Stabilization of peat soil using locally admixture

Abstract EN

Peat has considerable negative geotechnical properties such as high water content, low shear strength, high organic matter, and low bearing capacity and consequently a significant severing high compressibility takes place that makes it as one of the most difficult soils for constructing structures over its natural state.

Because of these geotechnical problems of peat soil, improvement mechanism is so essential when the peat soil exists to deal with it as a soil foundation.

In this paper, the physical and mechanical properties of the peat are discussed.

Also, the two creative mixtures were prepared to study their effect on the properties of peat and to what extent can these new mixtures improve both the physical and mechanical properties of peat layers to bear stresses as the soil foundation, the first one consisted of clayey diatomite which is widespread in Egypt, calcium carbonate, lime and water.

On the other hand, the prepared second mixture has the same ingredients of the first one except to replace the clayey diatomite by the cement.

For both mixtures two systems of cubes were prepared, and peat was added to the two prepared mixtures.

Then the all cubes were submerged in clean water, and also in sewage water for forty-five days for the sake of studying their durability against submergence and environmental changes, and the cubes’ resistances were measured.

The obtained results in this study were compared by other currently used mixtures for stabilizing peat soils to date for focusing clearly on the performance magnitude of this study.