Product Details:

1. Introduction

Quick setting bitumen emulsifier (CQS bitumen emulsifier), DXCQS2, is a high-performance emulsifier specifically designed for the production of CQS bitumen emulsion. It eliminates the need for acid adjustment during use. This emulsifier is primarily used in micro-surfacing applications. The CQS bitumen emulsifier has excellent stirring ability, strong adhesion, and stable performance during the mixing and dilution processes. It passes the cement mixing test and is ideal for cold mix and cold paving processes due to its short curing time and stable emulsification properties.

2. Product Features

• No Acid Adjustment Needed: The emulsifier eliminates the need for acid during production, simplifying the process.
• Good Stirring and Adhesion Ability: This product ensures strong adhesion between the bitumen and aggregates, enhancing performance.
• Stable Dilution Process: The emulsifier performs consistently during dilution, making it easy to handle and apply.
• Short Curing Time: The product offers a short curing time, which is beneficial for cold mix and cold paving applications.
• Suitable for Cold Mix and Cold Paving: Ideal for cold-mix bitumen emulsion production and suitable for micro-surfacing and other cold paving processes.

3. Technical Specifications

• Appearance: Brown liquid
• Solid Content (%): ≥85%
• pH (18% aqueous solution): 11-11.2
• Viscosity (at 25°C, CPS): 11500
• Bitumen Type: CQS bitumen emulsion
• Bitumen (wt%): 62%
• DXCQS2 (wt%): 2.0%
• SBR (60%) (wt%): 3.0%
• pH Value: 2.0-2.5
• Water (wt%): Up to 100%

4. Preparation and Application

• Preparation Process: Add a suitable amount of water into the soap tank, then gradually add the CQS bitumen emulsifier while stirring. Once the emulsifier is completely dissolved, add hydrochloric acid to adjust the pH of the soap solution to 2.0-2.5. Finally, add water and adjust the soap solution to the desired temperature. The prepared soap solution and hot bitumen are then sent to the colloid mill for shear, resulting in a stable bitumen emulsion.
• SBR Latex Modification: If modifying with SBR latex, it is recommended to pre-mix the latex into the soap tank to improve the storage stability of the emulsion.

5. Usage

• Applications: Suitable for micro-surfacing, slurry seals, and cold mix processes. It is particularly effective for cold paving operations due to its quick-setting nature and stable emulsification.

6. Storage and Handling

• Storage Conditions: DXCQS2 should be stored at room temperature (20-25°C). Avoid long-term storage at temperatures above 60°C to preserve product quality.
• Handling: Follow safety protocols when handling the emulsifier. Avoid direct skin or eye contact. Ensure proper ventilation during application.

7. Performance and Advantages

• Fast Setting: Offers quick setting time, making it ideal for cold paving processes where fast curing is essential.
• Stable Emulsion: Ensures excellent emulsion stability and strong adhesion between bitumen and aggregates.
• Simplified Production Process: No acid adjustment is required, reducing complexity and equipment corrosion.
• Efficient for High-Volume Construction: Particularly effective in high-traffic areas and large-scale roadworks.

Summary

Quick setting bitumen emulsifier (CQS bitumen emulsifier), DXCQS2, is designed for use in micro-surfacing and other cold mix applications. It offers excellent emulsification properties, short curing time, and high stability. Ideal for projects requiring rapid curing and minimal downtime, this emulsifier helps optimize the performance and efficiency of bitumen emulsions, particularly in high-traffic areas and cold paving processes.

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