(يرﺎﺘﺧﺎﺳﺰﻳر · 2020-05-29 · engineering properties of concrete incorporating...

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ﻣﺠﻠﺔ ﺑﺘﻦ ﺗﺤﻘﻴﻘﺎت زﻣﺴﺘﺎ ن89 ، ﺳﻮم، ﺳﺎل ﺷﻤﺎر ة2 ص25 - 17 درﻳﺎﻓﺖ ﺗﺎرﻳﺦ: 5 2 / 9 / 89 ﭘﺬﻳﺮش ﺗﺎرﻳﺦ: 30 / 11 / 89 دوم ﺷﻤﺎرة ﺳﻮم، ﺳﺎل ﺑﺘﻦ، ﺗﺤﻘﻴﻘﺎت/ 17 ﻧﺴﺒﺖ اﺛﺮ ﺑﺮرﺳﻲ ﺟﺎﻳﮕﺰﻳﻦ ﻧﺎﻧﻮذرات ﻣﻘﺪار ﭘﺎﻳﻴﻦ ﻫﺎي ﻛﺎﻫﺶ ﺳﻴﻤﺎن ﺑﻪ ﺷﺪه ﺑﺘﻦ در ﻳﺎﻓﺘﻪ ﻫﺎي ﭘﺮﻣﻘ ﺎوﻣﺖ) وﻳﮋﮔﻲ ﺑﺮرﺳﻲ رﻳﺰﺳﺎﺧﺘﺎري و ﻣﻜﺎﻧﻴﻜﻲ ﻫﺎي( ﺑﻬﺎدري ﻫﺎدي داﻧﺸﻜﺪ اﺳﺘﺎدﻳﺎر ة اروﻣﻴﻪ داﻧﺸﮕﺎه ﻓﻨﻲ، ﺣﺴﻴﻨﻲ ﭘﻴﺎم ﻣﺴ ﻓﻨﺎوري ﺗﺤﻘﻴﻘﺎت ﻣﺮﻛﺰ ﭘﻴﺸﺮﻓﺘﻪ، ﻣﺼﺎﻟﺢ و ﺑﺘﻦ اﻧﺴﺘﻴﺘﻮ ﺗﺤﻘﻴﻘﺎت و ﭘﮋوﻫﺶ ول ﻃﻠﻮع، ﭘﻴﺸﺮﻓﺘﻪ ﻫﺎي ﺷﺮﻳﻒ ﺻﻨﻌﺘﻲ داﻧﺸﮕﺎه[email protected] اﺳﻼﻣﻲ اﺑﺮاﻫﻴﻢ ﻣﻬﻨﺪﺳﻲ، ﻣﻜﺎﻧﻴﻚ و ﻋﻤﺮان ﻣﻬﻨﺪﺳﻲ داﻧﺸﻜﺪه ارﺷﺪ ﻛﺎرﺷﻨﺎﺳﻲ داﻧﺸﺠﻮي ﻛﻠﻤﺒﻴﺎ داﻧﺸﮕﺎه وﺣﻴﺪي ﺳﻴﺎوش ﻓﻨﺎوري ﺗﺤﻘﻴﻘﺎت ﻣﺮﻛﺰ ﭘﻴﺸﺮﻓﺘﻪ، ﻣﺼﺎﻟﺢ و ﺑﺘﻦ اﻧﺴﺘﻴﺘﻮ ﻛﺎرﺷﻨﺎس ﻃﻠﻮع، ﭘﻴﺸﺮﻓﺘﻪ ﻫﺎي ﺷﺮﻳﻒ ﺻﻨﻌﺘﻲ داﻧﺸﮕﺎه ﭼﻜﻴﺪه اﻳ در ﻣﻲ ﺳﻴﻠﻴﺲ ﻧﺎﻧﻮذرات ﺑﺎ ﺳﻴﻤﺎن ﺟﺎﻳﮕﺰﻳﻨﻲ ﺑﺮرﺳﻲ ﺑﻪ ﻣﻘﺎﻟﻪ ﭘﺮدازﻳﻢ. ﻧﺴﺒﺖ ﺑﻪ ﺟﺎﻳﮕﺰﻳﻨﻲ اﻳﻦ1 ﺑﻪ1 ﻧﻤﻲ ﺑﺎﺷﺪ. ﺗﺎﻛﻨﻮن ﭼﺮاﻛﻪ ﻣﺎد ﻫﺮ ﺑﺎ ﺳﻴﻤﺎن ﺟﺎﻳﮕﺰﻳﻨﻲ ﻣﻘﺪاري ﺑﻪ ﭘﻮدري ﻳﺎ ﭘﻮزوﻻﻧﻲ ه اﺳﺖ ﺷﺪه ﻛﺎﺳﺘﻪ ﺳﻴﻤﺎن ﻛﻪ ﺑﻮد. ﻧﺎﻧﻮذرات ﭘﮋوﻫﺶ اﻳﻦ در اﺳﺎس، ﻫﻤﻴﻦ ﺑﺮ ﻛﻢ ﻣﻘﺎدﻳﺮ ﺣﺪ در ﺳﻴﻠﻴﺲ) 3 - 0 (% ﭘﺬﻳﺮﻓﺖ ﺻﻮرت ﺛﺎﺑﺘﻲ و ﺑﺎﻻﺗﺮ درﺻﺪ ﺑﺎ ﺳﻴﻤﺎن ﻛﺎﻫﺶ اﻣﺎ ﮔﺮدﻳﺪﻧﺪ، اﺿﺎﻓﻪ ﺑﺘﻦ ﻣﺨﻠﻮط ﺑﻪ) 10 % ﻛﺎﻫﺶ ﺳﻴﻤﺎن ﻣﻘﺪار.