NONCONVENTIONAL PROCEDURE OF MORE INTENSE VALORIZATION OF ALUMINA-SILICATE WASTE FOR PREPARING NEW GEOPOLYMERIC MATERIALS SUITABLE IN CONSTRUCTION
Keywords:
alumina-silicate, geopolymer, concrete waste, alkaline activator, compression resistance, earl age
Abstract
A new and original dosing of alumina-silicate wastes in preparing mixture of the geopolymeric material is presented in this paper. Unlike the usual preponderant utilization of fly ash and ground blast furnace slag, the article adopted a major proportion of concrete waste from building demolition compared to the other two mentioned components, aiming at obtaining high strength geopolymers. The result of applying this new dosing in the material mixture activated with alkaline solution was increasing the compression and flexural resistance of the geopolymer, especially at earl age of curing (7 days). The experiment showed that by mixing 310-470 kg·m-3 of concrete waste from demolition, 230-254 kg·m-3 of fly ash, 102-120 kg·m-3 of blast furnace slag, and 4 kg·m-3 of silica fume, the best performing mechanical characteristics of the geopolymer can be obtained. The optimal values of denseness were between 1.64-2.04 g·cm-3 and those of heat conductance were between 0.218-0.306 W·m-1·K-1.
References
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19. Paunescu, L., Axinte, S.M., Fiti, A., Expanding residual clear flat glass with coal powder in oxidant atmosphere of the oven using water glass solution, Nonconventional Technologies Review, Vol. 27, No. 4, pp. 4-11, (2023).
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23. Paunescu, B.V., Volceanov, E., Paunescu, L., Reducing the carbon footprint by making geopolymer materials for cement-free construction based on waste and industrial by-products, Nonconventional Technologies Review, Vol. 28, No. 1, pp. 10-16, (2024).
24. Pacheco-Torgal, F., Tam, V.W.Y., Labrincha, J.A., Ding, Y., de Brito, J., Handbook of recycled concrete and demolition waste, Woodhead Publishing Series in Civil and Structural Engineering, Oxford, Cambridge (UK), No. 47, (2013).
2. Gomes, K.C., Carvalho, M., Diniz, D.D.P., Abrantes, R.D.C.C., Branco, M.A., Carvalho Junior, P.R.O.D., Carbon emissions associated with two types of foundations: CP-II Portland cement-based composite vs. geopolymer concrete, Matéria, Vol. 24, No. 4, Rio de Janeiro, Brazil, (2019).
3. Payá, J., Monzo, J., Borrachero, M.V., Tashima, M.M., Reuse of aluminosilicate industrial waste materials in the production of alkali-activated concrete binders, in Handbook of Alkali-Activated Cements, Mortars and Concretes, Elsevier, Woodhead Publishing, 1st Edition, Pacheco-Torgal, F., Labrincha, J., (eds.), pp. 487-518, ISBN 9781782422761, (2015).
4. Xu, H., Van Deventer, J.S.J., The geopolymerisation of alumino-silicate minerals, International Journal of Mineral Processing, Elsevier, Vol. 59, No. 3, pp. 247-266, (2000).
5. Xu, H., Van Deventer, J.S.J., The effect of alkali metals on the formation of geopolymeric gels from alkali-feldspars, Colloids and Surfaces A: Physicochemical and Engineering Aspects, Elsevier, Vol. 216, No. 1-3, pp. 27-44, (2003).
6. Haha, M.B., Lothenbach, B., Le Saout, G., Winnefeld, F., Influence of slag chemistry on the hydration of alkali-activated blast-furnace slag-Part I: Effect of MgO, Cement and Concrete Research, Elsevier, Vol. 41, No. 9, pp. 955-963, (2011). https://doi.org/10.1016/j.cemconres.2011.05.002
7. Yusuf, M.O., Megat Johari, M.A., Ahmad, Z.A., Maslehuddin, M., Strength and microstructure of alkali-activated binary blended binder containing palm oil fuel ash and ground blast-furnace slag, Construction and Building Materials, Elsevier, Vol. 52, pp. 504-510, (2014).
8. Lima, V.M.E., Basto, P.A., Henrique, M.A., Almeida, Y.M., de Melo Neto, A.A., Optimizing the concentration of Na2O in alkaline activators to improve mechanical properties and reduce costs and CO2 emissions in alkali-activated mixtures, Construction and Building Materials, Elsevier, Vol. 344, (2022), https://doi.org/10.1016/j.conbuildmat.2022.128185
9. Cai, Y., Liu, X., Mechanical properties test of pavement base or subbase made of solid waste stabilized by acetylene sludge and fly ash, AIP Advances, AIP Publishing, Vol. 10, No. 6, (2020). https://doi,org/10.1016/5.0008571
10. Davidovits, J., Davidovits, M., Davidovits, N., Process for obtaining a geopolymeric alumino-silicate and products thus obtaining, US Patent no. 5342595, August 30, (1994).
