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RISCharacterization of Alkali-Activated Nonwood Biomass Ash–Based Geopolymer Concrete
Publisher: American Society of Civil Engineers
Abstract: The combustion ash of a common nonwood biomass (wheat straw) was evaluated for value-added use in production of geopolymer concrete where alkali aluminosilicate hydrates are the primary binder constituents. The wheat straw ...
Quantitative Analysis of Chloride Ion Diffusion in Cementitious Materials Using Al27 NMR Spectroscopy
Publisher: American Society of Civil Engineers
Abstract: Nuclear magnetic resonance (NMR) spectroscopy was employed to evaluate the effects of chloride ion diffusion on the chemical environment of hydrated cement paste and concrete.
Characterization of ASR in Concrete by Si29 MAS NMR Spectroscopy
Publisher: American Society of Civil Engineers
Abstract: MAS NMR spectroscopy was employed for the evaluation of the alkali-silica reaction (ASR) in laboratory and field concrete specimens. A series of NMR data was collected on the individual constituents of cement as well as ...
Characterization of ASR in Concrete by Si29 MAS NMR Spectroscopy
Publisher: American Society of Civil Engineers
Abstract: Si29 MAS NMR spectroscopy was employed for the evaluation of the alkali-silica reaction (ASR) in laboratory and field concrete specimens. A series of NMR data was collected on the individual constituents of cement as well ...