Question

The CBR test camed out on a subgrade soil gave the following readings.
Penetration Load Penetration Load Penetration
(mm) (kg) (mm)
10.0
The different pavement materials are as follows
Sandy soil with CBR value = 12 94
Soil kankar mixed with CBR value = 2890
(11) Broken stone & gravel with CBR = 94 96
(iv) Bituminous concrete for surfacing = 5 cm thick
Design pavement structure for commercial vehicles of 2500/day with 8%
Growth factor. Use guidelines of IRC 37 – 1970​

Answer 1

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