Performance and Characterization of Geopolymer Concrete Reinforced with Short Steel Fiber

International Conference on Innovative Research - ICIR Euroinvent 2017

Abdullah, M.M.A.B.^1,2 ; Faris, M.A.^1,2 ; Tahir, M.F.M.^2 ; Kadir, A.A.^2,3 ; Sandu, A.V.^2,4 ; Mat Isa, N.A.A.^1 ; Corbu, O.^2,5

Faculty of Engineering Technology, Universiti Malaysia Perlis (UniMAP), Perlis, Malaysia^1

Center of Excellence Geopolymer and Green Technology (CEGeoGTech), School of Materials Engineering, Universiti Malaysia Perlis (UniMAP), Perlis, Malaysia^2

Department of Water and Environmental Engineering, Faculty of Civil and Environmental Engineering, Universiti Tun Hussein Onn Malaysia, Johor, Malaysia^3

Faculty of Materials Science and Engineering, Gheorghe Asachi Technical University of Iasi, Romania^4

Central Laboratory of the Faculty of Civil Engineering, Technical University of Cluj Napoca, Romania^5

关键词: Carbon dioxide emissions;    Chemical composition analysis;    Compressive and flexural strengths;    Construction technologies;    Conventional concrete;    Geopolymer concrete;    Ordinary Portland cement;    Solid-to-liquid ratio;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/209/1/012038/pdf
DOI  :  10.1088/1757-899X/209/1/012038

来源: IOP

【 摘 要 】

In the recent years, geopolymer concrete are reporting as the greener construction technology compared to conventional concrete that made up of ordinary Portland cement. Geopolymer concrete is an innovative construction material that utilized fly ash as one of waste material in coal combustion industry as a replacement for ordinary Portland cement in concrete. The uses of fly ash could reduce the carbon dioxide emission to the atmosphere, redundant of fly ash waste and costs compared to ordinary Portland cement concrete. However, the plain geopolymer concrete suffers from numerous drawbacks such as brittleness and low durability. Thus, in this study the addition of steel fiber is introduced in plain geopolymer concrete to improve its mechanical properties especially in compressive and flexural strength. Characterization of raw materials also determined by using chemical composition analysis. Short type of steel fiber is added to the mix in weight percent of 1 wt%, 3 wt%, 5 wt% and 7 wt% with fixed molarity of sodium hydroxide of 12M and solid to liquid ratio as 2.0. The addition of steel fiber showed the excellent improvement in the mechanical properties of geopolymer concrete that are determined by various methods available in the literature and compared with each other.