ArticleMaterials (Basel, Switzerland)2021
Accuracy in Cement Hydration Investigations: Combined X-ray Microtomography and Powder Diffraction Analyses.
Article in Materials (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Mix and measure II: joint high-energy laboratory powder diffraction and microtomography for cement hydration studies.Journal of applied crystallography · 2024Article
- Antimicrobial action and chemical and physical properties of CuO-doped engineered cementitious composites.Scientific reports · 2023Article
- Recent Progress in Single and Combined Porosity-Evaluation Techniques for Porous Materials.Materials (Basel, Switzerland) · 2022Review
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5 authors.
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Abstract
Cement hydration is a very complex set of processes. The evolution of the crystalline phases during hydration can be accurately followed by X-ray powder diffraction data evaluated by the Rietveld method. However, accurate measurements of some microstructural features, including porosity and amorphous content developments, are more challenging. Here, we combine laboratory X-ray powder diffraction and computed microtomography (μCT) to better understand the results of the μCT analyses. Two pastes with different water-cement ratios, 0.45 and 0.65, filled within capillaries of two sizes, ϕ = 0.5 and 1.0 mm, were analysed at 50 days of hydration. It was shown that within the spatial resolution of the measured μCTs, ~2 μm, the water capillary porosity was segmented within the hydrated component fraction. The unhydrated part could be accurately quantified within 2 vol% error. This work is a first step to accurately determining selected hydration features like the hydration degree of amorphous phases of supplementary cementitious materials within cement blends.
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