IJE TRANSACTIONS B: Applications Vol. 32, No. 5 (May 2019) 679-684   

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P. Narasimha Reddy and J. Ahmed Naqash
( Received: February 23, 2019 – Accepted in Revised Form: May 02, 2019 )

Abstract    The performances of cementitious materials as well as the efficiency of construction are adversely affected at high temperatures. Previous studies have already demonstrated that ultra-fine (alccofine) material accelerates the hydration of cement particles and subsequently improves the mechanical and durability properties of the concrete at normal temperature. Moreover, at higher temperatures the performance of the concrete with the addition of alccofine is still unknown. This paper presents the effect of analytical properties of concrete with alccofine (25%) as a replacement of cement for various W/B ratios (i.e. 0.38, 0.4 and 0.45). The effect of addition of alccofine dosage on the thermogravimetric analysis was carried out in which not only mass loss and decomposition of hydration products from concrete with respect to temperature was found but also bound water (%) and calcium hydroxide (%) present in the concrete were determined. From X-ray diffraction it was observed that alccofine improved the formation of calcium silicate hydrate and calcium silicate aluminum hydrate in concrete and scanning electron microscope (SEM) analysis showed the formation of ettringite needles and calcium silicate hydrate in voids which made concrete denser. Therefore, it was concluded from this study that alccofine can be used as a viable substitute to cement in normal concrete considering its positive effects on property enhancement and an eco-friendly product.


Keywords    Thermogravimetric Analysis; X-ray diffraction; Scanning Electron Microscope



عملکرد مواد سیمان و همچنین بهره وری ساخت و ساز در دمای بالا تحت تاثیر قرار می گیرند. مطالعات قبلی قبلا نشان داده است که مواد فوق سنگین (آلکوفین) باعث سرعت بخشیدن به هیدراتاسیون ذرات سیمان و سپس بهبود خواص مکانیکی و دوام بتن در دمای طبیعی می شوند. علاوه بر این، در دماهای بالاتر عملکرد بتن با اضافه کردن آلکوفین هنوز ناشناخته است. این مقاله تاثیر خواص تحلیلی بتن را با آلکوفین (25٪) به عنوان جایگزینی سیمان برای نسبت های مختلف W / B (یعنی 0.38، 0.4 و 0.45) ارائه می دهد. اثر افزودن آلکوفین دوز بر روی تجزیه و تحلیل گرماسنجی انجام گردیده که در آن نه تنها از دست دادن و تجزیه محصولات هیدراتاسیون از بتن با توجه به درجه حرارت یافت شد، بلکه همچنین آب متصل (٪) و هیدروکسید کلسیم (٪) موجود در بتن تعیین گردید. از پراش اشعه ایکس مشاهده شد که آلکوفین تشکیل هیدرات کلسیم سیلیکات هیدرات و هیدرات آلومینیوم سیلیکات کلسیم را در بتن و تجزیه و تحلیل میکروسکوپ الکترونی اسکن (SEM) نشان داد که تشکیل هیدراتهای اترینگیت و هیدرات سیلیکات کلسیم در حفره هایی که بتن را تسریع می کنند. بنابراین، از این مطالعه نتیجه گرفته شده است که آلکوفین را می توان به عنوان یک جایگزین مناسب برای سیمان در بتن معمولی با توجه به اثرات مثبت آن در بهبود ارتقاء سیمان و یک محصول سازگار با محیط زیست مورد استفاده قرار مي گيرد.


