Abstract: The principles of the formation of the gel as reactions between polyvinyl alcohol (PVA) and borax are briefly introduced in this paper. The PVA gel can be potentially used as a sealing material for the leaking. The various mix designs of the PVA gel were laboratory tested and the optimized mix design was obtained. The field tests indicated that this material can be satisfactorily used in broken soils with small fissures.

Key words: PVA Gels, Leaking Sealing, Polyvinyl Alcohol, Borax