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Identification & Functionality
- Chemical Family
- Industrial Additives Functions
- Technologies
Features & Benefits
- Industrial Additives Features
- Features
- Consistent performance: The product meets a tight chemical specification and provides emulsions with consistently good performance with low and medium reactive aggregates
- Easy to use: The product has relatively low viscosity and dissolves easily in the water phase
- Product Overview
Product Region Comments Conventional slurry Quick-traffic slurry Microsurfacing Redicote 404 E, S, C Produce cationic emulsions for quick-traffic systems and microsurfacing. Choice of product determines mix time. Products can be combined to achieve reactivity suited to most aggregate types and climate conditions. Latex modified or polymer modified asphalt can be used. The products can also be used as dopes in these systems. Yes Yes Yes
Applications & Uses
- Markets
- Applications
- Applicable Processes
- Industrial Additives End Use
- Use Level
- 0.01-1.5%
- Application pH Range
- 1-2.5
Properties
- Physical Form
- Physical Properties
- Characteristics
- Specifications
- Note
- The product is sold under the tradename Redicote C-404 in the Americas region.
| Value | Units | Test Method / Conditions | |
| Density (at 10°C (50°F)) | 0.95 | g/cc | — |
| Density (at 20°C (68°F)) | 0.95 | g/cc | — |
| Density (at 30°C (86°F)) | 0.94 | g/cc | — |
| Density (at 40°C (104°F)) | 0.93 | g/cc | — |
| Viscosity (at 10°C (50°F)) | 456 | mPa s (cP) | — |
| Viscosity (at 20°C (68°F)) | 226 | mPa s (cP) | — |
| Viscosity (at 30°C (86°F)) | 122 | mPa s (cP) | — |
| Viscosity (at 40°C (104°F)) | 71 | mPa s (cP) | — |
| Flash Point | min. 200 | °C | — |
| Value | Units | Test Method / Conditions | |
| Pour Point | -7 (19) | °C(°F) | — |
| Value | Units | Test Method / Conditions | |
| Amine Value | 310 - 340 | mg KOH/g | VE 2.018 |
Technical Details & Test Data
- Quick-set Slurry and Microsurfacing with Traditional Hydrochloric Acid System
Redicote emulsifiers for the traditional slurry systems based on hydrochloric acid are fatty alkylimidazolines manufactured in Europe and the USA, derived from our own polyethylene amine raw materials.
Products provide a range of emulsion reactivity
The key to successful quick-set slurry and microsurfacing is to closely match the emulsion reactivity with the reactivity of the aggregate, under the local environmental conditions. The more reactive the aggregate and the hotter the local conditions, then the less reactive should be the emulsion in order to provide sufficient mix time.
The products Redicote 404, Redicote C-471, Redicote C-450, and Redicote C-500 are evolved from the original Catimuls emulsifiers introduced in the 1960s. While all the Redicote products used in the traditional microsurfacing systems share similar chemistry and are used in the same way, differences in the details of their chemical structure provide emulsions with different reactivity.
By the choice of emulsifier, or by combining more than one emulsifier, the emulsion formulator can match the emulsion reactivity with the available aggregates and climate conditions without the need for extreme high or low chemical loadings which might impact emulsion quality or performance.
All the Redicote products mentioned below meet the requirements of both microsurfacing and the lower technical demands of quick-set systems. Redicote C-471 produces the most reactive emulsions, suitable for the least reactive aggregates.
Redicote C-500 and Redicote C-450 product the least reactive emulsions suitable for the most reactive aggregates. Used alone or in combination the products allow the full range of microsurfacing aggregates to be used.
Redicote 404 provides a medium reactivity emulsion and is often the best choice where only a single emulsifier system is desired. Typical use levels for the products range from 0.6-1.8%, basis emulsion. Some contractors favor a process using very reactive emulsion recipes with low dosages of emulsifier, and use additional chemical on the paver “break retarder” to adapt the breaking characteristics. Others prefer not to use any chemical in the field, and the emulsion recipe will reflect these approaches.
Emulsion pH
With all the products in this class, cohesion development in the slurry is generally helped by low emulsion pH, although at the expense of some mix time. For the very fastest cohesion development a soap pH as low as 1 may be required, but for many systems a soap pH of 2 is sufficient to meet all the requirements for quick-traffic systems.
Bitumen quality
The system demands bitumens with some acid value, preferably 0.4 mg KOH/g or higher, to function correctly. As natural bitumens with this acid value become less available, dopes such as naphthenic or fatty acids can be added to the bitumen before emulsification to help cohesion development and durability of the seal.
Polymer
Natural or synthetic rubber latex is the most common modifier. Cationic grades of latex are compatible with the finished emulsion or can be injected into the soap. Anionic grades of latex can sometimes be incorporated into the soap in a batch process before acid addition but some stabilization (e.g. with Redicote E-11) may be required.
Break control additive
Redicote C-450 is water-soluble and is the preferred break control additive for the systems. Redicote C-471, Redicote 404 and Redicote C-500 can all be used as dope, but are less easily soluble in water. They form stable dispersions, or can be partially neutralized with acid to provide full solubility. Redicote 611 is a low viscosity fully water soluble product widely used to control mix time in Europe.
Cement, lime and aluminum sulfate
Cement is the most common filler for microsurfacing systems based on hydrochloric acid. Hydrated lime may be used with some highly reactive aggregates to provide more mix time. The filler is an essential part of the system and may vary between 0.25 and 1%, or even higher. The effect of filler on mix time is highly variable. In most cases the filler extends mix time.
Aluminum sulfate is used in western areas of the United States in so- called quick-set, quick-traffic systems, which provide many of the features of microsurfacing but to less demanding specifications. Occasionally aluminum sulfate is used in microsurfacing but always in conjunction with cement. The emulsifiers mentioned in this section are fully compatible with aluminum sulfate. Aluminum sulfate has the effect of extending mix time.
Packaging & Availability
- Country Availability
- Packaging Type
- Regional Availability
- Packaging Information
- Redicote 404 is available in bulk shipment, in steel tight head drums of 180kg (397lbs), or in one -way totes (IBCs) of 900kg (1984lbs) net weight.
Storage & Handling
- Storage Conditions
- Redicote 404 may be stored in carbon steel tanks. Bulk storage should be maintained at 15-35°C (59-95°F). Avoid extended heating above 65°C (150°F). Protect against exposure to moisture.
- Redicote 404 contains amines and may cause severe irritation or burns to skin and eyes. Protective gloves and safety goggles must be worn when handling this product.