New Approaches in Civil Engineering

New Approaches in Civil Engineering

The effect of nano silica and glass powder on the physical characteristics of concrete

Document Type : Research Paper

Authors
1 Assistant Professor of Civil Engineering. Shams University. Gonbad Kavous, Iran
2 Master of Civil Engineering Department, Shams Gonbad Higher Education Institute, Gonbadkavos, Iran
Abstract
In this research, nano silica and glass powder have been used to improve the compressive strength and other physical characteristics of concrete. In order to increase the density of the concrete after gaining strength, it is combined with nano silica and glass powder with percentages of 5, 10, 15 and 20, as well as glass powder with the same percentages. The next samples were also prepared by combining nano-silica with glass powder instead of silica. In this research, a total of 324 concrete cube samples of 5 cm diameter have been prepared and compressive strength, carbonation, melting and freezing tests have been performed on them and the results have been extracted. According to the results of the Sn4 sample in the experiments, the best and the Sng4 sample obtained the weakest combination
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1-Air Permeability Versus Sorptivity: Effects of Field Curing on Cover Concrete After One Year Old Field Exposure, Magazine of Concrete Research, 52: 17-24.
2-Barker D., Turner S., Napier-Moore P., Clark M. and Davison J. (2009). CO2 capture in the cement industry, Energy Procedia, 1: 87–94.
3-Bayasi, Z., and Zhou, J. (1993). Properties af Silica Fume Concrete and Mortar, American Concrete Institute Materials Journal, 90: 349-356.
4-Belkowitz J., and Armentrout D.L. (2009). The investigation of nano-silica in the cement hydration process.
5-Alasali M.M. and Malhotra V.M. (1991). Role of concrete incorporating high volumes of fly ash in controlling expansion due to alkali-aggregate reaction.
6-American Concrete Institute Material 88: 63 - 159. Aldea, C.M., Young, F., Wang, K. and Shah, S.P. (2000).
7-Effects of curing conditions on properties of concrete using slag replacement, Cement and Concrete Research, 30: 465-472.
8-Anonim, (2007). USGBC, LEED rating system, version 3.0, US Green Building Council, Washington. ASTM C 618, (2000).
9-Standard Specification for Coal Fly Ashand Rawor Calcined Natural Pozzolan for Use as a Mineral Admixture in Concrete, Annual Book of ASTM Standard, No. 04.02.
10-American Concrete Institute Special Publication, 267: 87-100. Bentur, A., Bonen, D. and Goldman, A. (1993).
11-Discussion of a Paper by Chong, X.. at all. Roll of Silica Fume in Compressive Strength of Cement Paste, Mortar and Concrete.
12-American Concrete Institute Material Journal, 376. Bicer A. (2018). Effect of fly ash particle size on thermal and mechanical properties of fly ash-cement composites, Thermal Science and Engineering Progress, 8: 78–82.
13-American Concrete Institute Committee, (1995). Ground Granulated Blast-Furnace Slag as a Cementitious Constituent in Concrete, American Concrete Institute, Detroit, USA, ACI 95 – 233.
14-American Concrete Institute Committe 226, (1987). Silica Fume in Concrete, American Concrete Institute Material Journal, 84: 158-166.
15-Ahmaruzzaman, M., (2010). A Review on the Utilization of Fly Ash, Progress in Energy and Combustion Science 36: 327–363.