TY  - JOUR
SP  - 102
PB  - Trans Tech Publications Ltd
AV  - none
ID  - scholars4761
EP  - 105
N2  - The current work presents the effect of alkali concentration on fly ash based geopolymer material. In this work geopolymer material was prepared with a fixed Si/Al ratio (1.85: 1) and varied solid to water ratio and NaOH concentration. All samples were tested to establish the role of alkali on the strength. Samples prepared with 8M of NaOH showed the highest compressive strength. In this regards, Fourier transform infrared spectroscopy (FTIR) results support this observation where broad band becomes sharper and shifts towards lower wavenumbers. In XRD the broad hump slightly shifted towards higher values which indicate the formation of new product. These findings show that to obtain required processing time at desired mechanical strength for a specific application of geopolymer, the suitable concentration of alkali must be established. © 2014 Trans Tech Publications, Switzerland.
SN  - 16609336
TI  - Effect of NAOH concentration on the strength of non sodium silicate fly ash geopolymer
KW  - Fly ash; Fourier transform infrared spectroscopy; Geopolymers; Inorganic polymers; Silicates; Silicon compounds
KW  -  Alkali concentrations; Geopolymer; Geopolymer materials; NaOH concentration; Processing time; Setting time; Sodium silicate; Solid-to-water ratio
KW  -  Compressive strength
VL  - 625
JF  - Applied Mechanics and Materials
A1  - Asif, A.
A1  - Man, Z.
A1  - Azizli, K.A.M.
A1  - Nuruddin, M.F.
A1  - Ismail, L.
N1  - cited By 4; Conference of 3rd International Conference on Process Engineering and Advanced Materials, ICPEAM 2014 ; Conference Date: 3 June 2014 Through 5 June 2014; Conference Code:114811
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-84914133363&doi=10.4028%2fwww.scientific.net%2fAMM.625.102&partnerID=40&md5=f707faffb1061d2c14c9106cd5579163
Y1  - 2014///
ER  -