—Construction of structures always involves
excavation, and recompaction following foundation installation.
In some cases foundations are placed on compacted sandy soils.
The influence of relative compaction on the strength of sandy
soils in Kuwait is examined herein by a comprehensive
laboratory testing program on surface samples. The program
includes basic properties, compaction and, direct shear tests.
Various soil parameters were determined including the
compaction characteristics, the cohesion c, angle of friction φ.
The results indicate that as the relative compaction increases
towards 100%, the strength increases and the soil
compressibility decreases. A comparison was made between the
soil parameters for the samples compacted on the dry side, and
on the wet side of optimum moisture content at several relative
compaction ratios. The difference in the values obtained for the
two cases are explained. The effect of using 1% by weight
cement additive is also examined.
—Relative compaction, shear strength, cohesion,
angle of friction, silty sands.
Nabil F. Ismael is with the Civil Engineering Department, Kuwait
University, Kuwait (email: firstname.lastname@example.org).
Mariam Behbehani is with Ministry of Public Works, Kuwait.
Cite:Nabil F. Ismael and Mariam Behbehani, "Influence of Relative Compaction on the Shear Strength of Compacted Surface Sands," International Journal of Environmental Science and Development vol. 5, no. 1, pp. 8-11, 2014.