8Hope B B, Ip A K C. Grout for Post-Tensioning Ducts. ACI Material Journal, July-Augnst, 1988.
9Lankard D R, Thomson N, Sprinkel M M. Improved Grouts For Bomded Tendons in Post-Tensioned Bridge Structures. US Department of Transpartation, Federal Highways Administration, Report No. FHWA-RD-91-092,USA.
10Ghorbanpour A, Madathenapall S C. performance of Groute for Post-Tesioned Bridge Structures. US Department of Transportationt Federal Highways Adminnistration, Report No. FHWA-RD-92-096, USA.