1. Kumar SR, Amiya K. Samanta DKSR. An experimental study on the compressive strength of alccofine with silica fume based concrete. Applied Mechanics and Materials. Vol.  857, (2017), 36-40. 
2. Jindal BB, Jindal BB, Singhal D, Sharma SK, Parveen. Suitability of Ambient-Cured Alccofine added Low-Calcium Fly Ash-based Geopolymer Concrete. Indian Journal of Science and Technology, Vol. 10, No. 12, (2017):1-10. doi:10.17485/ijst/2017/v10i12/110428
3. Saxena SK, Kumar M, Singh NB. Effect of Alccofine powder on the properties of Pond fly ash based Geopolymer mortar under different conditions. Environmental Technology and Innovation, Vol. 9, (2018):232-242. 
4. Pawar, M. S., and A. C. Saoji. "Effect of Alccofine on self compacting concrete." International Journal of Engineering and Science, Vol. 2, No. 6 (2013): 05-09.
5. Suthar S, Shah SBK, Patel PPJ. Study on effect of Alccofine & Fly ash addition on the Mechanical properties of High performance Concrete, International Journal for Scientific Research & Development, Vol. 1, no. 3 (2013): 464-467.
6. Sharma, S.K., Kumarb, P. and Roya, A.K., "Comparison of permeability and drying shrinkage of self compacting concrete admixed with wollastonite micro fiber and flyash", International Journal of Engineering, Transactions B: Applications,   Vol. 30, No. 11, (2017), 1681-1690.
7. Bouzoubaa, N., Zhang, M. and Malhotra, V., "Mechanical properties and durability of concrete made with high-volume fly ash blended cements using a coarse fly ash", Cement and Concrete Research,  Vol. 31, No. 10, (2001), 1393-1402.
8. Zhang, D., Zhang, Y., Cheng, T. and Yuan, J., "New analytic method for subgrade settlement calculation of the new cement fly-ash grave pile-slab structure", International Journal of Engineering-Transactions A: Basics,  Vol. 29, No. 10, (2016), 1364-1371.
9. Palou, M.T., Kuzielová, E., Novotný, R., Šoukal, F. and Žemlička, M., "Blended cements consisting of portland cement– slag–silica fume–metakaolin system", Journal of Thermal Analysis and Calorimetry,  Vol. 125, No. 3, (2016), 1025-1034.
10. Mostari, M.S., Zaman, T., Sen, A. and Al Hassan, M.R., "Synthesis and characterization of porcelain body developed from rice husk ash", International Journal of EngineeringTransactions A: Basics,  Vol. 31, No. 1, (2017), 25-31.
11. Rath, B., Deo, S. and Ramtekkar, G., "Durable glass fiber reinforced concrete with supplimentary cementitious materials", International Journal of Engineering-Transactions A: Basics,  Vol. 30, No. 7, (2017), 964-971.
12. Bode Venkata Kavyateja, J. Guru Jawahar and C. Sashidhar, “Investigation on Ternary Blended Self Compacting Concrete using fly ash and Alccofine”, International Journal of Recent Technology and Engineering, Vol. 7, No. 6S, (2019), 447-451.
13. P. Narasimha Reddy and J. Ahmed Naqash, “Durability and Mechanical Properties of Concrete Modified with Ultra-Fine Slag”, International Journal of Innovative Technology and Exploring Engineering, Vol. 8, No. 5, (2019), 875–881.
14. R. Ramachandra, and S. Mandal. "Prediction of Compressive Strength of High-Volume Fly Ash Concrete Using Artificial Neural Network." In Sustainable Construction and Building Materials, Springer, Singapore, (2019), 471-483.
15. Chopra, D. and Siddique, R., Strength, permeability and microstructure of self-compacting concrete containing rice husk ash, Biosystems Engineering, Vol. 130, (2015) 72-80.
16. Rathore, Rituraj S., and Arpit Chawda. "Partial Replacement of OPC by Silica Fume with M60 Grade Concrete." Journal of Civil Engineering and Environmental Technology, Vol. 3, No. 8; (2016) 684-689.
17. Gayathri, K., K. Ravichandran, and J. Saravanan. "Durability and cementing efficiency of Alccofine in concretes." International Journal of Engineering Research & Technology, Vol. 5, No. 5 (2016): 460-467.
18. BIS. 8112, Indian Standard 43 Grade Ordinary Portland Cement—Specification, Bureau of Indian Standards. 1989.
19. Alessandra Etuko Feuzicana de Souza Almeida, Eduvaldo Paulo Sichieri, “Thermogravimetric Analyses and Mineralogical Study of  Polymer Modified Mortar with Silica Fume”, Materials Research, Vol. 9, No. 3, (2006) 321-326, 
20. Tao Long, Qingyuan Wang, Zhongwei Guan, Yu Chen, and Xiaoshuang Shi, “Deterioration and Microstructural Evolution of the Fly Ash Geopolymer Concrete against MgSO4 Solution”, Advances in Materials Science and Engineering, 2017. doi.org/10.1155/2017/424721
21. Neven Ukrainczyk, Marko Ukrainczyk, Juraj Sipusic, Tomislav Matusinovic, “Xrd And Tga Investigation of Hardened Cement Paste Degradation”, Conference on Materials, Processes, Friction and Wear MATRIB’06, Vela Luka, (2006). 
22. Qi Zhang and Guang Ye, “Microstructure Analysis of Heated Portland Cement Paste”, Procedia Engineering, Vol. 14 (2011) 830–836.
23. Nuruddeen Muhammad Musa, “Thermal Analysis of Cement Paste Partially Replaced With Neem Seed Husk Ash”, International Journal of Scientific & Engineering Research, Vol. 5, No. 1, (2014): 1101-1105.
24. Alma Delia Rodríguez Martínez, Martha Lilia Domínguez Patiño,  Rosa María Melgoza Alemán, Gerardo Antonio Rosas Trejo, “Characterization by Thermogravimetric Analysis of Polymeric Concrete with High Density Polyethylene Mechanically Recycled”, Journal of Minerals and Materials Characterization and Engineering, Vol. 2, (2014): 259-263. 

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