Method and Mechanisms of Soil Stabilization Using Electric Arc Furnace Dust

This paper reports the method and mechanism for improving the strength of marl and desert sand utilizing electric arc furnace dust (EAFD), an industrial by-product, in lieu of cement or lime. EAFD was used in conjunction with a small quantity (2%) of cement. The mechanical properties and durability...

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Bibliographic Details
Published in:Scientific reports 2017-04, Vol.7 (1), p.46676, Article 46676
Main Authors: Al-Amoudi, Omar S. Baghabra, Al-Homidy, Abdullah A., Maslehuddin, Mohammed, Saleh, Tawfik A.
Format: Article
Language:English
Subjects:
142/136
639/166/986
639/301/1023/1025
704/172/4081
Cadmium
Cement
Dust
Groundwater
Heavy metals
Humanities and Social Sciences
Leaching
Marl
Mechanical properties
multidisciplinary
Sand
Science
Soil cement
Soil stabilization
Soils
Steel industry
Unconditioned stimulus
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Summary:This paper reports the method and mechanism for improving the strength of marl and desert sand utilizing electric arc furnace dust (EAFD), an industrial by-product, in lieu of cement or lime. EAFD was used in conjunction with a small quantity (2%) of cement. The mechanical properties and durability characteristics of marl and sand mixed with 2% cement plus 5-, 10-, 20- or 30%-EAFD, by weight of the soil, were evaluated. The soil-cement-EAFD mixtures were used to determine their unconfined compressive strength (UCS), soaked California Bearing Ratio (CBR) and durability. The risk of leaching of toxic heavy metals, such as lead and cadmium, from the stabilized soils to the groundwater was also investigated. The mechanisms of stabilization of the selected soils due to the use of EAFD along with a small quantity of cement are also elucidated. The usage of 20 to 30% EAFD with 2% cement was noted to considerably improve the mechanical properties and durability of both marl and sand.
ISSN:2045-2322
2045-2322
DOI:10.1038/srep46676