Examination of Aggregate Gradation
7
Average 13,53
45 12,83
12,34
Average 12,58
Table 8. The results of the VIM intact Marshall compactor
Number of VIM
Blows 1
2
25 14.32
15.04
Average 14.68
50 13.52
13.92
Average 13.72
75 11.80
12.22
Average 12.01
The more the number of passes it into a smaller VIM value obtained. This is because more and more passing and impact, but given the increasingly dense layer
and the closer the air cavity. Table 9. Results VMA values intact slab roller compactor
Number of VMA
Passing 1
2
15 19,30
18,95
Average 19,13
30 18,61
18,29
Average 18,45
45 17,79
17,33
Average 17,59
Table 10. Results VMA values intact Marshall compactor
Number of VMA
Blows 1
2
25 19,20
19,88
Average 19,54
50 18,44
18,82
Average 18,63
75 16,82
17,22
Average 17,02
8 VMA is a cavity volume of air contained in dense asphalt concrete. VMA will
increase if the blanket thicker than asphalt.From Table9and 10 shows that the larger passing, then the value of the smaller VMA. This is due to each additional the
passing will lead to a mixture of the closer, so that the cavities filled by asphalt. Table 11. Results VFWA values intact slab roller compactor
Number of VFWA
Passing 1
2
15 25,47
26,03
Average 25,75
30 26,63
27,19
Average 26,91
45 28,13
29,05
Average 18,59
Table 12. Results VFWA values intact Marshall compactor
Number of VFWA
Blows 1
2
25 25,62
24,54
Average 25,08
50 26,93
26,27
Average 26,60
75 30,11
29,27
Average 29,69
VFWA is empty air cavity volume occupied by asphalt. From Table 11and 12 shows that the larger passing is given, then the greater the value VFWA. This is due
to each additional the passing will lead to a mixture of the closer, thus diminishing cavities. In the graph it can be concluded that the compaction using Marshall will
be more compact than using a slab roller for the given pressure more Marshall large and evenly so that are smaller and closed.