پیوندهای مفید
آمار
| تعداد نشریات | 9 |
| تعداد شمارهها | 451 |
| تعداد مقالات | 5,745 |
| تعداد مشاهده مقاله | 8,136,799 |
| تعداد دریافت فایل اصل مقاله | 6,605,829 |
کاربرد باطلههای فرآوری مس در تهیه بتن به منظور جلوگیری از آلودگی محیطزیست | ||
| نشریه مهندسی عمران امیرکبیر | ||
| مقاله 9، دوره 56، شماره 6، 1403، صفحه 705-728 اصل مقاله (1.4 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22060/ceej.2024.22706.8033 | ||
| نویسندگان | ||
| یوسف درزاده؛ علی اکبر دایا؛ مرضیه حسینی نسب* | ||
| گروه مهندسی معدن، دانشکده مهندسی شهید نیکبخت، دانشگاه سیستان و بلوچستان، زاهدان، ایران | ||
| چکیده | ||
| باطلههای مس محصول جانبی کارخانههای فرآوری مس هستند که کاربرد مناسبی برایشان تعریف نشده است و به دلیل حجم زیاد و خصوصیات فیزیکی و شیمیایی آن، مشکلات زیستمحیطی و اقتصادی بسیاری را به همراه دارند. پژوهش اخیر به بررسی تأثیر استفاده از باطله کارخانه فرآوری مس به عنوان جایگزین سیمان بر خواص مکانیکی و دوام بتن میپردازد. برای این منظور، پنج طرح اختلاط با درصدهای مختلف از باطله مس معدن چهل کوره در ساخت بتن استفاده شد. این باطلهحاوی سیلیسیم، آهن، منیزیم و آلومینیوم است. 105 نمونه شامل 75 نمونه مکعبی با ابعاد 10×10×10 سانتیمتر و 30 نمونه استوانهای با ابعاد 15 ×30 سانتیمتر تهیه شد. نتایج نشان داد که استفاده از 5 درصد باطلهمس باعث بهبود مقاومت فشاری نسبت به نمونه شاهد میشود. اما درصورت افزایش درصد باطله مس به 10 درصد، کاهش در مقاومت فشاری مشاهده شد که با وجود این کاهش، همچنان مقدار مقاومت فشاری، بیشتر از نمونه شاهد بود. با استفاده از باطله مس، کاهش ناچیزی در مقاومت کششی رخ داد. آزمایشهای مقاومت الکتریکی و جذب آب در سن 28 روز نشان دادند که استفاده از باطله مس باعث کاهش ناچیز در مقاومت الکتریکی و جذب آب بتن میشود. همچنین، افزودن 5 تا 10 درصد باطله مس بجای سیمان باعث کاهش هزینههای تولید بتن و کاهش مصرف انرژی با مصرف کمتر سیمان، کاهش آسیب به محیط زیست با تولید کمتر سیمان و مصرف بهینه باطلههای معادن مس خواهد شد. بنابراین، باطله مس به عنوان یک جایگزین مناسب برای جایگزینی جزئی سیمان در بتن قابلاستفاده است. | ||
| کلیدواژهها | ||
| باطلههای معدنی؛ معدن مس چهل کوره؛ مصالح ساختمانی؛ محیط زیست؛ بتن | ||
| موضوعات | ||
| تکنولوژی بتن؛ دوام بتن؛ محیط زیست؛ مدیریت پسماند ساختمانی؛ مصالح ساختمانی؛ مکانیک سنگ؛ مهندسی محیط زیست | ||
| عنوان مقاله [English] | ||
| The Use of Copper Tailing of Mineral Processing Plant in the Preparation of Concrete in order to Prevent Environmental Pollution | ||
| نویسندگان [English] | ||
| Yusuf Dorzadeh؛ Aliakbar Daya؛ Marzieh Hosseini Nasab | ||
| University of Sistan and Baluchestan | ||
| چکیده [English] | ||
| Copper tailing is the by-product of copper processing plants, and due to their large volume and physical and chemical characteristics, they bring many environmental and economic problems. The recent research examines the effect of using mineral processing tailings of copper as a substitute for cement on the mechanical properties and durability of concrete. For this purpose, five mixing plans with different percentages of copper tailings from the Chehel-Koreh mine were used in concrete production. This tail contains Si, Fe, Mg, and Al. 105 samples including 75 cubic samples with dimensions of 10×10×10 cm and 30 cylindrical samples with dimensions of 15×30 cm were prepared. The results showed that using 5% copper tail improved the compressive strength compared to the control sample. If the copper tail increased to 10%, a decrease in the compressive strength was observed, and despite this decrease, the compressive strength was still higher than the control sample. By using copper tailings, there was a slight decrease in tensile strength. Electrical resistance and water absorption tests at the age of 28 days showed that using copper tail causes a slight decrease in electrical resistance and water absorption. In addition, adding 5 to 10 percent copper tailings instead of cement will reduce concrete production costs and energy consumption with less cement consumption, reduce damage to the environment with less cement production, and optimal use of copper tailings. Therefore, copper tailings can be used as a suitable alternative for partial replacement of cement in concrete. | ||
| کلیدواژهها [English] | ||
| Mineral Tailings, Chehel-Koreh Copper Mine, Construction Materials, Environment, Concrete | ||
| مراجع | ||
|
[1] M. Mostaghelchi, R. Zahiri, Management of mineral tailings, solutions for control, reduction and processing of mineral tailings, 4th Conference of Iran's Economic Geology Association, (2013). (In Persian). [2] G. L. Bernd, Recycling, Reuse and Rehabilitation of Mine Wastes, Elements, 7(6) (2013) 405-410. [3] M. Davoudi Fard, G. Farghani, Evaluation of the environmental effects of mineral tailings, 30th Earth Sciences Conference, (2019). (In Persian) [4] B. Geoffrey, Mine Waste: A Brief Overview of Origins, Quantities, and Methods of Storage, Waste, A Handbook for Management, (2011) 77-88. [5] F.A. de Carvalho, J.N. Nobre, R.P. Cambraia, A.C. Silva, J.D. Fabris, A.B. dos Reis, B.V. Prat, Quartz Mining Waste for Concrete Production: Environment and Public Health, Sustainability, 14(1) (2021) 389. [6] R. Ince, Determination of concrete fracture parameters based on peak-load method with diagonal split-tension cubes, Engineering Fracture Mechanics, 82 (2012) 100-114. [7] A. Ebadipour, S. Ebrahimi, Effect of mineral tailings as a substitute for cement on concrete strength, Iran's National Environmental Research Conference, (2013). (In Persian) [8] C. Meyer, The greening of the concrete industry, Cement and Concrete Composites, 31(8) (2009) 601-605. [9] R. K. Dhir, Z. Fan, C. Limbachiya, Use of Copper Slag as Concrete Sand, Sustainable Construction Materials: Copper Slag, 31(4) (2017) 87-163. [10] B. Rezaei, Investigation of the possibility of recovering copper from the tailings of Sarcheshmeh copper processing plant, Tehran University, 34(1) (2000) 79-85. (In Persian) [11]. S. T. Blessen, R.C. G. Alok Damare, Strength and durability characteristics of copper tailing concrete, Construction and Building Materials, 48 (2013) 894-900. [12]. A. Darb Honary, Laboratory study of the effect of copper mine tailings on the mechanical properties of concrete, National Conference on Architecture, Civil Engineering, Urban Planning and Horizons of Islamic Art in the Declaration of the Second Step of the Revolution, (2021). (In Persian) [13]. H. Abdullahpour, A. Darb Honary, Laboratory investigation of mortar resistance by replacing cement with copper mining tailings, 8th National Conference of Applied Researches in Civil Engineering, Architecture and Urban Management, (2021). (In Persian) [14]. J. Esmaili, H. Aslani, Investigation of the effect of copper mine tailings on the stress-strain behavior of encased concrete, Civil and Environmental Engineering, 51(2) (2021) 11-19. (In Persian) [15]. B. G. Ahad, J. Ahmad, N. Hamidreza, Clinkerisation of copper tailings to replace Portland cement in concrete construction, Journal of Building Engineering, 51 (2022) 104275. [16]. X. Ruosong, G. Rui, L. Zhishuncheng, Q. Guangfei, Z. Yingjie, X. Youxiao, Z. Yingda, L. Ziying, Synthesis and influencing factors of high-performance concrete based on copper tailings for efficient solidification of heavy metals, Journal of Environmental Management, 325(1) (2023) 116469. [17]. M.H. Nabawi, An introduction to the geology of Iran. Tehran: Geological Organization of the country, (1976). (In Persian) [18]. D. Jan, A. Uliasz-Bochenczyk, M. Eugeniusz, CO2 emissions from Polish cement industry, International Journal of Greenhouse Gas Control, 4(4) (2010) 583-588. [19]. R. Rehan, M. Nehdi, Carbon dioxide emissions and climate change: policy implications for the cement industry, Environmental Science & Policy, 8(2) (2005) 105-114. [20]. G. Ellis, Industrially interesting approaches to “low-CO2” cements, Cement and Concrete Research, 34(9) (2004) 1489-1498. [21]. D.J. Flower, J.G. Sanjayan, Green House Gas Emissions due to Concrete Manufacture, The International Journal of Life Cycle Assessment, 12(5) (2007) 282-288. [22]. M. Glavind, C. Munch-Petersen Ravindra, K. Dhir, D. Thomas Dyer, Green Concrete – A Life Cycle Approach, Sustainable Concrete Construction, 5 (2002). [23]. ASTM C33-Density, Relative Density (Specific Gravity), and Absorption of Coarse Aggregate, (2010). [24]. ASTM C188-Density of Hydraulic Cement, (2010). [25]. N. Soliman, Effect of using Marble Powder in Concrete Mixes on the Behavior and Strength of R.C. Slabs, Materials Science Engineering, 3(5) (2013). [26]. L. Robert, F. Per, Microsilica as an Addition, Lea's Chemistry of Cement and Concrete (Fifth Edition), (2019) 509-535. [27]. British Standards Institution, BS 1881 Part 124, Testing Concrete Methods for Analysis of Hardnesd ConCrete, (2009). [28]. ASTM Standard C 496/C, Plitting Tensile Strength of Cylindrical Concrete Specimens, (2010). [29]. Bureau of Compilation and Promotion of National Building Regulations, "9th Topic: Concrete Buildings", 5th Edition, Tehran: Ministry of Roads and Urban Development, (2019). (In Persian) [30]. BS 1881-108 Methods of testing concrete. Method for making test cubes from fresh concrete (AMD 6105) (AMD 9074) (1983). [31]. BS 1881-110 Methods of testing concrete. Methods for making test cylinders from fresh concrete (AMD 6103) (1983). [32]. A.S. Abdulazeez, M.A. Idi, M.A. Kolawole, B. Hamza, Effect of waste glass powder as a pozzolanic material in concrete production, International Journal of Engineering Research & Technology, 9(2) (2020) 589-594. [33]. P. Azarsa, R. Gupta, Electrical Resistivity of Concrete for Durability Evaluation: A Review, Advances in Materials Science and Engineering, (1) (2017) 1-30. [34]. J. F. Lataste, Electrical resistivity for the evaluation of reinforced concrete structures, Non-Destructive Evaluation of Reinforced Concrete Structures, 2(1) (2010) 243-275. [35]. P.A.M. Basheer, P.R.V. Gilleece, A.E. Long, W.J. Mc Carter, Monitoring electrical resistance of concretes containing alternative cementitious materials to assess their resistance to chloride penetration, Cement and Concrete Composites, 24(5) (2002) 437-449. [36]. Gh. Saghir Shamsabadi, A.K. Abbasi Dezfouli, Investigation of some effects of using metakaolin as pozzolan in concrete, Structure– Earthquake Analysis, 13(1) (2015) 57-66. (In Persian) [37]. Q. Pachideh, M. Gholhaki, A. Mushtaq, Effect of adding different pozzolans on mechanical properties and water absorption of porous concrete pavement, Transportation Journal, 19(3) (2022) 51-66. (In Persian) | ||
|
آمار تعداد مشاهده مقاله: 854 تعداد دریافت فایل اصل مقاله: 757 |
||