Volume 4, Issue 1 (1-2022)
alkhass 2022, 4(1): 5-14 |
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Esparham A, Mohammadi M. Effect of Alkaline Solutions on Bentonite-Based Eco-Friendly Geopolymer Composite. alkhass 2022; 4 (1) :5-14
URL: http://alkhass.srpub.org/article-4-149-en.html
URL: http://alkhass.srpub.org/article-4-149-en.html
Department of Chemistry, K.N. Toosi University of Technology, Tehran, Iran
Abstract: (452 Views)
Geopolymers, a new class of green cement binders, has recently been promoted as an environmentally friendly alternative to Ordinary Portland Cement (OPC), with the potential to reduce OPC's negative environmental effects, such as carbon footprint and energy consumption. In this experimental work, the effects of several alkaline activator solutions on the compressive, indirect tensile, and flexural strengths, water absorption, and acid resistance of bentonite-based Geopolymer Concrete (GPC) were investigated. A new sort of alkaline activator for GPC was also created. GPC specimens consisting of bentonite were created and cured at 90 degrees Celsius in this case. The results showed that the addition of NaOH to the mixture after 3 minutes of mixing KOH and Na2SiO3 with dry components (1/3 of the total mixing time) increases the compressive, tensile, and flexural strength and we also see that with this new method, water absorption capacity and the amount of weight loss of geopolymer concrete samples are reduced in acidic conditions.
Type of Study: Research |
Subject:
Environmental Chemistry
Received: 2021/12/15 | Revised: 2022/01/10 | Accepted: 2022/01/15 | Published: 2022/01/30
Received: 2021/12/15 | Revised: 2022/01/10 | Accepted: 2022/01/15 | Published: 2022/01/30
References
1. Moradikhou AB, Esparham A, Avanaki MJ. Effect of hybrid fibers on water absorption and mechanical strengths of geopolymer concrete based on blast furnace slag. J Civil Eng Mater App. 2019; 3(4): 195-211.
2. Hosseini MH, Mousavi Kashi A, Emami F, Esparham A. Effect of simple and hybrid polymer fibers on mechanical strengths and high-temperature resistance of metakaolin-based geopolymer concrete. Modar Civil Eng J. 2020; 20(2): 147-61.
3. Behnood A, Golafshani EM. Predicting the compressive strength of silica fume concrete using hybrid artificial neural network with multi-objective grey wolves. J Clean Prod. 2018; 202: 54-64. [DOI:10.1016/j.jclepro.2018.08.065]
4. Nabi Javid M, Esparham A. A review of life cycle assessment (LCA) in quantifying environmental impacts of OPC and PFA concrete products. Civil Project J. 2021; 3(2): 22-31.
5. Esparham A, Moradikhou AB, Mehrdadi N. Introduction to synthesise method of Geopolymer concrete and corresponding properties. J Iran Ceramic Soc. 2020; 4(64): 13-24.
6. Esparham A, Moradikhou AB, Jamshidi Avanaki M. Effect of various alkaline activator solutions on compressive strength of fly ash-based geopolymer concrete. J Civil Eng Mater App. 2020; 4(2): 115-123.
7. Esparham A, Moradikhou AB. Factors influencing compressive strength of fly ash-based geopolymer concrete. Amirkabir J Civil Eng. 2021; 53(3): 21-21.
8. Esparham A, Moradikhou AB. A novel type of alkaline activator for geopolymer concrete based on metakaolin. J Civil Eng Mater App. 2021; 5(2).
9. Esparham A, Hosseni MH, Mousavi Kashi A, Emami F, Moradikhou AB. Impact of replacing kaolinite with slag, fly ash and bentonite on the mechanical strengths of geopolymer concrete based on kaolinite. Build Eng Hous Sci. 2020; 13(24): 9-15.
10. Esparham, A. Investigation of the effects of nano silica particles and zeolite on the mechanical strengths of metakaolin-based geopolymer concrete. Int J Innovat Eng. 2021; 1(4): 82-95.
11. Esparham A, Moradikhou AB. A novel type of alkaline activator for geopolymer concrete based on class C fly ash. Adv Res Civil Eng. 2021; 3(1): 1-13.
12. Etemadi M, Pouraghajan M, Gharavi H. Investigating the effect of rubber powder and nano silica on the durability and strength characteristics of geopolymeric concretes. J Civil Eng Mater App. 2020; 4(4): 243-252.
13. Esparham A. Factors influencing compressive strength of metakaolin-based geopolymer concrete. Modar Civil Eng J. 2020; 20(1): 53-66.
