پیوندهای مفید
آمار
| تعداد نشریات | 8 |
| تعداد شمارهها | 435 |
| تعداد مقالات | 5,634 |
| تعداد مشاهده مقاله | 7,427,927 |
| تعداد دریافت فایل اصل مقاله | 6,215,980 |
تثبیت پسماند خاک سنگ آهک در بتن خودتراکم و اثر آن بر خواص کارایی، مکانیکی و دوام | ||
| نشریه مهندسی عمران امیرکبیر | ||
| مقاله 14، دوره 52، شماره 9، آذر 1399، صفحه 2339-2356 اصل مقاله (1.88 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22060/ceej.2019.16143.6147 | ||
| نویسندگان | ||
| محمدامین حامدی راد1؛ سید سجاد میرولد* 2؛ مسعود عطاریان3؛ محمد ابراهیم کیانی فر4 | ||
| 1دانشکدة مهندسی عمران، دانشگاه علم و صنعت ایران | ||
| 2گروه سازه، زلزله و مدیریت ساخت، دانشکده مهندسی عمران، دانشگاه علم و صنعت ایران | ||
| 3کارشناس ارشد مهندسی ژئوتکنیک، مدیر آزمایشگاه دوام بتن شرکت ژیکاوا | ||
| 4دانشجوی کارشناسی ارشد محیط زیست موسسه خاوران، مسئول آزمایشگاه بتن شرکت ژیکاوا | ||
| چکیده | ||
| خاک سنگ آهک پسماندی است که در نتیجه خرد کردن سنگهای آهکی جهت تولید سنگدانه مصرفی در بتن بوجود میآید. وجود این ماده زائد در طبیعت موجب به وجود آمدن مشکلات گوناگون زیست محیطی میگردد. پژوهش حاضر به منظور تثبیت این پسماند در بتن خودتراکم و بررسی اثر آن بر خواص کارایی، مکانیکی و دوام صورت پذیرفته است. بدین منظور 9 طرح مخلوط حاوی درصدهای جایگزینی مختلفی از خاک سنگ آهک و بدون آن در انواع مواد سیمانی حاوی و فاقد میکروسیلیس مورد آزمایش و بررسی قرار گرفته اند. برای بررسی خواص مکانیکی از آزمایشهای مقاومت فشاری و مقاومت کششی غیر مستقیم و برای بررسی خواص دوام، آزمایشهای نفوذ یون کلراید (RCPT )و تخلخل باز بر روی نمونههای حاوی خاک سنگ آهک و همچنین نمونه شاهد فاقد آن انجام شد. خواص کارایی بتنهای خودتراکم نیز با انجام آزمایشهای جعبه L و جریان اسلامپ(Flow Slump )سنجیده شدند. نتایج نتایج نشان داد که نمونههای حاوی درصد بهینه ای (حدود 10) از خاک سنگ آهک دارای خواص کارائی، مکانیکی و دوامی بهتری نسبت به نمونه شاهد میباشند. در نتیجه با مصرف خاک سنگ آهک به عنوان یک نوع ماده پسماند در بتنهای خودتراکم، علاوه بر بهبود خواص کارایی، مکانیکی و دوام، می توان در راستای تأمین اهداف توسعه پایدار و حفظ محیط زیست گام برداشت. | ||
| کلیدواژهها | ||
| خاک سنگ آهک؛ پسماند؛ بتن خودتراکم؛ دوام؛ توسعه پایدار | ||
| موضوعات | ||
| تکنولوژی بتن؛ ضایعات جامد و مواد زائد خطرناک | ||
| عنوان مقاله [English] | ||
| Stabilization of limestone dust in self-compacting concrete and its effect on workability, mechanical and durability properties | ||
| نویسندگان [English] | ||
| MohammadAmin HamediRad1؛ Sajjad Mirvalad2؛ Masoud Attarian3؛ Mohamad Ebrahim Kianifar4 | ||
| 1School of Civil Engineering, Iran University of Science and Technology | ||
| 2School of Civil Engineering, Iran University of Science and Technology | ||
| 3MSc in Structural Engineering, Zhikava Company, Mashhad, Iran. | ||
| 4MSc Student in Environmental Engineering, Khavaran Institute Technician, Concrete Laboratory, Zhikava Company, Mashhad, Iran | ||
| چکیده [English] | ||
| Limestone dust is the by-product of limestone grinding in the process of concrete aggregate production. Such waste material causes various environmental problems. The present experimental study has focused on stabilization of limestone dust in self-consolidating concrete (SCC) in order to decrease its negative environmental effects; the workability, mechanical and durability properties of different SCC samples were investigated. With that regards, nine SCC mixtures containing different percentages of limestone dust, Portland cement and silica fume were devised and casted. Overall, compressive strength, indirect tension, rapid chloride penetration, density, absorption, voids, slump flow, and L Box tests were performed on all mixtures. Considering the results, concrete mixtures which contained 10 percent limestone dust performed the best compared to the control sample and other blends form the point of view of workability, compressive and tensile strength, absorption, and resistance against chloride ions penetration. Accordingly, in addition to stabilization of limestone dust in concrete, which well satisfies the global approach towards sustainable development, workability, mechanical, and durability properties of SCC samples were considerably improved. | ||
| کلیدواژهها [English] | ||
| Limestone dust, Waste, Self-consolidating concrete, Durability, Sustainable development | ||
| مراجع | ||
|
[1]D.W.S. Ho, A.M.M. Sheinn, C.C. Ng, C.T. Tam, The use of quarry dust for SCC applications, Cement and Concrete Research. 32 (2002) 505–511. [2]V.. Malhotra, G.. Carette, Performance of Concrete Incorporating Limestone Dust as Partial Replacement for Sand, ACI Materials Journal. 82 (1985) 363–371. [3]P. Turgut, H. Murat Algin, Limestone dust and wood sawdust as brick material, Building and Environment. 42 (2007) 3399–3403. [4]P. Turgut, Cement composites with limestone dust and different grades of wood sawdust, Building and Environment. 42 (2007) 3801–3807. [5]M. Karaşahin, S. Terzi, Evaluation of marble waste dust in the mixture of asphaltic concrete, Construction and Building Materials. 21 (2007) 616–620. [6]H. Binici, H. Kaplan, S. Yilmaz, Influence of marble and limestone dusts as additives on some mechanical properties of concrete, Academic Journals. 2 (9) (2007) 372–379. [7]A. Gorokhovsky, J.I. Escalante-Garcia, V. Gorokhovsky, D. Mescheryakov, Inorganic wastes in the manufacture of glass and glass-ceramics: Quartz-feldspar waste of ore refining, metallurgical slag, limestone dust, and phosphorus slurry, Journal of the American Ceramic Society. 85 (2002) 285–287. [8]E.L. Nagpal, A. Dewangan, E.S. Dhiman, E.S. Kumar, Evaluation of Strength Characteristics of Concrete Using Crushed Stone Dust as Fine Aggregate, International Journal of Innovative Technology and Exploring Engineering. 2 (2013) 102–104. [9]Y.W. C. Shi and C. Riefler, The Use of Crushed Limestone Dust in Production of Self-Consolidating Concrete (SCC), Special Publication. 219 (n.d.). [10]M. Galetakis, S. Raka, Utilization of limestone dust for artificial stone production: An experimental approach, Minerals Engineering. 17 (2004) 355–357. [11]P. Turgut, Limestone dust and glass powder wastes as new brick material, Materials and Structures. 41 (2008) 805–813. [12]Ö. Eren, K. Marar, Effects of limestone crusher dust and steel fibers on concrete, Construction and Building Materials. 23 (2009) 981–988. [13]N. Almeida, F. Branco, J. de Brito, J.R. Santos, Highperformance concrete with recycled stone slurry, Cement and Concrete Research. 37 (2007) 210–220. [14]A. Bishnoi, M. Bala, Effect of Quarry Dust as Partial Replacement of Sand in Concrete, International Journal of All Research Education and Scientific Methods. 3 (2015) 2455–6211. [15]M. Galetakis, G. Alevizos, K. Leventakis, Evaluation of fine limestone quarry by-products, for the production of building elements - An experimental approach, Construction and Building Materials. 26 (2012) 122–130. [16]B. Demirel, The effect of the using waste marble dust as fine sand on the mechanical properties of the concrete, International Journal of the Physical Sciences. 5 (2010) 1372–1380. [17]S.N. Raman, T. Ngo, P. Mendis, H.B. Mahmud, Highstrength rice husk ash concrete incorporating quarry dust as a partial substitute for sand, Construction and Building Materials. 25 (2011) 3123–3130. [18]G. De Schutter, G. Ye, K. Audenaert, D. Bager, V. BaroghelBouny, F. Bellmann, V. Boel, D. Bonen, L. Boström, M. Corradi, E. Gartner, Y. Hama, S. Jacobsen, R. Jansson, H. Justnes, K. Khayat, M. Khrapko, A. Leemann, L.F. Luco, R. Magarotto, A.S. Nowak, B. Persson, A.M. Poppe, C. Qian, M.J. Setzer, K. Sideris, A. Skarendahl, M. Sonebi, J. Stark, L. Tang, J. Trägardh, O. Wallevik, W. Zhu, I. Zverev, Final report of RILEM TC 205-DSC: Durability of selfcompacting concrete, Materials and Structures/Materiaux et Constructions. (2008). [19]M. Tennich, A. Kallel, M. Ben Ouezdou, Incorporation of fillers from marble and tile wastes in the composition of self-compacting concretes, Construction and Building Materials. (2015). [20]M. Tennich, M. Ben Ouezdou, A. Kallel, Behavior of selfcompacting concrete made with marble and tile wastes exposed to external sulfate attack, Construction and Building Materials. (2017). [21]B.K. Meisuh, C.K. Kankam, T.K. Buabin, Effect of quarry rock dust on the flexural strength of concrete, Case Studies in Construction Materials. (2018). [22]ASTM Standard C33/C33M, Specification for Concrete Aggregates, ASTM International. (2016). [23]ASTM C494, Standard Specification for Chemical Admixtures for Concrete, American Society for Testing and Materials. (2015) 1–9. [24]P.K. Mehta, P.J.M. Monteiro, Concrete: microstructure, properties, and materials, 2006. [25]ASTM C39, Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens, American Society for Testing and Materials. (2016) 1–7. [26]BSI, BS EN 206-9:2010 Part 9: Additional Rules for Selfcompacting Concrete (SCC), (2010). [27]ASTM C1611, Standard Test Method for Slump Flow of Self-Consolidating Concrete, Annual Book of ASTM Standards Volume 04.02. (2009) 1–6. [28]EFNARC, Specification and Guidelines for Self-Compacting Concrete, Report from EFNARC. 44 (2005) 32. [29]BSI, BS EN 12390-1:2000 - Testing hardened concrete. Shape, dimensions and other requirements for specimens and moulds, (2000). [30]ASTM International, ASTM C496 Standard Test Method for Splitting Tensile Strength of Cylindrical Concrete Specimens, ASTM International. (2011) 5. [31]ASTM C192/C192M, Standard Practice for Making and Curing Concrete Test Specimens in the Laboratory, American Society for Testing and Materials. (2016) 1–8. [32]BSI, BS EN 12390-3:2002 Testing hardened concrete. Compressive strength of test specimens, (2002). [33]ASTM C 642-06, Standard Test Method for Density , Absorption , and Voids in Hardened Concrete, United States: American Society for Testing and Material. (2008) 11–13. [34]C.C. Test, T. Drilled, C. Concrete, B. Statements, Standard Test Method for Electrical Indication of Concrete ’ s Ability to Resist Chloride, (2012) 1–8. [35]T. Celik, K. Marar, Effects of crushed stone dust on some properties of concrete, Cement and Concrete Research. 26 (1996) 1121–1130. | ||
|
آمار تعداد مشاهده مقاله: 1,127 تعداد دریافت فایل اصل مقاله: 1,072 |
||