Geotechnical Properties and Microstructure of Lime-Fly Ash-Phosphogypsum-Stabilized Soil
المؤلفون المشاركون
Okonta, Felix N.
Mashifana, Tebogo Pilgrene
Ntuli, Freeman
المصدر
العدد
المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-9، 9ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2018-09-02
دولة النشر
مصر
عدد الصفحات
9
التخصصات الرئيسية
الملخص EN
The use of industrial waste as a potential stabilizer of marginal construction materials is cost effective.
Phosphogypsum and fly ash are industrial wastes generated in very large quantities and readily available in South Africa.
In order to explore the potential stabilization of vastly abundant expansive soil using larger quantity phosphogypsum waste as a potential modifier, composites with a mixture of lime-fly ash-phosphogypsum-basic oxygen furnace slag were developed.
However because of the presence of radionuclide, it was necessary to treat the phosphogypsum waste with mild citric acid.
The effect of the acid treatment on the geotechnical properties and microstructure of expansive soil stabilized with phosphogypsum-lime-fly ash-basic oxygen furnace slag (PG-LFA-BOF) paste was evaluated, in comparison with the untreated phosphogypsum.
Expansive soil stabilized with acid-treated PG-LFA-BOF paste exhibited better geotechnical properties; in particular, the high strength mobilized was associated primarily with the formation of various calcium magnesium silicide and coating by calcium silicate hydrate and calcium aluminate hydrate.
The soil microstructure was improved due to the formation of hydration products.
The stabilized expansive soil met the specification for road subgrades and subbase.
Stabilization of expansive soils with phosphogypsum, fly ash, and basic oxygen fly ash does not only improve engineering properties of soil but also provides a solution in relation to disposal and environmental pollution challenges.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Mashifana, Tebogo Pilgrene& Okonta, Felix N.& Ntuli, Freeman. 2018. Geotechnical Properties and Microstructure of Lime-Fly Ash-Phosphogypsum-Stabilized Soil. Advances in Civil Engineering،Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1115865
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Mashifana, Tebogo Pilgrene…[et al.]. Geotechnical Properties and Microstructure of Lime-Fly Ash-Phosphogypsum-Stabilized Soil. Advances in Civil Engineering No. 2018 (2018), pp.1-9.
https://search.emarefa.net/detail/BIM-1115865
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Mashifana, Tebogo Pilgrene& Okonta, Felix N.& Ntuli, Freeman. Geotechnical Properties and Microstructure of Lime-Fly Ash-Phosphogypsum-Stabilized Soil. Advances in Civil Engineering. 2018. Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1115865
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1115865
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر