The Slurry Mixture Rotating Bottle Tester is a laboratory device used to evaluate the compatibility and performance of aggregates and emulsified asphalt in slurry mixtures. It simulates rotational agitation conditions to assess coating behavior, mixing stability, and abrasion resistance, helping determine the overall quality and workability of slurry seal mixtures in pavement applications.

Slurry Mixture Rotating Bottle Abrasion Tester

Model:TD758-1

I. Product Introduction

The Slurry Mixture Rotating Bottle Tester is developed and manufactured in accordance with JTG 3410-2025 Standard Test Methods of Asphalt and Asphalt Mixture forHighway Engineering (T0758-2025), with reference to ISSA A143 international standards. It is mainly used to evaluate the compatibility between aggregates with specified gradation and modified emulsified asphalt in slurry mixture design.

II. Technical Specifications

1.Power: 550 W

2.Voltage: 380 V

3.Rotational Speed: 20 r/min ± 0.5 r/min

4.Distance between abrasion tube center axis and rotation axis: 70 mm

5.Abrasion Tube Material: Acrylic (polymethyl methacrylate, PMMA)

6.Inner Diameter of Abrasion Tube: Ø60 mm;Internal Height: 400 mm ± 1 mm

7.Mold (Optional): Sleeve inner diameter: Ø30 mm; Height: 70 mm ± 0.2 mm

8.Plunger (Optional): Ø29 mm

III.Test Procedure

1. Specimen Preparation and Initial Mass Determination

The demolded specimen is air-dried at room temperature until a constant mass is achieved. After removing loose particles from the surface, the initial mass is measured with an accuracy of 0.01 g.

2. Water Absorption Mass Determination

The specimen is immersed in water at a specified temperature of 25°C (or as required) for a specified duration. It is then removed and gently wiped with filter paper until no visible moisture remains on the paper surface. The mass is then measured and recorded as the water absorption mass.

3. Abrasion Test Preparation

The specimen is placed into an abrasion tube containing 750 mL ± 25 mL of distilled water (or purified water). The tube is tightly sealed and installed on the rotating bottle abrasion tester.

4. Rotating Abrasion Test

Start the rotating bottle abrasion tester and operate it at a rotational speed of 1200 r/h for 3 h ± 3 min continuously.

5. Post-Abrasion Mass Determination

After the test, remove the specimen and dry its surface with filter paper until no visible moisture remains. The mass is then measured with an accuracy of 0.01 g, recorded as the post-abrasion mass.The abrasion loss is calculated based on the difference between the water absorption mass and the post-abrasion mass.

6. Boiling Water Integrity Test

Place the abraded specimen in a basket and immerse it in boiling water for 30 min.

7. Integrity Ratio Determination

Remove the specimen and select the largest intact fragment. After drying its surface moisture, measure its mass and calculate the ratio of this mass to the water absorption mass. This value is recorded as the integrity ratio.

8. Coating Ratio Evaluation

Air-dry the specimen for 24 h. Visually evaluate the coverage of the asphalt film on the specimen surface and estimate its percentage of the total surface area. This value is recorded as the coating ratio.