DOI QR코드

DOI QR Code

The effects of replacement fly ash with diatomite in geopolymer mortar

  • Sinsiri, Theerawat (School of Civil Engineering, Institute of Engineering, Suranaree University of Technology) ;
  • Phoo-ngernkham, Tanakorn (School of Civil Engineering, Institute of Engineering, Suranaree University of Technology) ;
  • Sata, Vanchai (Sustainable Infrastructure Research and Development Center, Dept. of Civil Engineering, Faculty of Engineering, Khon Kaen University) ;
  • Chindaprasirt, Prinya (Sustainable Infrastructure Research and Development Center, Dept. of Civil Engineering, Faculty of Engineering, Khon Kaen University)
  • 투고 : 2011.04.07
  • 심사 : 2011.08.22
  • 발행 : 2012.06.25

초록

This article presents the effect of replacement fly ash (FA) with diatomite (DE) on the properties of geopolymer mortars. DE was used to partially replace FA at the levels of 0, 60, 80 and 100% by weight of binder. Sodium silicate ($Na_2SiO_3$) and sodium hydroxide (NaOH) solutions were used as the liquid portion in the mixture in order to activate the geopolymerization. The NaOH concentrations of 15M, $Na_2SiO_3$/NaOH ratios of 1.5 by weight, and the alkaline liquid/binder (LB) ratios by weight of 0.40, 0.50, 0.60 and 0.70 were used. The curing at temperature of $75^{\circ}C$ for 24 h was used to accelerate the geopolymerization. The flows of all fresh geopolymer mortars were tested. The compressive strengths and the stress-strain characteristics of the mortar at the age of 7 days, and the unit weights were also tested. The results revealed that the use of DE to replace part of FA as source material in making geopolymer mortars resulted in the increased in the workability, and strain capacity of mortar specimens and in the reductions in the unit weights and compressive strengths. The strain capacity of the mortar increased from 0.0028 to 0.0150 with the increase in the DE replacement levels from 0 to 100%. The mixes with 15M NaOH, $Na_2SiO_3$/NaOH of 1.5, LB ratio of 0.50, and using $75^{\circ}C$ curing temperature showed 7 days compressive strengths 22.0-81.0 MPa which are in the range of normal to high strength mortars.

