Ettringite crystals (center) developed inside the pores of hydraulic lime mortar-scanning electron microscopy micrograph (secondary electrons mode).Micrograph was captured in a FEI Quanta-Inspect Scanning Electron Microscope coupled with Energy-dispersive X-ray spectroscopy (SEM/EDAX) at the Institute of Nanoscience and Nanotechnology of the National Centre for Scientific Research “Demokritos”
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