A concrete overlay with 200 mm thick CC layer of M50 grade concrete over an existing bituminous pavement with a 100 mm thick dense bituminous (DB) layer and a 450 mm thick granular layer was evaluated using FWD. In this paper an attempt has been made to back-calculate the layer moduli values of a small paneled thin white topping (SP-TWT) pavement using the linear elastic layer analysis similar to the one used for a flexible pavement. So, the back-calculation of moduli for rigid pavements is mainly based on the AREA parameter and the radius of relative stiffness (l) value of the slab as calculated from the defection bowl data. In the case of rigid pavement, the cement concrete (CC) layer is assumed to be resting on a Winkler foundation defined by the modulus of subgrade reaction (k) value.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |