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Microstructure and mechanical properties of fly ash blended cement pastes
Highlights Multiple techniques were used to study microstructure and mechanical properties. Microstructure and mechanical properties were quantitatively studied and linked. Two types of residual fly ash were found through this study. Influences of fly ash on the hydration products were investigated and discussed.
Abstract Regarding the wide use of fly ash in normal and high-strength concrete, this study aims to investigate the microstructure and mechanical properties of fly ash blended cement pastes. To fulfill the aim of this study, multiple techniques, including scanning electron microscopy with backscattered electron and energy-dispersive X-ray spectroscopy detectors, thermo-gravimetric analysis, X-ray diffraction, instrumented nanoindentation and ultrasonic measurements, were applied on fly ash blended cement pastes at different water to binder ratios. Through this study, the mechanical properties of fly ash blended cement pastes were reported, and the results showed that the incorporation of fly ash significantly influenced the microstructure and mechanical properties of calcium-silicate-hydrates gel.
Microstructure and mechanical properties of fly ash blended cement pastes
Highlights Multiple techniques were used to study microstructure and mechanical properties. Microstructure and mechanical properties were quantitatively studied and linked. Two types of residual fly ash were found through this study. Influences of fly ash on the hydration products were investigated and discussed.
Abstract Regarding the wide use of fly ash in normal and high-strength concrete, this study aims to investigate the microstructure and mechanical properties of fly ash blended cement pastes. To fulfill the aim of this study, multiple techniques, including scanning electron microscopy with backscattered electron and energy-dispersive X-ray spectroscopy detectors, thermo-gravimetric analysis, X-ray diffraction, instrumented nanoindentation and ultrasonic measurements, were applied on fly ash blended cement pastes at different water to binder ratios. Through this study, the mechanical properties of fly ash blended cement pastes were reported, and the results showed that the incorporation of fly ash significantly influenced the microstructure and mechanical properties of calcium-silicate-hydrates gel.
Microstructure and mechanical properties of fly ash blended cement pastes
Hu, Chuanlin (author)
Construction and Building Materials ; 73 ; 618-625
2014-10-08
8 pages
Article (Journal)
Electronic Resource
English
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