Investigation of Cement, Mineral and Chemical Additive Interactions in Micro Scales
Abstract
Self-compacting concretes (SCC), a new type of concrete, were realized with the development of polycarboxylate-based chemical additives. The interaction of these additives with the powder materials in the nano and micro scales affects the fresh and hardened properties of concrete in meso and macro scales. To change and improve the macro-dimensional properties of concrete, it is necessary to better analyze the nano-micro-dimensional interaction. The aim of this study is to examine the interactions of cement, mineral and chemical additives in micro scale. For this purpose, the zeta potential values of the mixtures consisting of cement, water, calcite and blast furnace slag prepared by using a polycarboxylate based plasticizer additive were analyzed. In addition, SEM analyzes of hardened samples were made on the 28th days.
Keywords
Zeta potential, Polycarboxylate-based chemical additive, SEM image
References
- [1] O.R. Khaleel, S.A. Al-Mishhadani, H.A. Razak, “The effect of coarse aggregate on fresh and hardened properties of self-compacting concrete (SCC),” Procedia Engeering, vol. 14, pp. 805-813, 2011.
- [2] H.A. Mohamed, “Effect of fly ash and silica fume on compressive strength of self-compacting concrete under different curing conditions,” Ain Shams Engineering Journal, vol.2, no.2, pp. 79-86, 2011.
- [3] C. Karakurt, A.O. Çelik, V. Kiriççi, E. Özyaşar, C. Yılmazer, “Kendiliğinden yerleşen beton davranışının hesaplamalı akışkanlar dinamiği ile benzetimi,” Dokuz Eylül Üniversitesi-Mühendislik Fakültesi Fen ve Mühendislik Dergisi, vol. 20, no. 59, pp. 449-460, 2018.
- [4] L. Iures, C. Bob, “The Future Concrete: Self-Compacting Concrete,” Buletinul Institutului Politehnic din lasi. Sectia Constructii, Arhitectura, vol. 56, no. 2, pp. 93, 2010.
- [5] P.W. Zakka, O.F. Job, N.A. Anigbogu, “Ecological selfcompacting concrete using Gum Arabic as a plasticizer,” West Africa Built Environment Research Conference, Ghana, pp. 10, 2015.
- [6] Y. Houst, P. Bowen, A. Siebold, “Some basic aspects of the interaction between cement and superplasticizers,” Innovations and Developments in Concrete Materials and Construction, vol. 12, pp. 225-234, 2002.
- [7] J., Plank, C. Hirsch, “Impact of zeta potential of early cement hydration phases on superplasticizer adsorption,” Cement and concrete research, vol. 37, no. 4, pp. 537-542, 2007.
- [8] D.L. Kantro, “Influence of water-reducing admixtures on properties of cement paste—a miniature slump test,” Cement, Concrete and Aggregates, vol. 2, no. 2, pp. 95-102, 1980.
- [9] S. Srinivasan, S.A. Barbhuiya, D. Charan, S.P. Pandey, “Characterising cement–superplasticiser interaction using zeta potential measurements,” Construction and Building Materials, vol. 24, no. 12, pp. 2517-2521, 2010.
- [10] ASTM C230 / C230M-14, “Standard Specification for Flow Table for Use in Tests of Hydraulic Cement,” ASTM International, West Conshohocken, PA, 2014.