( ﭘﺬﻳﺮﻓﺖ ﺻﻮرت دﻟﻴﻞ ﭼﻨﺪ ﺑﻪ ﻣﻮﺿﻮع اﻳﻦ. وﻳﮋ ﺳﻄﺢ ﺳﺒﺐ ﺑﻪ ﻧﺎﻧﻮذرات آﻧﻜﻪ اول ة ﻣﺨﻠﻮط ﻛﻞ در راﺣﺘﻲ ﺑﻪ ﺑﺎﻻﻳﺸﺎن ﻧﻤﻲ ﭘﺨﺶ د اﻧﺘﻘﺎﻟﻲ ﻧﻮاﺣﻲ از ﺑﻌﻀﻲ در اﺳﺖ ﻣﻤﻜﻦ و ﺷﻮﻧﺪ ﻛﻠﻮﺧﻪ اﺧﻠﻲ ﻧﻤﺎﻳﻨﺪ اﻳﺠﺎد را ﻣﻘﺎوﻣﺘﻲ ﻛﻢ ﻫﺎي. ﻟﺬا ﻳﺎ درﺻﺪﻫﺎ ﻛﺎرﮔﻴﺮي وﻳﮋﮔﻲ ﺑﻬﺒﻮد راﺳﺘﺎي در ﻧﺎﻧﻮذرات ﺑﺎﻻي ﻣﻘﺎدﻳﺮ ﺑﺘﻦ دواﻣﻲ و ﻣﻘﺎوﻣﺘﻲ ﻫﺎي رﺳﻴﺪ ﻧﺨﻮاﻫﺪ ﺳﺮاﻧﺠﺎم ﺑﻪ ﺣﺎﺻﻠﻪ ﻫﺎي. ﻋﻠﺖ ﻛﻪ ﻋﻠﺖ دوﻣﻴﻦ ﻣﻲ ﻧﻴﺰ ﭘﮋوﻫﺶ اﻳﻦ اﺻﻠﻲ ﻣﻘ ﺟﺎﻳﮕﺰﻳﻨﻲ اﺛﺮ ﺑﺮرﺳﻲ ﻫﺪف ﻛﻪ اﺳﺖ ﺻﻮرت ﺑﺪﻳﻦ ﺑﺎﺷﺪ ﺳﻴﻤﺎن ﺑﺎﻻﺗﺮ ﻧﺴﺒﺖ ﺑﻪ ﻣﻘﺎدﻳﺮ ﺑﺎ ﻧﺎﻧﻮذرات ﻛﻢ ﺎدﻳﺮ ﻣﻲ ﺑﺎﺷﺪ. ﺳﻴﻠﻴﺲ، ﻧﺎﻧﻮذرات ﺑﺎﻻي ﻗﻴﻤﺖ ﻋﻠﺖ ﺑﻪ ﭼﺮاﻛﻪ اﻳﻦ ﭘﺨﺶ ﻣﻨﺎﺳﺐ اﻣﻜﺎﻧﺎت وﺟﻮد ﺑﺎ ﺣﺘﻲ ﻣﺎده اﻳﻦ ﺑﺎﻻي ﻣﻘﺎدﻳﺮ ﻛﺎرﮔﻴﺮي ﺑﻮد ﻧﺨﻮاﻫﺪ ﺻﺮﻓﻪ ﺑﻪ ﻣﻘﺮون ذرات. ﺟﺎﻳﮕﺰﻳﻨﻲ ﻣﻌﻘﻮل ﺣﺪ در ﻧﻴﺰ ﺳﻴﻤﺎن ﻛﺎﻫﺶ ﻃﺮﻓﻲ از ﻣﺘﻌﺎ و ﻣﻌﻤﻮﻟﻲ ﻫﺎي و ﺑﺎﺷﺪ ﭘﺬﻳﺮﻓﺘﻪ ﺻﻮرت رف ﻣﻲ آﺷﻜﺎر ﺧﻮﺑﻲ ﺑﻪ ﺳﻴﻠﻴﺲ ﻧﺎﻧﻮذرات ﺗﻮاﻧﺎﻳﻲ ﮔﻮﻧﻪ ﺑﺪﻳﻦ ﮔﺮدد. ﻣﺎد ﺳﻴﻤﺎن ﭼﺮاﻛﻪ ة ﻣﻲ ﺳﻴﻤﺎﻧﻲ ﭘﺎﻳﻪ ﻣﺼﺎﻟﺢ و ﺑﺘﻦ در ﭼﺴﺒﻨﺪﮔﻲ اﺻﻠﻲ- ﺑﺘﻦ ﻣﻘﺎوﻣﺖ ﻛﺎﻫﺶ ﺑﺎً ﻃﺒﻴﻌﺘﺎ آن ﻛﻤﺒﻮد و ﺑﺎﺷﺪ ﺑﻮد ﺧﻮاﻫﺪ ﻫﻤﺮاه ﻣﺒﻨﺎ ﻃﺮح ﺑﻪ ﻧﺴﺒﺖ ﺛﺎﻧﻮﻳﻪ ﻫﺎي. واژه ﻫﺎي ﻛﻠﻴﺪي: ﻧﺎﻧﻮذرا ﻧﺴﺒﺖ ﻛﺎﻫﺶ ﺳﻴﻤﺎن ﺑﻪ ت ﺑﺘﻦ ﻳﺎﻓﺘﻪ، رﻳﺰﺳﺎﺧﺘﺎر ﺧﻤﺸﻲ، ﻣﻘﺎوﻣﺖ ﻓﺸﺎري، ﻣﻘﺎوﻣﺖ ﭘﺮﻣﻘﺎوﻣﺖ، ﻫﺎي

