Mercury porosimetry of hardened cement pastes
WebAcid attack causes the deterioration of construction material surfaces. The objective of this study was to investigate the degradation of different types of cement mortar in terms of … Web1 sep. 2024 · Mercury intrusion porosimetry (MIP) has been extensively used for the pore structure characterization of porous materials, but the percolation of mercury in …
Mercury porosimetry of hardened cement pastes
Did you know?
Web7 dec. 2012 · The conversion of hydrated calcium aluminate cement (CAC) leads to an increase of its porosity which results in lower strength and higher permeability. Due to … Web14 apr. 2024 · High-altitude environments are characterized by low air pressures and temperature variations. Low-heat Portland cement (PLH) is a more energy-efficient alternative to ordinary Portland cement (OPC); however, the hydration properties of PLH at high altitudes have not been previously investigated. Therefore, in this study, the …
Web6 apr. 2024 · Porosity and pore size distributions are pore structure parameters that have direct effects on the mechanical properties and durability of concrete. In this paper, mercury intrusion... WebCharacteristics of hardened cement paste porosity by results of mercury porosimetry. Source publication The structure of hardened cement paste changing due to mineral …
WebMercury porosimetry of hardened cement pastes ... 01 Jun 1999-Cement and Concrete Research. TL;DR: In this article, the porosimetry was performed on 92 hardened cement paste specimens of water/cement (w/c) ratios 0.3, 0.4, 0 … Web12 dec. 2024 · A comparison of the results of calculated autogenous shrinkage with that of experimental studies on cement paste, ... Cook, R. A. and Hover, K. C. (1999) “Mercury porosimetry of hardened cement pastes.” Cement and Concrete Research, Vol. 29, No. 6, pp. 933–943, DOI: 10.1016/S0008-8846(99)00083-6.
WebThe investigation was performed by means of the following methods; thermal analysis, X-ray diffraction analysis, infrared spectroscopy analysis and mercury porosimetry. During …
Web14 apr. 2024 · High-altitude environments are characterized by low air pressures and temperature variations. Low-heat Portland cement (PLH) is a more energy-efficient … myoclonus after cvaWeb1 mei 1974 · Mercury Porosimetry tests have shown that steam cured cement pastes have a coarser pore structure than cement pastes cured at room temperature. Heating of … myoclonus after dialysisWebThe porosity of hardened cement paste was analysed using fluid displacement methods, optical, scanning and transmission electron microscopy and mercury intrusion … myoclonus after eatingWeb14 jul. 2024 · Mercury intrusion porosimetry (MIP) permits detecting pores from 5 nm to several microns [ 4 – 6 ]. Yio et al. [ 3] apply MIP to the blended cementitious materials and obtain a porosity of 10–30%. The measured pore size distribution (PSD) varies from 3 nm to 10 μ m and mainly focuses on the range of 10–200 nm. myoclonus after anesthesiaWeb23 jan. 2007 · Winslow DN, Diamond S (1970) Mercury porosimetry study of the evolution of porosity in portland cement. J Mater 5 (3):564–585 Google Scholar Roy DM (1989) Relationships between permeability, porosity, diffusion, and microstructure of cement pastes, mortar, and concrete at different temperatures. myoclonus after strokeWebA and R h in log scale in Fig. 5, a good linearity was observed at a region r< 0.01 micrometer where the gradient gives a fractal dimension. Fractal dimension of hardened cement paste was almost 3 ... the skulls 3Web105°C [9]. Obviously in hardened cement pastes, there is a space available only to water molecules and inaccessible to N 2 and mercury. In the subsequent discussion, the total … the skulls 3 cast