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Experimental Investigation of CementSoda Residue for SolidificationStabilization of Cr-Contaminated Soils
المؤلفون المشاركون
Xu, Long
Yang, Chengbin
Chu, Chengfu
Zha, Fusheng
Zhu, Fanghua
Kang, Bo
Deng, Yongfeng
المصدر
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-13، 13ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-07-25
دولة النشر
مصر
عدد الصفحات
13
التخصصات الرئيسية
الملخص EN
Adopting more efficient and sustainable remediation materials is of great importance for the development of solidification and stabilization (S/S) technology.
Among them, soda residue could be considered as a desirable binder due to its strong adsorption for heavy metals.
For understanding of the performance of Cr-contaminated soils treated by cement/soda residue, the strength, leaching and microstructural characteristics, and the long-term effectiveness under wetting-drying cycles were comprehensively investigated in this study.
The results showed that the unconfined compressive strength (UCS) increased and the leached Cr3+ concentration decreased with curing time, binder content, and binder ratio.
Increasing the soda residue from C6S14 to C6S24 could improve soil strength and reduce leachability of Cr3+, while a reverse trend was presented with increasing initial Cr3+ concentration.
With subsequent wetting-drying cycles, the UCS further increased and then decreased; inversely, the leached Cr3+ decreased, followed by an increase of Cr-contaminated soils.
For the specimens of C6S14 and C6S24, the maximum UCS of 6.04 MPa and 6.48 MPa was reached; correspondingly, the minimum leached Cr3+ concentration of 2.78 mg/L and 1.93 mg/L was reached after 3 wetting-drying cycles, respectively.
Microstructure analysis results found that reaction products like calcium silicate hydrate (C-S-H) and ettringite (AFt) increasingly occupied the soil pore space and caused a denser soil structure after 3 wetting-drying cycles, which indicated the long-term effectiveness of contaminated soils treated by cement/soda residue.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Zha, Fusheng& Zhu, Fanghua& Kang, Bo& Xu, Long& Deng, Yongfeng& Yang, Chengbin…[et al.]. 2020. Experimental Investigation of CementSoda Residue for SolidificationStabilization of Cr-Contaminated Soils. Advances in Civil Engineering،Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1125436
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Zha, Fusheng…[et al.]. Experimental Investigation of CementSoda Residue for SolidificationStabilization of Cr-Contaminated Soils. Advances in Civil Engineering No. 2020 (2020), pp.1-13.
https://search.emarefa.net/detail/BIM-1125436
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Zha, Fusheng& Zhu, Fanghua& Kang, Bo& Xu, Long& Deng, Yongfeng& Yang, Chengbin…[et al.]. Experimental Investigation of CementSoda Residue for SolidificationStabilization of Cr-Contaminated Soils. Advances in Civil Engineering. 2020. Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1125436
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1125436
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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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
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