Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Co-existence of aluminosilicate and calcium silicate gel characterized through selective dissolution and FTIR spectral subtraction
Alkali activation of a fly ash and slag mixture supposedly forms a combination of aluminosilicate and calcium silicate hydrate gel as reaction products. Fourier transform infrared spectroscopy (FTIR) is often used to characterize the complex nature of the reaction products. However, interpretation of FTIR results is difficult as the Si–O–T (T = Al, Si) vibrations from the initial ash, geopolymer product, unreacted slag, and calcium silicate hydrate yield an overlapping spectrum. This paper reports how the issue can be resolved by selectively dissolving calcium silicate hydrate and geopolymer product, and subtracting FTIR spectra of the insoluble residue from the original material to determine IR spectrum of the material dissolved.
Co-existence of aluminosilicate and calcium silicate gel characterized through selective dissolution and FTIR spectral subtraction
Alkali activation of a fly ash and slag mixture supposedly forms a combination of aluminosilicate and calcium silicate hydrate gel as reaction products. Fourier transform infrared spectroscopy (FTIR) is often used to characterize the complex nature of the reaction products. However, interpretation of FTIR results is difficult as the Si–O–T (T = Al, Si) vibrations from the initial ash, geopolymer product, unreacted slag, and calcium silicate hydrate yield an overlapping spectrum. This paper reports how the issue can be resolved by selectively dissolving calcium silicate hydrate and geopolymer product, and subtracting FTIR spectra of the insoluble residue from the original material to determine IR spectrum of the material dissolved.
Co-existence of aluminosilicate and calcium silicate gel characterized through selective dissolution and FTIR spectral subtraction
Puligilla, Sravanthi (Autor:in) / Mondal, Paramita (Autor:in)
Cement and Concrete Research ; 70 ; 39-49
2015
11 Seiten, 58 Quellen
Aufsatz (Zeitschrift)
Englisch
| British Library Online Contents | 2015
Dissolution-precipitation behaviour of ettringite, monosulfate, and calcium silicate hydrate
| Online Contents | 2004
Dissolution-precipitation behaviour of ettringite, monosulfate, and calcium silicate hydrate
| British Library Online Contents | 2004