HDS-III/II Asphalt Pavement Seepage Meter

1Purpose:

HDS-III/II Asphalt Pavement Seepage Meter

Used to determine the water permeability coefficient of asphalt mixture pavement and rolled asphalt mixture specimens. To test the water permeability of the road surface and the mix design of asphalt mixture.

IITechnical Specifications:

1. Diameter of shallow cup on the base: φ 150mm

2. Measuring cylinder volume: 600ml

3.水位高： 600mm

4. Resolution: 2ml

5. Weights: 4 pieces, each weighing 2.5kg

IIICooperate with experimental attachments:

1. Iron rings or other forms of loads are used to weight the base, weighing approximately 8kg

2. One stopwatch, one bottle of red ink

3. Several glass putty, one bucket and one funnel each

4. Broom, measuring cup (600ml), etc

5. A fine wire brush and a piece of chalk

4Usage:

HDS-III/II Asphalt Pavement Seepage Meter

1. Clean the test piece placed on a solid surface or the road surface to be tested.

2. Place the marking ring and draw marks along the inner and outer rings with chalk. Remove the marking ring to leave two concentric circles on the surface of the specimen or road surface, with the inner ring being 150mm and the outer ring being 220mm.

3. Place the standard ring within concentric circles and align the inner ring markings with the bottom surface of the standard ring

4. Check if there are any areas of deep construction in the concentric circles. If so, it is necessary to fill the texture depth of these areas with sealant first to prevent water from seeping out through these surface textures during the water infiltration test, which may affect the test results.

5. Apply a thin layer of sealing material between the inner and outer marking rings and use a scraperdaoRepair into a sealing material ring with an inner diameter of 150mm and an outer diameter of 220mm, with a thickness of approximately 3mm. During repair, press down on the standard ring to prevent it from shifting.

6. Press the water seepage meter onto the sealing material with force, so that the base of the water seepage meter matches the sealing material ring, and add 2 weight blocks to prevent pressure water from flowing out between the base and the road surface.

7. Close the instrument valve, inject water into the instrument valve, and fill the position marked with * line O.

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