FT-IR and 29Si-NMR for evaluating aluminium-silicate precursors geopolymers
conference paper
Geopolymers are systems of inorganic binders formed by arkari activation of an aluminium-silicate precursor. These precursor often derived from a secondary resource like fly ash or slag. If geopolymers are used for cementless concrete with reproducible quality, eventually a screening tool for quality control will be needed, which links (variable) secondary resource characteristics to the performance of geoporymers. This paper shows the potentiar of using FTIR and solid state "si-NMR for a (semi) quantitaiive evaluation of secondary resources suitabre for geoporymers. More specificaily, the aim is to investigate whether the presence of particuiar aluminiumsilicates as measured by FTIR and NMR, influences the early (14 day) strength of a simple geopolymer system.
TNO Identifier
820457
Source title
1st International Conference on the Chemistry of Construction Materials, October 7-9, 2013 Berlin
Pages
485-488
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