Transcript of (يرﺎﺘﺧﺎﺳﺰﻳر · 2020-05-29 · engineering properties of concrete incorporating...

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تحقيقات بتن مجلة 2ةشمارسال سوم، ،89نزمستا

17-25ص

2/9/89 5: تاريخ دريافت 30/11/89: تاريخ پذيرش

17 / تحقيقات بتن، سال سوم، شمارة دوم

هاي يافته در بتن شده به سيمان كاهش هاي پايين مقدار نانوذرات جايگزينبررسي اثر نسبت )هاي مكانيكي و ريزساختاريبررسي ويژگي(اومت پرمق

 هادي بهادري

 فني، دانشگاه اروميه ةاستاديار دانشكد

پيام حسيني دانشگاه صنعتي شريفهاي پيشرفته طلوع، ول پژوهش و تحقيقات انستيتو بتن و مصالح پيشرفته، مركز تحقيقات فناوريؤمس

[email protected]  ابراهيم اسالمي

 دانشگاه كلمبيا دانشجوي كارشناسي ارشد دانشكده مهندسي عمران و مكانيك مهندسي،

سياوش وحيدي  دانشگاه صنعتي شريفهاي پيشرفته طلوع، كارشناس انستيتو بتن و مصالح پيشرفته، مركز تحقيقات فناوري