14. Esparham A, Moradikhou AB, Andalib FK, Avanaki MJ. Strength characteristics of granulated ground blast furnace slag-based geopolymer concrete. Adv Concr Construct. 2021; 11(3): 219-229.
15. Mahboubi B, Guo Z, Wu H. Evaluation of durability behavior of geopolymer concrete containing nano-silica and nano-clay additives in acidic media. J Civil Eng Mater App. 2019; 3(3): 163-171.
16. Xu H, Van Deventer JSJ. The geopolymerisation of alumino-silicate minerals. Int J Miner Process. 2000; 59(3): 247-266. [DOI:10.1016/S0301-7516(99)00074-5]
17. Palomo A, Grutzeck MW, Blanco MT. Alkali-activated fly ashes: A cement for the future. Cement Concr Res. 1999; 29(8): 1323-1329. [DOI:10.1016/S0008-8846(98)00243-9]
18. Sharma A, Ahmad J. Experimental study of factors influencing compressive strength of geopolemer concrete. Int Res J Eng Tech. 2017; 4(5): 1306-1313.
19. Parveen, Singhal D. Development of mix design method for geopolymer concrete. Adv Concr Construct. 2017; 5(4): 377-390.
20. Patel YJ, Shah N. Development of self-compacting geopolymer concrete as a sustainable construction material. Sustain Environ Res. 2018; 28(6): 412-421. [DOI:10.1016/j.serj.2018.08.004]
21. Petrus HTBM, Hulu J, Dalton GSP, Malinda E, Prakosa RA. Effect of bentonite addition on geopolymer concrete from geothermal silica. Mater Sci Forum. 2016; 841: 7-15. [DOI:10.4028/www.scientific.net/MSF.841.7]
22. Sanni SH, Khadiranaikar RB. Performance of alkaline solutions on grades of geopolymer concrete. Int J Res Eng Tech. 2013; 2(11): 366-371. [DOI:10.15623/ijret.2013.0213069]
23. Raijiwala DB, Patil HS, Kundan IU. Effect of alkaline activator on the strength and durability of geopolymer concrete. J Eng Res Stud. 2012; 3(1): 18-21.
24. Wang H, Li H, Yan F. Synthesis and mechanical properties of metakaolinite-based geopolymer. Colloid Surface Physicochem Eng Aspect. 2005; 268(1): 1-6.
https://doi.org/10.1016/j.colsurfa.2005.01.016
https://doi.org/10.1016/j.colsurfa.2005.01.033 [DOI:10.1016/0927-7757(95)03490-0]
25. Mishra A, Choudhary D, Jain N, Kumar M, Sharda N, Dutt D. Effect of concentration of alkaline liquid and curing time on strength and water absorption of geopolymer concrete. ARPN J Eng App Sci. 2008; 3(1): 14-18.
26. Morsy M, Alsayed S, Al-Salloum Y, Almusallam T. Effect of sodium silicate to sodium hydroxide ratios on strength and microstructure of fly ash geopolymer binder. Arab J Sci Eng. 2014; 39(6): 4333-4339. [DOI:10.1007/s13369-014-1093-8]
27. ASTM C33 / C33M-18, Standard Specification for Concrete Aggregates, ASTM International, West Conshohocken, PA, 2018.
28. ASTM C127-15, Standard Test Method for Relative Density (Specific Gravity) and Absorption of Coarse Aggregate, ASTM International, West Conshohocken, PA, 2015.
29. ASTM C128-15, Standard Test Method for Relative Density (Specific Gravity) and Absorption of Fine Aggregate, ASTM International, West Conshohocken, PA, 2015.
30. ASTM C136 / C136M-14, Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates, ASTM International, West Conshohocken, PA, 2014.
31. ASTM D2419-14, Standard Test Method for Sand Equivalent Value of Soils and Fine Aggregate, ASTM International, West Conshohocken, PA, 2014.
32. British Standards Institution. Testing Concrete: Method for Determination of the Compressive Strength of Concrete Cubes, BS1881: Part116: 1983, London.
33. ASTM C496 / C496M-17, Standard Test Method for Splitting Tensile Strength of Cylindrical Concrete Specimens, ASTM International, West Conshohocken, PA, 2017.
34. ASTM C293 / C293M-16, Standard Test Method for Flexural Strength of Concrete (Using Simple Beam With Center-Point Loading), ASTM International, West Conshohocken, PA, 2016.
35. ASTM C642-13, Standard Test Method for Density, Absorption, and Voids in Hardened Concrete, ASTM International, West Conshohocken, PA, 2013.
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