11. de Silva, P., Sagoe-Crenstil, K., Sirivivatnanon, V., Kinetics of geopolymerization: Role of Al2O3 and SiO2, Cement and Concrete Research, Elsevier, Vol. 37, No. 4, pp. 512-518, (2007). https://doi.org/10.1016/j.cemconres.2007.01.003
12. Samantasinghar, S., Singh, S., Effects of curing environment on strength and microstructure of alkali-activated fly ash-slag binder, Construction and Building Materials, Elsevier, Vol. 235, (2020). https://doi.org/10.1016/j.conbuildmat.2019.117481
13. Jittin, V., Madhuri, P., Santhanaj, M., Bahurudeen, A., Influence of preconditioning and curing methods on the durability performance of alkali-activated binder composites, Construction and Building Materials, Elsevier, Vol. 311, (2021).
14. Rashad, A.M., A comprehensive overview about the influence of different additives on the properties of alkali-activated slag-A guide for Civil Engineer, Construction and Building Materials, Elsevier, Vol. 47, pp. 29-55, (2013). https://doi.org/10.1016/j.conbuildmat.2013.04.011
15. Duxson, P., Provis, J.L., Lukey, G.C., Mallicoat, S.W., Kriven, W.M., Van Deventer, J.S.J., Understanding the relationship between geopolymer composition, microstructure and mechanical properties. Colloids and Surfaces A: Physicochemical Engineering Aspects, Elsevier, Vol. 269, pp. 47-58, (2005). https://doi.org/10.1016/j.colsurfa.2005.06.060
16. Rangan, B.V., Low-calcium fly ash-based geopolymer concrete, in Concrete Construction Engineering Handbook, Nawy, E.G. (ed.), 2nd Edition, CRC Press, New York, the United States, (2008).
17. Bakharev, T., Geopolymeric materials prepared using Class F fly ash and elevated temperature curing, Cement and Concrete Research, Elsevier, Vol. 35, No. 6, pp. 1221-1232, (2005). https://doi.org/10.1016/j.cemconres.2004.06.031
18. Paunescu, B.V., Paunescu, L., Volceanov, E., Porous fly ash-based geopolymer usable as an unconventional construction material, Journal of Engineering Studies and Research, Vol. 29, No. 3, pp. 57-65, (2023).
19. Paunescu, L., Axinte, S.M., Fiti, A., Expanding residual clear flat glass with coal powder in oxidant atmosphere of the oven using water glass solution, Nonconventional Technologies Review, Vol. 27, No. 4, pp. 4-11, (2023).
20. Paunescu, L., Axinte, S.M., New environmentally friendly and economic heat-insulating material made with NaOH, Academic Journal of Manufacturing Engineering, Vol. 22, No. 1, pp. 76-83, (2024).
21. Paunescu, L., Ioana, A., Volceanov, E., Preserving the mechanical properties of metakaolin-based geopolymer composite exposed to thermal stress by using refractory filler wastes, Bulletin of Polytechnic Institute, Chemistry and Chemical Engineering Section, Vol. 70 (74), No. 1, pp. 1-8, (2024).
22. Paunescu, L., Axinte, S.M., Strength and porous building material prepared from recycled residual glass through microwave radiation, Bulletin of Polytechnic Institute, Chemistry and Chemical Engineering Section, Vol. 70 (74), No. 1, pp. 69-80, (2024).
23. Paunescu, B.V., Volceanov, E., Paunescu, L., Reducing the carbon footprint by making geopolymer materials for cement-free construction based on waste and industrial by-products, Nonconventional Technologies Review, Vol. 28, No. 1, pp. 10-16, (2024).
24. Pacheco-Torgal, F., Tam, V.W.Y., Labrincha, J.A., Ding, Y., de Brito, J., Handbook of recycled concrete and demolition waste, Woodhead Publishing Series in Civil and Structural Engineering, Oxford, Cambridge (UK), No. 47, (2013).
Published
2024-09-30
How to Cite
Paunescu, L., Paunescu, B., & Volceanov, E. (2024). NONCONVENTIONAL PROCEDURE OF MORE INTENSE VALORIZATION OF ALUMINA-SILICATE WASTE FOR PREPARING NEW GEOPOLYMERIC MATERIALS SUITABLE IN CONSTRUCTION. Nonconventional Technologies Review, 28(3). Retrieved from http://revtn.ro/index.php/revtn/article/view/474
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