTM D 2397M-13 standard.
Application in different types of asphalt pavement
Factory cold asphalt – base, liner and top
Instant spotting
Sealants
Asphalt procedures
Permeable macadam asphalt
with empty space
How to prepare CMS-2 bitumen
CMS-2 retarder 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
Selection and use of emulsion bitumen
Emulsion bitumen are used for almost all cases where soluble bitumen is used. In addition, their range of use is wider than that of soluble bitumen, so that there are certain cases where it is not possible to use soluble bitumen. Of course, this does not mean that bitumen emulsions can be used casually without checking, but their useful, effective and acceptable use requires the selection of bitumen emulsions suitable for the conditions of the work.
Effective factors in choosing types of emulsion bitumen
In choosing the type of emulsion bitumen, the type of executive operation that is used from this emulsion bitumen should be taken into consideration. For example, it is necessary to specify in which case emulsion bitumen will be used, such as surface asphalt, cold asphalt mixed in place, factory cold asphalt, surface coating, infiltration coating, or repair works. After determining the type of executive operation, other variables of the project should be examined.
Other factors that are more effective in this choice are:
Weather conditions during the operation (choosing the type of emulsion bitumen, mixing plan, equipment and work execution method depends on the weather conditions of the place during the operation)
The type of stone materials used
Available tools and equipment
Fast-breaking emulsion bitumen
(Cationic Rapid Setting-CRS)
This type of emulsion bitumen reacts quickly with stone materials and turns from emulsion to bitumen. Fast-breaking emulsion bitumen are mainly used in bitumen spraying operations, such as tack coat, seal coat with stone materials, sealing with sand, surface asphalt and infiltration macadam. CRS-2 and CRS-1 emulsion bitumen can be used for the said executive operations.
CRS-2 quick-breaking emulsion bitumen does not flow on the road surface due to high viscosity and is widely used for surface asphalt and waterproof coating with stone materials.
Retardant emulsion bitumen
(Cationic Medium Setting-CMS)
This type of emulsion bitumen is designed for mixing with coarse-grained stone materials, because they do not break immediately after contact with the aggregates, so the asphalt mixture prepared with them will be effective for several minutes. This type of emulsion bitumen is widely used in mobile asphalt plants and is mainly designed for the preparation of factory cold asphalt mixes.
CMS-2h bituminous emulsions with high viscosity do not flow on the road surface.
Slow breaking emulsion bitumen
(Cationic Slow Setting-CSS)
Slow breaking emulsion bitumen are designed to prepare a stable asphalt mixture, that is, after contact of the emulsion bitumen with stone materials, they will be very stable. This group of emulsions are used with stone materials with continuous granulation and a high percentage of fine grains. This type of emulsion bitumen has a long-term performance, as it is completely mixed with stone materials with continuous granulation and a high percentage of fine grains. This type of emulsion bitumen has a long-term performance in such a way that it is ensured that they are completely mixed with stone materials with continuous granulation.
All slow-set emulsion bitumen have low viscosity and can be diluted with water. Diluted slow-breaking emulsion bitumen can be used in the implementation of surface and infiltration coatings, sealing and coating of pavement surface and dust control of dirt and sand roads. Coagulation of the bitumen particles of these emulsions completely depends on the evaporation of its water. Therefore, if they are used in mixtures such as sealing slurry and it is necessary that the breaking speed is faster, Portland cement or hydrated lime can be added to it. Sealing grout is used.