چكيدهچراكه تاكنون . باشدنمي 1به 1اين جايگزيني به نسبت . پردازيمن مقاله به بررسي جايگزيني سيمان با نانوذرات سيليس ميدر اي

بر همين اساس، در اين پژوهش نانوذرات . بود كه سيمان كاسته شده استه پوزوالني يا پودري به مقداري جايگزيني سيمان با هر مادكاهش % 10(به مخلوط بتن اضافه گرديدند، اما كاهش سيمان با درصد باالتر و ثابتي صورت پذيرفت %) 0-3(سيليس در حد مقادير كم

بااليشان به راحتي در كل مخلوط ةاول آنكه نانوذرات به سبب سطح ويژ. اين موضوع به چند دليل صورت پذيرفت). مقدار سيمانكارگيري درصدها يا هلذا ب. هاي كم مقاومتي را ايجاد نماينداخلي كلوخهشوند و ممكن است در بعضي از نواحي انتقالي دپخش نمي

دومين علت كه علت . هاي حاصله به سرانجام نخواهد رسيدهاي مقاومتي و دوامي بتنمقادير باالي نانوذرات در راستاي بهبود ويژگيادير كم نانوذرات با مقادير به نسبت باالتر سيمان باشد بدين صورت است كه هدف بررسي اثر جايگزيني مقاصلي اين پژوهش نيز مي

كارگيري مقادير باالي اين ماده حتي با وجود امكانات مناسب پخش اين هچراكه به علت قيمت باالي نانوذرات سيليس، ب. باشدميرف صورت پذيرفته باشد و هاي معمولي و متعااز طرفي كاهش سيمان نيز در حد معقول جايگزيني. ذرات مقرون به صرفه نخواهد بود

- اصلي چسبندگي در بتن و مصالح پايه سيماني مي ةچراكه سيمان ماد. گرددبدين گونه توانايي نانوذرات سيليس به خوبي آشكار مي .هاي ثانويه نسبت به طرح مبنا همراه خواهد بودباشد و كمبود آن طبيعتاً با كاهش مقاومت بتن

هاي پرمقاومت، مقاومت فشاري، مقاومت خمشي، ريزساختاريافته، بتن ت به سيمان كاهشنسبت نانوذرا: كليدي هاي واژه

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II-425

gr/cm3

ASTM

C128-01gr/cm3

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ASTM C127-01

gr/cm3

kg/m3

I-425

m2/g

L.O.IK2O+Na2O SO3MgO Fe2O3CaO Al2O3 SiO2

gr/cm3

pH

SiO2

nmm2/gr

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SEM

BS 1881:

part117: 1993

ASTM

C496-04

SEM

SEM

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ASTMC496-96

Ca(OH)2

Ca(OH)2

C-S-H

C-S-H

C-S-H

C-S-H

C-S-H

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C-S-H

Ca(OH)2

SEM

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SEM

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DAM

Ca(OH)2

C-S-H

Micro-Filling

Nucleus

[1].Kazberuk, M.K., Lelusz, M., "Strength development of concrete with fly ash addition," Journal of Civil Engineering and Management, Vol. XIII, No.2, 115-122, 2007. [2].Hale, M.W., Seamus, F.F., Bush Jr, T.D., Russell, B.W., "Properties of concrete mixtures containing slag cement and fly ash for use in transportation structures," Construction and Building Materials, 22, 1990-2000, 2008. [3].Shannag, M.J., "High Strength Concrete Containing Natural Pozzolan and Silica Fume," Cement and Concrete Composites, 22, 399-406, 2000. [4].Khatib. J.M., Hibbert. J.J., "Selected engineering properties of concrete incorporating slag and metakaolin," Construction and Building Materials, 19, 460-472, 2005. [5].Penpolcharoen. M., "Utilization of secondary lead slag as construction material," Cement and Concrete Research, 35, 1050-1055, 2005. [6].Roy, D.M., Arjunan, P., Silsbee, M.R., "Effect of silica fume, metakaolin, and low-calcium fly ash on chemical resistance of concrete," Cement and Concrete Research, 31, 2005, 1809-1813. [7].Mazloom. M., Ramezanianpour. A.A., Brooks. J.J, "Effect of silica fume on mechanical properties

