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Chemical Stabilization of Gypseous Subgrade Soils for Road Construction in Iraq | ||
| Journal of Engineering and Sustainable Development | ||
| Article 1, Volume 17, Issue 4, 2013, Pages 1-13 | ||
| Author | ||
| Aamir Mahsen Mahawish | ||
| Abstract | ||
| This paper describes the soil stabilization process, the process involves stabilize gypseous soil with various percentage of lime and cement, separately, furthermore 1%Phosphorus pentoxide was added with the same percentage of lime and cement to determine the effect of Phosphorus pentoxide when it was mixed with other additive; the soil was brought from Abu Ghraib city. The gypsum content of the soil is found to be 35%. To improve this soil, many soil specimens were prepared by adding different percentage of lime or portland cement. The effects of the additives were studied. Furthermore, Phosphorus pentoxide was added to study its effect when lime or cement is added. It is found that adding 6% of cement and 1% of Phosphorus pentoxide will improve CBR and Absorption characteristics of the gypseous soil while 6% lime with 1% P2O5 reduces the swelling of the gypseous soil after soaking in water for four days. | ||
| Keywords | ||
| Gypseous soil; Chemical stabilization; Lime; Cement; Phosphorus pentoxide; Swelling; CBR; Absorption test | ||
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