Slurry mixture process

The production process of slurry mixture, particularly focusing on high-polymer slurry mixtures, is a meticulous and complex endeavor that involves several crucial steps to ensure the final product's exceptional performance and stability. This article outlines the comprehensive production process of slurry mixture.

1. Raw Material Selection

The production begins with the selection of high-quality raw materials. These include:

High-Grade Emulsified Asphalt (Colored or Regular): Serving as the primary binder, it provides the necessary adhesion and durability to the pavement.

Composite Graded Aggregate (Colored or Regular): This component contributes to the strength and stability of the pavement, while also influencing its appearance and texture.

Environmentally Friendly Weather-Resistant Pigments: These provide stable coloring to the mixture, ensuring vibrant and long-lasting hues.

Polymer Materials: Such as polymer emulsions and resins, which enhance the mixture's properties like abrasion resistance and weather resistance.

Additives: Including dispersants, stabilizers, and thickeners, which improve the processing and application performance of the mixture.

2. Material Ratio Determination

Based on product requirements and production processes, the ratios of various raw materials are determined to ensure the mixture possesses superior performance.

3. Raw Material Mixing

The emulsified asphalt, aggregate, pigments, polymer materials, and additives are added to the mixing equipment in the specified ratios for initial mixing.

4. Stirring and Dispersion

Electric machinery is used to stir the mixture, ensuring that the pigment particles are uniformly dispersed within the polymer materials to avoid issues like pigment agglomeration and precipitation. This step also ensures thorough mixing of all raw materials to form a stable mixture.

5. Quality Control

Throughout the mixing process, quality monitoring and testing are conducted to ensure the uniformity and stability of the mixture.

6. Performance Testing and Adjustment

After mixing, the finished product undergoes performance testing, including adhesion, abrasion resistance, and weather resistance. Based on the test results, adjustments to the ratios or production processes are made to ensure the product quality meets the required standards.

7. Packaging and Storage

Qualified products are packaged and stored in a cool, dry place, avoiding direct sunlight and high temperatures to maintain product quality and stability.

8. Safety and Environmental Protection

During production, appropriate safety equipment such as helmets, protective glasses, and gloves are worn to ensure the safety of production personnel. Additionally, wastewater and exhaust gases generated during production are treated before discharge to minimize environmental pollution. Efficient resource utilization and waste reduction are also emphasized to achieve sustainable development.

Application Process (Illustrated with Colored High-Polymer Slurry Mixture)

Surface Preparation: The asphalt substrate surface is cleaned of loose soil and dust, while the concrete substrate surface undergoes precision milling to remove laitance, creating a 2-3mm texture depth. Dust is then removed using a blower. Tape is applied around the construction area, and an interfacial agent is sprayed on the cleaned concrete substrate. After the interfacial agent dries for 30 minutes, the next step proceeds.

Mixture Preparation: The high-polymer slurry mixture, being a two-component material, is prepared by mixing the base agent and hardener in a 25:1 ratio. After mixing, the mixture must be used within an hour to prevent gelation.

Application: The surface temperature must be below 45°C before application. The slurry mixture is applied in two coats, with a drying period of three hours between coats. After application, the surface is maintained for 4-12 hours (depending on temperature) before opening to traffic.

In conclusion, the production process of slurry mixture is a sophisticated and precise operation requiring strict control over each production stage to ensure the final product's exceptional performance and stability. Emphasis on safety and environmental protection is also crucial for achieving green production.