Factors influencing the smoothness of pavement and measures (five)       

7. Improper selection of compaction machinery and compaction process

Reason: the selection of mechanical compaction compaction process improper; not correct; the operation is not correct.

Measures：

(1) choose suitable compaction machine.

(2) change the compaction process and equipment.

(3) correct operation and adjustment of compacting machinery.

8, the flatness error is large

Reasons: the construction of the course caused by flatness is too poor; after the end of the grass-roots construction, no attention to maintenance, maintenance and so on.

Measures：

(1) flatness caused by base construction, should be repaired promptly.

(2) after the end of the construction, attention should be paid to the maintenance, maintenance, and avoid heavy vehicle rolling.

(3) the construction site should be cleaned before paving, and the mixture should be removed; in the process of operation, the mixture should be prevented from spilling, especially to prevent the mixture from falling before the crawler of the paver.

(4) crawler paver with front end stacking sweeper.

In addition to the above factors, but also according to the construction needs matching contact or non contact type balance beam balance beam. The contact balance beam has a roller and a slipper balance beam; the non-contact balance beam has an ultrasonic beam and a laser beam. Of course, the operator should also strengthen training, so that they are familiar with paver technical performance, and can correct operation.