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| Illustration 1 | g00803338 |
To make a parallel joint, do not allow the compactor to roll closer than 150 to 300 mm (6 to 12 inches) to the edge of first mat (3) closest to joint surfaces (2). Roll the parallel joint when second mat (1) is rolled.
To make the parallel joint, the edge of the screed should overlap the first mat 25 to 50 mm (1 to 2 inches). The edge of the screed should be flush with the first mat.
If the first mat has been rolled, raise the screed in order to allow enough material for compaction. In order to match the second mat to the first mat, the second mat must be thick enough for the compaction of the second mat. Roll the parallel joint as soon as possible.
The parallel joint must be bonded to a cooled mat. When you lay the second mat, you must allow enough material to compact in order to match the cool mat thickness. A compactor should roll the joint immediately after the paver.