Chemical stabilization of baiji sand dunes in iraq 1. Effect of some soil stabilizers on the infiltration rate of sand

Abstract

In this study, the effect of soil chemical stabilizers including polyvinyl alcohol 125,000 (PVA) (0.2% and 0.4%); ferquatac resin emulsion RB-50 (F.E.) (0.14, 0.18, 0.2 and 0.4 lm'2); bitumen emulsion Al-55 (B.E.) (0.3, 0.4, 0.5 and 1.0 lm"2); aquapol resin 35-0019 (Aql) (0.33% and 0.66%) and aquapol resin 35-0031 (Aq2) (150, 175, 200 and 250 gm m ) on the infiltration rate of Baiji dunes sand was investigated. The results indicated that, both PVA concentrations increased the infiltration rate; whereas, the remaining chemicals reduced it. The reductions in the infiltration rate caused by F. E. (0.2 and 0.4 m"2); B. E. (0.5 and 1.0 1 m"2); Aql (0.66%); and Aq2 (250 gm m ) rendered the samples impermeable. While, the infiltration rates under the remaining concentrations of these chemicals were in excess of the minimum acceptable rate of 0.25 cm hr" .