3 results match your criteria: "Building and Construction"
J Sch Psychol
June 2024
School of Education, University of New South Wales, Australia.
Cem Concr Res
November 2016
Argonne National Laboratory, Advanced Photon Source, Argonne, Illinois, 60439, USA.
The reasons for the start and end of the induction period of cement hydration remain topic of controversy. One long-standing hypothesis is that a thin metastable hydrate forming on the surface of cement grains significantly reduces the particle dissolution rate; the eventual disappearance of this layer re-establishes higher dissolution rates at the beginning of the acceleration period. However, the importance, or even the existence, of this metastable layer has been questioned because it cannot be directly detected in most experiments.
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October 2016
Argonne National Laboratory, Center for Nanoscale Materials, Argonne, Illinois, 60439, USA.
Disagreements about the mechanisms of cement hydration remain despite the fact that portland cement has been studied extensively for over 100 years. One reason for this is that direct observation of the change in microstructure and chemistry are challenging for many experimental techniques. This paper presents results from synchrotron nano X-ray tomography and fluorescence imaging.
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