The Journal of Physical Chemistry B · 1997 · 14 citations · 10 references
EngineeringMaterials EngineeringMaterials ScienceBuilding MaterialsSurface EngineeringSurface ScienceCementitious MaterialsPore Structure AnalysisPorosity AnalysisPorosity CharacterizationPorosity EvaluationPorous MaterialsMercury Intrusion PorosimetryPore Volume CharacterizationPorosimetryPorosity-property RelationshipsPorous Media CharacterizationPortland CementSurface Area-to-volume RatioSurface-to-volume Ratio Effects
Porous materials are characterized by a finite and discrete number of pore radii by deconvoluting the respective mercury intrusion porosimetry (MIP) curves. Introducing a perturbed cylindrical pore model enables these MIP radii to be correlated to the NMR spin−lattice relaxation time T 1 of the pore-confined water to give the surface-to-volume ratio ( S / V ) of the pores. The technique is exemplified using four different well-hydrated white Portland cement pastes covering a wide distribution of pore sizes. However, the technique should be of general use when characterizing high surface-to-volume ratio materials.
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