of high-strength concrete," Cement and Concrete Composites, 26, 347-357, 2004. [8].Li. G., Zhao. X., "Properties of concrete incorporating fly ash and ground granulated blast-furnace slag," Cement and Concrete Composites, 25, 293-299, 2003. [9].Memon, N.A., Sumadi, A.R., Ramli, M., "Performance of high wokability slag-cement mortar for ferrocement," Building and Environment, 42, 2710-2717, 2007. [10].Yajun, J., Cahyadi, J.H., "Effects of densified silica fume on microstructure and compressive strength of blended cement pastes, Cement and Concrete Research, 33, 1543-1548, 2003. [11].Nair, D.G., Fraaij, A., Klaassen, A.A.k., Kentgens, A.P.M., "A structural investigation relating to the pozzolanic activity of rice husk ash," Cement and Concrete Research, 38, 861-869, 2008. [12].Chung, D.D.L., "Review: Improving cement-based materials by using silica fume," Journal of Materials science, 37, 673-682, 2002. [13].Li, H., Xiao, H.G., Yuan, J., Ou, J., "Microstructure of cement mortar with nano-particles, Composites: Part B," 35, 185-189, 2005. [14].Li, G., "Properties of high-volume fly ash concrete incorporating nano-SiO2," Cement and Concrete Research, 34, 1043-1049, 2004. [15].Shih, J.Y., Chang, T.P., Hsiao, T.C., "Effect of nanosilica on characterization of Portland cement composite," Materials Science and Engineering A, 424, 266-274, 2006. [16].Jo, B.W., Kim, C.H., Tae, G.H., Park, J.B., "Characteristics of cement mortar with nano-SiO2

particles," Construction and Building Materials, 21, 1351-1355, 2007. [17].Li, H., Zhang, M.H., Ou, J.P., "Abrasion resistance of concrete containing nano-particles for pavement," Wear, 260, 1262-1266, 2006. [18].Li, H., Zhang, M.H., Ou, J.P., "Flexural performance containing nano-particles for pavement," International Journal of Fatigue, 29, 1292-1301, 2007. [19].Qing, Y., Zenan, Z., Deyu, K., Rongshen, C., "Influence of nano-SiO2 addition on properties of hardened cement paste as compared with silica fume," Construction and Building Materials, 21, 539-545, 2007. [20].Khaloo, A.R., Hosseini, P., Booshehrian, A., "Effect of nano-SiO2 particles on the mechanical properties of ferrocement mortars," Accepted for technical session on Nanotechnology of Concrete

The Next Big Thing is Small at the ACI Fall

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Convention, November 8-12, 2009, New Orleans, LA; sponsored by ACI Committee 236, Material Science of Concrete, and ACI Subcommittee 236D, Nanotechnology of Concrete 2009.

SiO2

[22].Senff, L., Labrincha, J.A., Ferreira, V.M., Hotza, D., Repette, W.L., "Effect of nano-silica on rheology and fresh properties of cement pastes and mortars," Construction and Building Materials, Article in press, 2009.

[24].Collepardi, S., Borsoi, A., Ogoumah Olagot, J.J., Troli, R., Collepardi, M., Cursio, A.Q., "Influence of nano-sized mineral additions on performance of SCC", In proceeding of the 6th inte-

rnational congress, global construction, ultim -ate concrete opportunities, Dundee, UK, 5-7 July, 2005. [25].Li, Z., Wang, H., He, S., Lu, Y., Wang, M., "Investigation on the preparation and mechanical properties of the nano-alumina reinforced cement composite," Materials Letters, 60, 356-359, 2006. [26].Ji, T., "Preliminary study on the water permeability and microstructure of concrete incorporating nano-SiO2," Cement and Concrete Research, 35, 1943-1947, 2005.

[28].Waddell. J.J. and Dobrowolski. J.A, Concrete Construction Handbook, 3rd Edition. MaGraw-Hill, 2002. [29].Mehta, P.K., Monteiro, P.J.M., Microstructu -re, properties and materials, 3rd edition, McGraw-Hill, p. 659, 2006 . [30].Ye, Q., "Study and Development of Nano-Composite Cement-Based Material," Gypsum and Cement for Building, 11, 4-6, 2001.