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2004111 · This paper represents an attempt to provide an introduction to the microstructure of cement paste and concrete as seen in backscatter-mode scanning el…
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201761 · This research reports on the experimental study on Sustainable High Performance Concrete and its microstructural behaviour. The major concrete constituents were replaced with alternative materials ...
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2010426 · Abstract A low water/cement ratio (w/c=0.20) hydrated Portland cement paste was analyzed by grid-indentation coupled with ex situ scanning electron microscope-energy-dispersive X-ray spectra (SEM-EDS) analysis at each indentation point. Because finite element and Monte-Carlo simulations showed that the microvolumes probed by …
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Coal fly ash is widely used in as raw material in concrete industry because it can replace part of the cement and fly ash contributes to improve certain properties of concrete. As a way to reduce the contribution of coal fired power plants to the climate change, more and more coal is replaced by biomass.
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2022515 · Similarly, the study of durability aspects of concrete containing pumice against acidic environments was conducted by Samimi et al. [ 31 ]. They observed that the partial replacement of cement with pumice imparted higher resistance against sulfuric acid attacks due to the consumption of portlandite during pozzolanic action.
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2004111 · Abstract During the last 20 years, backscattered electron imaging of polished surfaces has become well established as a method for the study of cement and concrete microstructures. The technique has many advantages, including the visualisation of representative cross-sections over a wide range of magnifications and reproducible …
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concrete in the construction industries for the replacement of cement. In this works, it is planned to perform the SEM and EDX analysis to predict the
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2022524 · The carbon dioxide was injected into Portland cement concrete in both gaseous and solid forms and in two different dosages, 0.015% by weight of cement (bwc) and 0.03% by weight of cement (bwc). Moreover, the effect of the different injection times of carbon dioxide inside the Portland cement concrete mixes was explored through injecting …
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202221 · Abstract. The validation of reactive transport models requires the understanding and quantification of the chloride sorption by C-S-H, but the experimental methods are lacking. In this paper, we use SEM-EDX hypermaps to quantify the chloride sorption in hydrated an C 3 S paste, after equilibrium in solutions of chloride salts (NaCl, …
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202311 · The large-scale production of cement is posing environmental problems on one hand and unrestricted depletion of natural resources on the other hand. Each ton of Portland cement production results in loading about one ton of CO 2 in to the environment. Environmental and economic reasons require there vision of present concrete making …
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