General Description of Emulsion Asphalt CSS
Bitumen CSS emulsions are crafted by blending hot bitumen with a water phase, then passing the mixture through equipment like a rotating disc, cone, or wheel alongside a stator. During emulsification, the hot binder breaks into tiny globules, which disperse in water treated with an emulsifying agent. The water serves as the continuous phase, while binder globules form the discontinuous phase. Careful selection of emulsifying agents and precise manufacturing controls produce various types and grades of emulsified asphalts.
Based on the emulsifying agent, the emulsified asphalt can be: (1) anionic, where binder globules carry a negative charge, or (2) cationic, where they carry a positive charge. Additionally, both types come in several grades. For example: (1) anionic non-Virginia grades like RS-2 for tack and seal coats, SS-1H for slow-set slurry and tack; (2) cationic Virginia grades such as CSS-2 for tack and seal coats, CSS-1 for tack, CSS-1H for tack and slurry (both rapid and slow set), and CSS-2 for prime, tack, seal, and cold mix (with 7-12% solvent). Since particles with similar charges repel each other, asphalt globules stay apart until applied to soil or aggregate. Emulsified asphalts work well with cold, heated, dry, damp, or wet aggregates.
Advantages of Using Emulsion Asphalt CSS
- Requires no petroleum solvents for liquefaction.
- Produces minimal or no hydrocarbon emissions.
- Often usable without additional heating, saving energy.
- Efficiently coats damp aggregates, enhancing flexibility.
- Allows the use of cold materials, even in remote areas.
- Offers a wide range of emulsion types for diverse needs.
Applications of Emulsion Bitumen CSS
Due to its chemical and physical properties, Bitumen CSS finds versatile applications:
- Sealing (CSS-1, CSS-2, M-80, VPrime, precoating emulsions).
- Slurry surfacing (CQS, CQS-1H, LMCQS, microsystems).
- Patching and crack filling (CSS, CSS-R, SS-1).
- Fog sealing (SS-1, CSS, CSS-R).
- Cold mix production (CSS, CSS-R, specialty emulsions).
- Tack coating (CSS-1, CSS, SS-1, specialty emulsions).
- Dust control (CSS, SS-1, specialty emulsions).
- Stabilization and recycling (CSS, specialty emulsions).
- Waterproofing, roofing, and home applications (specialty emulsions).
- Agricultural uses (SS-1, CSS, specialty emulsions).
Packing of Emulsion Bitumen CSS
Emulsion Bitumen CSS is securely packed in thick steel drums placed on pallets to prevent leaks. It is also available in bulk in bitutainers and tankers, ensuring safe transport and storage.
Guarantee/Warranty of Emulsion Asphalt CSS
Gold Bitumen guarantees the quality of Emulsion CSS. We arrange for international inspectors to verify the quality and quantity of each shipment during vessel loading. Our QC team strictly monitors production with batch test reports before shipping. Bitumen CSS consistently meets ASTM/EN 15322:2009 standards, ensuring optimal performance in all applications.
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