ABSTRACT
ABSTRACT: Full Depth Reclamation (FDR) is a popular technique in rehabilitating distressed pavements. The technique is very effective and economical when the pavement problems extend beyond the surface layers and when base repair is essential in renewing the pavement. Engineering design of the FDR mix is important to ensure strength and durability of the FDR mix. Most of the existing mix design procedures for chemically stabilized FDR are based on laboratory compaction of specimens in a Proctor mold and determination of unconfined compressive strength of the mix. A procedure is proposed here to use the Superpave Gyratory Compactor (SGC) for preparation of compacted specimens and utilizing the indirect tensile strength of the compacted specimens for mix design. As part of this research, correlation between the strength of Proctor prepared specimens and SGC prepared specimens was evaluated. The strength of Proctor specimens was determined using unconfined compressive strength and that of SGC specimens was determined using indirect tensile strength. A total of 18 cement stabilized samples were prepared and tested. Test results indicated that there is a strong correlation between the two procedures.