키워드

참고문헌

  1. ACI 318 (2000), Building code requirement for structure concrete practice, ACI 318M-95. American Concrete Institute Part 3.
  2. ASTM C 109 (2003), Standard test method for compressive strength of hydraulic cement mortar, ASTM C 109/ C 109M-2, Annual Book of ASTM Standard.
  3. ASTM C 150 (2003), Standard specification for portland, ASTM C 150-02a, Annual Book of ASTM Standard.
  4. ASTM C 469 (2003), Standard test method for static modulus of elasticity and poisson's ratio of concrete in compression, ASTM C 469-02, Annual Book of ASTM Standard.
  5. ASTM C 1437 (2003), Standard test method for flow of hydraulic cement mortar, ASTM C 1437-01, Annual Book of ASTM Standard.
  6. Antonides, L.E. (1999), Diatomite: U.S. Geological Survey Mineral commodity summaries 1, 60-61.
  7. Barbosa, V.F.F., MacKenzie, K.J.D. and Thaumaturgo, C. (1999), "Synthesis and characterization of sodium polysialate inorganic polymer based on alumina and silica", Davidovits J, Davidovits R, James C. (Eds.), Proceeding of the Second International Conference on Geopolymer-GEOPOLYMER'99, France.
  8. Chindaprasirt, P., Chareerat, T. and Sirivivananon, V. (2007), "Workability and strength of coarse high calcium fly ash geopolymer", Cement Concrete Comp., 29(3), 224-229. https://doi.org/10.1016/j.cemconcomp.2006.11.002
  9. Davidovits, J. (1991), "Geopolymer: inorganic polymeric new materials", J. Therm. Anal., 37(8), 1633-1656. https://doi.org/10.1007/BF01912193
  10. Duxson, P., Provis, J.L., Lukey, G.C., Mallicoat, S.W., Kriven, W.M. and Van Deventer, J.S.J. (2005), "Understanding the relationship between geopolymer composition, microstructure and mechanical properties", Colloid. Surface. A., 269(1-3), 47-58. https://doi.org/10.1016/j.colsurfa.2005.06.060
  11. Elden, H., Morsy, G. and Bakr, M. (2010), "Diatomite: it characterization, modifications and applications", Asian J. Mater. Sci., 2(3), 121-136. https://doi.org/10.3923/ajmskr.2010.121.136
  12. Hardjito, D., Cheak, C.C. and Ing, C.H.L. (2008), "Strength and setting time of low calcium fly ash-based geopolymer mortar", Mod. Appl. Sci., 2(4), 3-11.
  13. Hardjito, H. and Rangan, R.V. (2005), Development and properties of low-calcium fly ash based geopolymer concrete, Research report GC1. Perth, Australia: Faculty of Engineering, Curtin University of Technology.
  14. Jumrat, S., Chatveera, B. and Rattanadecho, P. (2011), "Dielectric properties and temperature profile of fly ashbased geopolymer mortar", Int. Commun. Heat Mass, 38(2), 242-248. https://doi.org/10.1016/j.icheatmasstransfer.2010.11.020
  15. Nazari, A., Bagheri, A. and Riahi, S. (2011), "Properties of geopolymer with seeded fly ash and rice husk bark ash", Mater. Sci. Eng. A., 528(24), 7395-7401. https://doi.org/10.1016/j.msea.2011.06.027
  16. Owen, R.B. and Utha-aroon, C. (1999), "Diatomaceous sedimentation in the tertiary lampang basin, northern Thailand", J. Paleolimnol., 22(1), 81-95. https://doi.org/10.1023/A:1008033813344
  17. Pacheco-Torgal, F., Castro-Gomes, J. and Jalali, S. (2008), "Properties of tungsten mine waste geopolymeric binder", Constr. Build. Mater., 22(6), 1201-1211. https://doi.org/10.1016/j.conbuildmat.2007.01.022
  18. Palomo, A., Grutzeck, M.W. and Blanco, M.T. (1999), "Alkali-activated fly ashes: A cement for the future", Cement Concrete Res., 29(8), 1329-1329.
  19. Pimraksa, K. and Chindaprasirt, P. (2009), "Lightweight bricks made of diatomaceous earth, lime, and gypsum", Ceram. Int., 35(1), 471-478. https://doi.org/10.1016/j.ceramint.2008.01.013
  20. Rukzon, S. and Chindaprasirt, P. (2008), "Mathematical model of strength and porosity of ternary blend Portland rice husk ash and fly ash cement mortar", Comput. Concrete, 5(1), 75-88. https://doi.org/10.12989/cac.2008.5.1.075
  21. Sathonsaowaphak, A., Chindaprasirt, P. and Pimraksa, K. (2009), "Workability and strength of lignite bottom ash geopolymer mortar", J. Hazard Mater., 168(1), 44-50. https://doi.org/10.1016/j.jhazmat.2009.01.120
  22. Sierra, E.J., Miller, S.A., Sakulich, A.R., MacKenzie, K. and Barsoum, M.W. (2010), "Pozzolanic activity of diatomaceous earth", J. Am. Ceram. Soc., 93(10), 3406-3410. https://doi.org/10.1111/j.1551-2916.2010.03886.x
  23. Torres, M.L. and Garcia-Ruiz, P.A. (2009), "Lightweight pozzolanic materials used in mortars: Evaluation of their influence on density, mechanical strength and water absorption", Cement Concrete Comp., 31(2), 114- 119. https://doi.org/10.1016/j.cemconcomp.2008.11.003
  24. Wong, J., Kiattikomol, K., Jaturapitakkul, C. and Chindaprasirt, P. (2010), "Compressive strength, modulus of elasticity, and water permeability of inorganic polymer concrete", Mater. Design., 31(10), 4748-4754. https://doi.org/10.1016/j.matdes.2010.05.012
  25. Yeh, I.C. (2008), "Modeling slump of concrete with fly ash and superplasticizer", Comput. Concrete, 5(6), 559- 572. https://doi.org/10.12989/cac.2008.5.6.559
  26. Yilmaz, B. and Ediz, N. (2008), "The use of raw and calcined diatomite in cement production", Cement Concrete Comp., 30(3), 202-211. https://doi.org/10.1016/j.cemconcomp.2007.08.003
  27. Zuhua, Z., Xiao, Y., Huajun, Z. and Yue, C. (2009), "Role of water in the synthesis of calcined kaolin-based geopolymer", Appl. Clay Sci., 43(2), 218-223. https://doi.org/10.1016/j.clay.2008.09.003

피인용 문헌

  1. The effect of adding nano-SiO2 and nano-Al2O3 on properties of high calcium fly ash geopolymer cured at ambient temperature vol.55, 2014, https://doi.org/10.1016/j.matdes.2013.09.049
  2. Fully reacted high strength geopolymer made with diatomite as a fumed silica alternative vol.43, pp.17, 2017, https://doi.org/10.1016/j.ceramint.2017.07.222
  3. The Study on Physical and Thermal Properties of Geopolymer Pastes vol.751, 2017, https://doi.org/10.4028/www.scientific.net/KEM.751.538
  4. A Mix Design Procedure for Alkali-Activated High-Calcium Fly Ash Concrete Cured at Ambient Temperature vol.2018, pp.1687-8442, 2018, https://doi.org/10.1155/2018/2460403
  5. Enhancing the engineering properties and microstructure of room temperature cured alkali activated natural pozzolan based concrete utilizing nanosilica vol.189, pp.None, 2012, https://doi.org/10.1016/j.conbuildmat.2018.08.166
  6. The Effects of Replacement Metakaolin with Diatomite in Geopolymer Materials vol.798, pp.None, 2019, https://doi.org/10.4028/www.scientific.net/kem.798.267
  7. Geopolymer Synthesis Using Metakaolin and High Calcium Fly Ash as Binary System Geopolymer vol.1007, pp.None, 2012, https://doi.org/10.4028/www.scientific.net/msf.1007.65
  8. Properties of pumice-fly ash based geopolymer paste vol.316, pp.None, 2022, https://doi.org/10.1016/j.conbuildmat.2021.125665