While India has seen an influx of advanced paving and compaction equipment, introducing some more equipment and features would improve the quality of constructed roads. CW presents a wish list:
More than eight-lane lanes are proposed, but pavers with such a large width are unavailable or too expensive, says Atasi Das, Assistant Vice President, GR Infraprojects. "That's why there will be lane-by-lane paving, which slows down the work. Echelon pavement is an option, but it requires more vowels."
Das proposes to make a more scientific selection of a roll weight and type based on the soil type embankment, characterized by the plasticity index (PI). She says this would mean using the relevant IRC code (IRC: SP: 97-2013). For example, "where the PI is 15 and above, a sheep foot compactor should be used; for a PI value of 10 to 15, a roller of 14 tonnes must be used; for a PI value between 6 and 10, an 8-10 roller; and for a PI value between 0 and 6, a static 3-wheel 8-10 roller combined with 8-10 vibrating roller for regular fits."
2899
5795
3564
5346
5100
6000
11999
14000
5286
9515
7073
14146
1869
2400
7950
11500
1934
2901
2759
5499
3448
5575
65471
119099
299
950
1931
6000
10638
15199