Authors

Abstract

Summary
This study investigates the effect of urea product on the engineering properties of
gypseous soil obtained from Baiji area. The investigated soil can be described as
silty soil with low plasticity and high gypsum contents (32% gypsum). The
maximum dry density of the compacted soil increased with the addition of urea up
to 8% urea then decreased.
The direct shear test results showed that the effective angle of the internal
friction (

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