Impact of Silica Fume on the Strength Characterizes of Contaminated Soil
In this paper a silica fume (SF) utilized as an admixture for improving the strength characterizes of contaminated soil and create new useful soils. Compaction test and direct shear test are used to evaluate the strength properties of clean and contaminated soil. Mixing SF with contaminated soil by...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Erbil Polytechnic University
2020-06-01
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| Series: | Polytechnic Journal |
| Subjects: | |
| Online Access: | https://polytechnic-journal.epu.edu.iq/home/vol10/iss1/2 |
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| Summary: | In this paper a silica fume (SF) utilized as an admixture for improving the strength characterizes
of contaminated soil and create new useful soils. Compaction test and direct shear test are used
to evaluate the strength properties of clean and contaminated soil. Mixing SF with contaminated
soil by crude oil is a rare study carried out. The strength characterizes of clean and polluted soil
with crude oil was investigated. Three amount of light crude oil is combined with soils artificially
in the percentage of 3%, 6%, and 9% by dry weight. However, three portions of SFs are used in
the experimental work, which are 0%, 12%, and 18%. In the compaction test, results show that
optimum moisture content (OMC) decreases with increasing degree of contamination, inversely
while adding SF, OMC is increased. Maximum dry density dramatically decreased with an increasing
amount of SF and crude oil. The shear strength properties enhance by utilizing SF where observed
that the cohesion in clean soil is increased from 25.3 to 40.3 kPa and in contaminated soil by
9% crude oil is raised from 12.3 to 18.6 kPa so that SF can be rate as a successful material to
enhance the soil properties. |
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| ISSN: | 2707-7799 |