IJSTR

International Journal of Scientific & Technology Research

Home About Us Scope Editorial Board Blog/Latest News Contact Us
0.2
2019CiteScore
 
10th percentile
Powered by  Scopus
Scopus coverage:
Nov 2018 to May 2020

CALL FOR PAPERS
AUTHORS
DOWNLOADS
CONTACT

IJSTR >> Volume 9 - Issue 5, May 2020 Edition



International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616



Evaluation Of Using Cement In Alkali-Activated Slag Concrete

[Full Text]

 

AUTHOR(S)

Ismail Amer, M. Kohail, M.S. El-Feky, Ahmed Rashad, Mohamed A. Khalaf

 

KEYWORDS

Alkali Activated Concrete, GGBFS, OPC, Ambient Cured, Solution Modulus, Taguchi Method, Compressive Strength.

 

ABSTRACT

This paper presents an evaluation of utilizing cement (OPC) as a partially replacement from slag (GGBFS) in Alkali Activated Slag Concrete (AASC) mixes cured in ambient conditions. The evaluation of mixes was performed based on workability and compressive strength using Taguchi method. The aluminosilicate source was a mix of GGBFS and OPC, while the alkaline activator was made with a mix of Sodium Hydroxide (SH) and Sodium Silicate (SS). The four parameters considered in this study are: GGBFS:OPC ratio, Na2O ratio, solution modulus (Ms) and water to binder ratio (W/B). Nine mixes were conducted using L9 Taguchi array. Slump test and compression test were carried out on all mixes. The results were evaluated by determining Signal-to-Noise (S/N) ratio using Minitab program and making ANOVA analysis using Qualitek-4 program to investigate the optimum level for each parameter. It was found that using alkali activator with a combination of GGBFS and OPC is not effective method to produce AAC because of the very low workability obtained. On the other hand, using slag only as a binder was effective to produce AAC with high compressive strength and desirable workability.

 

REFERENCES

[1]. A. Nazari and J. G. Sanjayan, Handbook of low carbon concrete. Butterworth-Heinemann, 2016.
[2]. J. G. J. Olivier, G. Janssens-Maenhout, M. Muntean, and J. Peters, “Trends in global CO2 emissions: 2013/2014/2015 Report: PBL Netherlands Environmental Assessment Agency and European Commission Joint Research Centre,” The Hague and Ispra, Italy, 2015.
[3]. M. B. Ali, R. Saidur, and M. S. Hossain, “A review on emission analysis in cement industries,” Renew. Sustain. Energy Rev., vol. 15, no. 5, pp. 2252–2261, 2011.
[4]. K.-H. Yang, J.-K. Song, K.-S. Lee, and A. F. Ashour, “Flow and Compressive Strength of Alkali-Activated Mortars.,” 2009.
[5]. S. A. Bernal, R. M. de Gutiérrez, and J. L. Provis, “Engineering and durability properties of concretes based on alkali-activated granulated blast furnace slag/metakaolin blends,” Constr. Build. Mater., vol. 33, pp. 99–108, 2012.
[6]. A. Wardhono, D. W. Law, and T. C. K. Molyneaux, “Long term performance of alkali activated slag concrete,” J. Adv. Concr. Technol., vol. 13, no. 3, pp. 187–192, 2015.
[7]. A. M. Aly, M. S. El-Feky, M. Kohail, and E.-S. A. R. Nasr, “Performance of geopolymer concrete containing recycled rubber,” Constr. Build. Mater., vol. 207, pp. 136–144, 2019.
[8]. N. Hamed, M. S. El-Feky, M. Kohail, and E.-S. A. R. Nasr, “Effect of nano-clay de-agglomeration on mechanical properties of concrete,” Constr. Build. Mater., vol. 205, pp. 245–256, 2019.
[9]. A. M. El-Tair, M. S. El-Feky, K. G. Sharobim, H. Mohammedin, and M. Kohail, “Improving The Reactivity Of Clay Nano-Partciles In High Strength Mortars Through Indirect Sonication Method.”
[10]. M. S. El-Feky, M. Kohail, A. M. El-Tair, and M. I. Serag, “Effect of microwave curing as compared with conventional regimes on the performance of alkali activated slag pastes,” Constr. Build. Mater., vol. 233, p. 117268, 2020.
[11]. M. A. Wahab, I. A. Latif, M. Kohail, and A. Almasry, “The use of Wollastonite to enhance the mechanical properties of mortar mixes,” Constr. Build. Mater., vol. 152, pp. 304–309, 2017.
[12]. S. A. Barbhuiya, J. K. Gbagbo, M. I. Russell, and P. A. M. Basheer, “Properties of fly ash concrete modified with hydrated lime and silica fume,” Constr. Build. Mater., vol. 23, no. 10, pp. 3233–3239, 2009.
[13]. P. Nath and P. K. Sarker, “Effect of GGBFS on setting, workability and early strength properties of fly ash geopolymer concrete cured in ambient condition,” Constr. Build. Mater., vol. 66, pp. 163–171, 2014.
[14]. I. García-Lodeiro, O. Maltseva, Á. Palomo, and A. Fernández-Jiménez, “CIMENTURI HIBRIDE ALCALINE. PARTEA I: FUNDAMENTE*/HYBRID ALKALINE CEMENTS. PART I: FUNDAMENTALS,” Rev. Rom. Mater., vol. 42, no. 4, p. 330, 2012.
[15]. D. E. Angulo-Ramírez, R. M. de Gutiérrez, and F. Puertas, “Alkali-activated Portland blast-furnace slag cement: Mechanical properties and hydration,” Constr. Build. Mater., vol. 140, pp. 119–128, 2017.
[16]. B. En, “197-1, Cement-Part 1: Composition, specifications and conformity criteria for common cements,” Br. Stand. Inst., 2000.
[17]. B. S. E. N. 12390-3, “Testing hardened concrete; part 3: Compressive strength of test specimens,” 2009.
[18]. ASTM C143/C143M, “Standard Test Method for Slump of Hydraulic-Cement Concrete,” Astm C143, no. 1, pp. 1–4, 2015.