Find the overlay thickness if the following data is available using the effective thickness method.Thickness of existing pavement: 260 mm GSB, 250 mm WBM, 90 mm BM and 40 mm BCConversion factors = 0.1 for GSB and WBM, 0.5 for BM and 0.6 for BCThickness of new pavement: 300 mm GSB, 250 mm WWM, 100 mm DBM and 40 mm BCConversion factors = 0.2 for GSB and WWM, 1 for DBM and BC

Find the overlay thickness if the following data is available using t

1.	Find the overlay thickness if the following data is available using the effective thickness method.Thickness of existing pavement: 260 mm GSB, 250 mm WBM, 90 mm BM and 40 mm BCConversion factors = 0.1 for GSB and WBM, 0.5 for BM and 0.6 for BCThickness of new pavement: 300 mm GSB, 250 mm WWM, 100 mm DBM and 40 mm BCConversion factors = 0.2 for GSB and WWM, 1 for DBM and BC
A.	230 mm
B.	250 mm
C.	120 mm
D.	130 mm
Answer» E.

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