Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Industrial Additives Functions
- Technologies
Features & Benefits
- Labeling Claims
- Industrial Additives Features
- Features
- High reactive aggregates: Cationic quick-set emulsions made with Redicote C-450 provide mix time even with reactive aggregates and in hot weather conditions
- Medium and low reactive aggregates: Used together with Redicote C-471 it provides emulsion recipes suitable for a wide range of aggregate reactivity and field conditions
- Water-soluble: Its low viscosity and water solubility make it an ideal break retarder for slurry systems
- Micro surfacing: Emulsions formulated with Redicote C-450 can meet specifications for micro surfacing as well as quick-set slurry surfacing
- Product Overview
Product Region Comments Conventional slurry Quick-traffic slurry Microsurfacing Redicote C-450 A 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 Additives:
Generally the emulsifier can also be used as a break retarder on the slurry paver. Water soluble Redicote E-11HF-1, Redicote E-11HF, Redicote 611, Redicote E-7000 and Redicote C-450 are particularly suitable because they are water soluble and do not contain flammable solvents.
Applications & Uses
- Applications
- Applicable Processes
- Industrial Additives End Use
- Application pH Range
- 1-3
- Use Level
- 0.7 - 1.5% (Cationic quick set emulsion)
Properties
- Physical Form
- Physical Properties
- Specifications
| Value | Units | Test Method / Conditions | |
| Density (at 10°C (50°F)) | 0.97 (8.08) | g/cc (lbs/U.S. gal) | — |
| Density (at 20°C (68°F)) | 0.96 (8.04) | g/cc (lbs/U.S. gal) | — |
| Density (at 30°C (86°F)) | 0.96 (8.00) | g/cc (lbs/U.S. gal) | — |
| Density (at 40°C (104°F)) | 0.95 (7.96) | g/cc (lbs/U.S. gal) | — |
| Viscosity (at 10°C (50°F)) | 8700 | mPa s (cP) | — |
| Viscosity (at 20°C (68°F)) | 3100 | mPa s (cP) | — |
| Viscosity (at 30°C (86°F)) | 1350 | mPa s (cP) | — |
| Viscosity (at 40°C (104°F)) | 650 | mPa s (cP) | — |
| Flash Point | 200 | °C | — |
| Pour Point | -5 | °C | — |
| Value | Units | Test Method / Conditions | |
| Water Content | max. 1 | % | SMA CL-007 |
| Amine Value | 445 - 485 | mg KOH/g | SMA CL-002 |
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 C-450 is available in bulk shipment, in tight head steel drums of 400 lbs (181 kg) net weight, or in one-way totes (IBCs) of 2000 lbs (907 kg) net weight.
Storage & Handling
- Storage Conditions
- Redicote C-450 may be stored in carbon steel tanks. Bulk storage should be maintained at 25-50°C (77-122°F). Avoid extended heating above 65°C (150°F). Protect against exposure to moisture.
- Redicote C-450 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.