Abstract
The Study aims to evaluate the suitability of quaternary deposits in AL-Alam area as filling materials in earth fill dams. The geotechnical properties of deposits for three stations show that the type of soil is (ML) and the curves of grain size analyses confirm the curve of Zone C., while the ratio of total dissolved salts(TDS) and gypsum contents ranges between (2.71-8.61)% and (0.18-0.68)% respectively The values of liquid limit and plastic limit ranges between (40.2-44.7)% and (10.5-13.7)% respectively. According to Iraqi specification, the deposits of station (3) are suitable for filling materials in earth dams, while the geotechnical properties of the deposits in the stations (1) and(2) are within the specifications ranges except the ratios of (TDS).
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