The Process, Characterization and Mechanical properties of fly ash-based Solid form geopolymer via mechanical activation

South African Journal of Chemical Engineering

卷:38

Manish Mudgal¹  Ramesh Kumar Chouhan²  Shailesh Kushwah³ 

[1] Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India;

[2] Corresponding author at: Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, U.P., 201002, India.;

[3] Council of Scientific and Industrial Research– Advanced Materials and Processes Research Institute (AMPRI), Bhopal-462026, India;

关键词: Ball-milling;    Solid form geopolymer;    Flexural strength;    Splitting tensile strength;   

DOI  :  

来源: DOAJ

【 摘 要 】

To address the complexity associated with the conventional geopolymer, we developed solid form geopolymer (SFG), the solid-state reaction between fly ash and dry alkaline activator via ball milling for different hours at different Na2O/SiO2, H2O/Na2O ratios. The Oddity of this approach is that it obviates the direct handling of alkaline activators. Due to ball-milling increase in surface area, amorphization, the solid-state reaction between the materials, homogeneous distribution of all ingredients, and energy store in the form of defects, all changes were observed in SFG precursor. The effect of different Na2O/SiO2, SiO2/Al2O3, and H2O/Na2O molar ratios on geopolymerization gel formation and strength development characteristics of the solid form geopolymer have been reinvestigated. Various characterizing tools such as FTIR, XRD, FE-SEM, and EDAX, have been used to characterize the solid form geopolymer binder and evaluated for compressive, flexural, and split-tensile strength. The solid form geopolymer route facilitates the direct handling of alkaline chemicals and provides a greener sustainable development approach.

【 授权许可】

Unknown