Easy Procedures for Installing Asphaltic Plug Joint

Materials & tools

• Asphaltic plug joint material
• Melting tank
• Crushed stones
• Iron furnace
• Yellow tapes
• Plate vibrator
• Scrapers
• Boards
• Flamethrower

Step 1
Apply asphalt special adhesive on the surface of the gap evenly. 15 minutes later, pour the melting asphaltic plug joint material in the gap and apply it with scrapers.

• The thickness is 1–2 mm.

You should pour the melting asphaltic plug joint material in the gap as even as you can.

Step 2
Put the steel plates neatly on the asphaltic plug joint material and place them in the middle of the gap.

Steel plates can strengthen the whole expansion joint system.

Placing the steel plates in the middle of the gap makes the bridge joints works well.

Step 3
Put crushed stones which have been heated at high temperature (130 °C – 150 °C) from one end of the gap.

Crushed stones can have a high-temperature heated in the iron furnace.

Crushed stones provide a strong basis for the whole system.

Step 4
Stick yellow tapes beside the gap, in order to keep both sides neat and clean.

Step 5
Pour melting asphaltic plug joint material again and cover the crushed stones. At the same time, flat them with a plate vibrator and some scrapers.

• In order to prevent sinking, the material in the gap is 1–2 mm high than the surface of bridge. Then you it can be adjusted optionally.
• In order to prevent the melting asphaltic plug joint material outflowing, you can block the edges using boards.

To prevent sinking, the material in the gap is high than the surface of bridge.

You can choose a plate vibrator and some scrapers to flat the surface of the gap.

Step 6
Flat the surface with flamethrower which have the function of preserving heat. Meanwhile, trim the edge and tear off the yellow tape.

Aesthetically, yellow tapes should be torn off after construction.

Step 7
When the material is cooled down (about 2 hours later), open to traffic.