Evaluation of the effects of logging residual ash for improving some soil properties of forest road fill slope

Document Type : Scientific article

Authors

1 1 MSc in Forest Engineering, Sari University of Agricultural Sciences and Natural Resources

2 Associate Prof., Department of Forestry, Sari University of Agricultural Sciences and Natural Resources, Sari, Iran

3 Assistant Professor, Department of Forestry, University of Agricultural Sciences and Natural Resources of Sari. Iran

4 Assistant professor, Ahar Faculty of Agriculture and Natural Resources, University of Tabriz, Ahar , Iran

Abstract

In order to strengthen and stabilize the soil masses in the range of soil till optimum, it should be used appropriate stabilization methods. The purpose of this study was to evaluate the effect of excess ash as an additive to soil and improve soil properties. To do this, 15 soil samples from the forest road fill slope were randomly selected combined with 3, 6, 9 and 12 weight percent logging residual ash. In order to investigate the effect of addition of stabilizing agents on the chemical and mechanical parameters of soil in the studied area, the experiments Atterberg limits, California bearing ratio, moisture as well as acidity, electrical conductivity, phosphorus, nitrogen, organic matter and carbon were carried out on control and treated soil samples. Data were analyzed using one-way ANOVA and Tukey tests were used to compare the averages. The results of the experiment show that the addition of logging residual ash increased plastic limit and California bearing ratio and reduced liquid limit and plasticity index. Also, the results of one-way ANOVA showed that the mean difference in moisture, acidity and nitrogen were not significant (P>5%) while electrical conductivity, phosphorus, potassium, organic matter and carbon showed significant differences.

Keywords

References

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Forest Research and Development
Volume 6, Issue 3
December 2020
Pages 367-380

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