Wich grade gsb used in previous projects.

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Accepted Answer

The grade of GSB used in previous projects varies depending on the specific project requirements.

The grade of GSB (Granular Sub-Base) used in previous projects is determined based on factors such as traffic load, soil conditions, and project specifications.
Different grades of GSB, such as GSB-20, GSB-25, GSB-30, etc., may be used in different projects.
For example, in a high-traffic highway project, a higher grade of GSB like GSB-30 may be used to ensure better stability and durability.
On the other hand, in a low-traffic road project, a lower grade like GSB-20 may be sufficient.
The selection of the grade of GSB is typically done by conducting laboratory tests on the available soil and considering the design requirements of the project.

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