اثر ترکیب بنتونیت و زئولیت بر روی برخی از خصوصیات مکانیکی و رئولوژی بتن خودتراکم

نوع مقاله : مقاله پژوهشی

نویسندگان

1 استادیار، گروه مهندسی عمران، واحد ارومیه، دانشگاه آزاد اسلامی، ارومیه، ایران

2 گروه مهندسی عمران، واحد ارومیه، دانشگاه آزاد اسلامی، ارومیه، ایران

10.22124/jcr.2024.26285.1641

چکیده

امروزه تولید بیش از حد سیمان در جهان بخصوص در ایران به یک بحران تبدیل شده. چرا که تولید سیمان باعث انتشار گاز دی اکسید کربن و تولید آلاینده در هوای شهرها شده. از این رو در این تحقیق برای افزایش کیفیت بتن و کاهش مصرف مصالحی مانند پودر سنگ و سیمان، از ترکیب بنتونیت و زئولیت استفاده شد. برنامه آزمایشگاهی این تحقیق شامل پنج طرح مخلوط با ترکیب همزمان بنتونیت و زئولیت در نسبت‌های مختلف 0%، 5/2%، 5%، 5/7% و 10% وزنی سیمان در بتن خودتراکم می‌باشد. نتایج این تحقیق نشان داد که استفاده همزمان از زئولیت و بنتونیت به میزان حداکثر 5% وزنی سیمان می‌تواند نتایج قابل قبولی داشته باشد. بطوریکه باعث افزایش 8% مقاومت فشاری و 11% مقاومت کششی بتن می‌شود. اما این پوزولان‌ها بدلیل جذب آب بالایی که دارند قوام بتن خودتراکم را افزایش می‌دهند و می‌توانند ریسک انسداد بتن را در پشت تراکم آرماتور افزایش دهند.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

The Effect of Bentonite and Zeolite Combination on Some Mechanical and Rheological Properties of SCC Concrete

نویسندگان [English]

  • Ashkan KhodaBandehLou 1
  • ali moghtaderi 2
1 Assistant Professor of the Faculty of Engineering, Civil Engineering Department, Urmia Branch, Islamic Azad University, Urmia, Iran
2 Department of Civil Engineering, Urmia Branch, Islamic Azad University, Urmia, Iran
چکیده [English]

Today, the large production of cement in the world, especially in Iran, has become critical. Because the production of cement has caused the production of carbon dioxide gas and increased air pollution in cities. Therefore, in this research, the combination of bentonite and zeolite was used to increase the quality of concrete and reduce the consumption of stone and cement powder. The laboratory program of this research includes five mixed designs with the simultaneous combination of bentonite and zeolite in different ratios of 0%, 2.5%, 5%, 7.5% and 10% by weight of cement in SCC concrete. The results of this research showed that the simultaneous use of zeolite and bentonite up to 5% by weight of cement can have acceptable results. It increases the compressive strength by 8% and the tensile strength by 11%. But these pozzolans increase the hardness of SCC concrete due to their high water absorption and the possibility of the concrete being blocked behind the rebar density increases.

کلیدواژه‌ها [English]

  • SCC Concrete
  • Mineral Pozzolan
  • Zeolite
  • Bentonite
  • Concrete Rheology

مراجع

  1. Kalhari, M., Saibani, M. (2012) .Durability of concretes containing zeolite against chloride ion penetration and corrosion. Second National Conference on Engineering and Construction Management, Amir Kabir University of Technology, Bandar Abbas Campus, Iran, pp. 83-48.
  2. A., Khoshro.M., Katbi.A. (2017) .Investigation of mechanical properties and durability of concrete containing zeolite cement supplement and micronanobubble water. Concrete Research, Year 12, No. 48, pp. 98-60.
  3. Ramzan Ali. A, Abdi Moghadam.M (2019) .Laboratory investigation of replacing different percentages of zeolite with cement on improving the mechanical characteristics and durability of concrete at high temperatures. Amirkabir Engineering Journal, Volume 52, Pages 1-18.
  4. S., Zahiri.R., Moradi.K., Shaiste.H. (2013) .Investigation of geological and mineralogical characteristics of zeolites of the After Semnan mine., Journal of Sciences and Earth, year 24, number 94, pages 27 to 36.
  5. Sadat Emini.A (2017) .Investigating the ability of Semnan zeolite to absorb water in removing pollutants from polluted water. First International Water Crisis Conference, Zabul University.
  6. Ghale Navi.M., Azhdari Moghadam.M., Urei Golmakani.A.A., (2008) .Study on increasing the durability of concrete against freezing and thawing cycles. 8th International Congress of Civil Engineering, Shiraz - Iran
  7. M.R., Rajabi.M., Ramezani.A.R., (2018) .Investigating the durability of concrete with composite fibers against thawing and freezing cycles with the help of the relative dynamic elasticity modulus., Concrete Research 12th year, number 2, Iran.
  8. Lopz, s. Nunes, j.s. Coutinho, c. Andrade, (2017). Linking fresh and durability properties of paste to scc mortar, cement concr. Compos. 209–226.
  9. Karmo, a.j. Ahmadian hosseini, b. Ashraf hosseini (2019) .investigation of the effect of adding crushed tiles on the strength and stability parameters of self-compacting concrete., 3rd international research conference on concrete technology, berlin, germany.
  10. Helmes, k. Andalibi, j. Kesai (2019) .evaluation of the effect of adding recycled aggregate on the mechanical properties of concrete. 10th international congress of civil engineering, faculty of civil engineering, tabriz, iran.
  11. zhang, m. Pradhouni (2020) .investigation of the effect of glass powder on the compressive strength of concrete (review article). 7th annual international congress on civil engineering, architecture and urban development, tehran, iran.
  12. M.R., Rajabi.M., Ramezani.A.R., (2018) "Investigating the durability of concrete with composite fibers against thawing and freezing cycles with the help of the relative dynamic elasticity modulus", Concrete Research 12th year, number 2, Iran.
  13. Zargar, h., dehghani, a., labafzadeh, m. P. (1401) .effect of calcium carbonate with nanocarbon coating on mechanical properties and durability of concrete. Journal of engineering, sharif omran, 2, 39-31.
  14. Shirgir, H. Alizadeh (2017) .Laboratory study of the effect of recycled ceramic shards on the wear resistance of permeable concrete in pavements. - 7th National Conference of Applied Researches in Civil Engineering and Architecture, Khawaja Nasiruddin Tosi University-Tehran, Iran.
  15. M. (2016) .Investigation of mechanical and rheological properties of self-compacting concrete containing recycled aggregates with micro-silica pozzolan. - master's thesis in civil engineering, structure orientation, Gilan University, Iran.
  16. Kalhari, M., Saibani, M. (2012) "Durability of metakaolin-containing concretes against the penetration of chloride ions and corrosion" Second National Conference on Engineering and Construction Management, Amir Kabir University of Technology, Bandar Abbas Campus, Iran, page 132-149.
  17. Mirgadaz Langroudi.M.M., Mohammadi.V. (2017) .Effect of bentonit on rheological, mechanical and durability characteristics of cement composites. Concrete Research, year 11, number 1, pages 61-74, Iran.
  18. A, Vahidi.V, Moradi.N (2016) .Laboratory investigation of the effect of nanoclay and fly ash on the compressive strength of cement-sand mortar,. Journal of Structural and Construction Engineering, Iran Structural Engineering Association, year 3, number 1, Iran.
  19. M., Rahmati.H., Salami.H. (1390) .The relationship between the process of obtaining concrete strength and different cements in Iran. - Journal of Concrete Technology Engineering, 1st year, 4th issue, Iran.
  20. A., Nahovi.A., Samadi.D., Farmanpour.G. (2014) .Comparison of electrical and compressive strength of concrete in freezing and water cycles. 6th annual concrete conference, Tehran, Iran.
  21. A. A., Ramzanianpour. A. M., Zulfiqaranseb. A. (2014) .The role of silica fume and silica fume mixed cements in the mechanical properties and durability of concrete. - 7th Annual Congress of Concrete Technology, Tehran, Iran.
  22. Old Takme Dash, A.M. Sadeghi, H. Afshin (2018) .Investigation of some durability characteristics of concrete surfaces containing rubber powder. Scientific and research journal of Azarbaijan University, Tabriz, Iran.
  23. Sharif Tehrani. S., Hosseini Lavasani. H., Shirgir. B. (2016) .Investigation of the effect of water flow and de-icing materials on asphalt concrete deterioration under freezing and thawing cycles. Scientific Research Journal of Civil Engineering, Modares, Iran.
  24. M., Rahmati.H., Salami.H. (1390) .The relationship between the process of gaining concrete strength and different cements in Iran. - Journal of Concrete Technology Engineering, Year 1, Number 4, Iran
  25. Goldost Rezaei, H. Tarvirdizadeh, (2015) .Investigation of the advantages and disadvantages of green and recycled concrete. 4th International Congress of Civil Engineering, Tehran, Iran
  26. Homayoun, M. J., Aghamajidi, R., Bazaee, A., & mansouri, B. (2022). Studying the Behavior and the Freezing Endurance of Heavy Concrete with Nano-Silica Gel and Ilmenite Powder in Different Volume Ratios. Journal of Concrete Structures and Materials, 7(2), 89-110.
  27. Soltani.J., Zunemat Kermani.M., (1400) .Investigation of the effect of rubberin light dense concrete containing silica and concrete without nano. 2nd Annual Conference of Civil Engineering Research, Tehran – Iran.
  28. A., Khoshro.M., Katbi.A. (2017) "Investigation of mechanical properties and durability of concrete containing metakaolin cement supplement and micronanobubble water" Concrete Research, Year 12, Number 48, Pages 60-98.
  29. Azad, B., & Bazaee, A. (2022). Comparison Of Cost And Time Of Construction RCCP And Asphalt Surface (Case Study Of Shiraz). Journal of Concrete Structures and Materials, 7(1), 114-136.
  30. H., Tadin.M., Taghi Tehrani.P. (2008) .Evaluation of the effect of the initial temperature of concrete on its resistance to consecutive cycles of freezing and thawing. - First National Concrete Conference, Tehran - Iran
  31. Iranian concrete standard .ABA.
  32. J., Azizi.H., Kohi.M. (2014) "Investigation of the effect of metakaolin in different grades of cement on the strength and permeability of concrete" Concrete Research, Year 8, Number 2, Pages 60-78.
  33. Topic 9 of National Building Regulations .2019 Edition.

فایل ها

هم رسانی

ارجاع به این مقاله

آمار