کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10688071 | 1017970 | 2016 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A concrete material with waste coal gangue and fly ash used for farmland drainage in high groundwater level areas
ترجمه فارسی عنوان
مواد بتنی با زباله های زغال سنگ و خاکستر های پروازی برای زهکشی زمین های کشاورزی در مناطق سطح بالای سطح آب استفاده می شود
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کلمات کلیدی
زغال سنگ خاکستر پرواز بتن، احیاء زمین، زهکشی زمین کشاورزی، ضریب نفوذپذیری،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
Because farmland drainage is difficult in coal mining subsidence areas with high groundwater level and the utilization rate of mine solid wastes (including coal gangue and fly ash) is low, this paper predominately discusses the permeability of the concretes composed of coal gangue and fly ash when applied in farmland drainage ditches. In this study, two experiments were designed. One experiment investigated the permeability and compressive strength of the concrete that used waste coal gangue and fly ash. The experiment consisted of five mixes: using waste coal gangue to replace 25% and 15% of the gravel, using fly ash to replace 10% and 15% of the ordinary Portland cement, and a blank control. The other experiment investigated the permeable rate of an indoor simulation drainage ditch lined with the material that had the mixing proportion of mix V from experiment one; this mixing proportion was found to have the largest permeability coefficient and also satisfied the compressive strength standard. The results of this study indicate that the concrete using waste coal gangue and fly ash had better water permeability than ordinary concrete. The concrete in this study had a high subsurface drainage modulus, making it feasible for application in coal mining subsidence areas with high groundwater levels. Moreover, partial replacement of ordinary Portland cement by fly ash and coarse aggregate by coal gangue can alleviate environmental problems.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Cleaner Production - Volume 112, Part 1, 20 January 2016, Pages 631-638
Journal: Journal of Cleaner Production - Volume 112, Part 1, 20 January 2016, Pages 631-638
نویسندگان
Jinman Wang, Qian Qin, Sijia Hu, Kening Wu,