Pore Structure
The Pore Structure of Phosphoaluminate Cement
... The effects of curing time and water-to-cement ratio (W/C) on the pore structure of phosphoaluminate cement (PAC) paste are here presented. Based on the adsorption and condensation theory, the adsorption ...
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The effect of pore structure on gas and liquid permeability in crystalline rocks
... f pore structure, including the ‘surface roughness’, o f the various materials, but it also depends on the criteria used for the validity o f Darcy’s ...
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Relationship between Pore Structure and Chloride Ion Diffusivity in Cementitious Materials
... and pore structure. However, it is unclear which indicator of pore structure is suitable for estimating chloride ion ...critical pore diameter, threshold pore diameter and ...
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Changes in gas permeability and pore structure of wood under heat treating temperature conditions
... and pore structure of wood are evaluated after heat treatment with tem‑ peratures ranging from 190 to 230 °C for 6 h for both hardwood (yellow poplar: Liriodendron tulipifera) and softwood (Korean red pine: ...
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Evolution of pore structure during microwave freeze-drying of Chinese yam
... of structure of MFD foods. In this study, the changes of pore structure during the process of MFD Chinese yam were investigated by SEM and mercury ...The pore size distribution range was about ...
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Electrochemical Analysis of Ordered Mesoporous Carbons with Discriminating Pore Structure by Removing the Template with KOH or HF
... the pore structure of OMC prepared by hard template method shows great differences related to specific synthesis ...The pore structure of OMC may critically affect their electrochemical ...
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Relationship between Water-Permeability Coefficient and Pore-Structure Indicators of Cementitious Materials
... the pore structure, this difficult test is not ...the pore structure based on the mix design [3, 4], and this relationship is important for estimating the water permeability based on the ...
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Effects of different pretreatments on the pore structure of Chinese yam during microwave freeze drying
... closed pore into open ...the pore structure of the pretreated samples was looser and collapse was more likely to occur than that of the untreated ...of pore structure will affect the ...
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Practical Model for Predicting Compressive Strength of Aerated Concrete Based on Its Pore Structure Distribution
... its pore structure was proposed. The aerated concrete’s pore structure is characterized by using a MATLAB-based image analysis ...between pore structure and compressive strength ...
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Characterization and pore structure of rice husk ash cementitious material
... Synopsis: An Investigation on the mineralogical and chemical characterization, pore structure, chemical shrinkage and pozzolanic activity of commercially produced rice husk ashes RHA 1 a[r] ...
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Studying Pore Structure of Nonwovens with 3D Imaging and Modeling Permeability.
... that pore network is very complex including many connectivity and nodes, so it would be very difficult to analyze ...two pore structures referring to this type of information extracted from pore ...
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Effect of desulphurised waste on long term porosity and pore structure of blended cement pastes
... In order to gain a better idea about the size distribution of pores, the threshold diameter and percentage of small pores are plotted in Fig. 3aeb respectively for pastes containing 0, 20 and 40% SDW. The threshold ...
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Nano pore structure characterization of shales using gas adsorption and mercury intrusion techniques
... matrix pore structure of shale gas and tight gas reservoirs, an important role in hydrocarbon storage and transport, is too difficult to characterize accurately because of a predominant portion of ...
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Pore Structure of Calcium Sulfoaluminate Paste and Durability of Concrete in Freeze–Thaw Environment
... the pore volume by a similar ...water-intrudable pore volume as a portland cement paste with a w/c of ...the pore structure would be coarser and straighter in the CSA cement paste than the ...
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X-ray CT analysis of pore structure in sand
... for pore struc- ture of sand from microfocused CT scan ...a pore from the pore ...averaged pore index, such as the porosity and specific surface, is ...the pore structure of ...
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Effects of Activated Carbon Surface Chemistry and Pore Structure on the Adsorption of Trace Organic Contaminants from Aqueous Solution
... eliminate pore structure effects, equilibrium solid-phase concentrations at an equilibrium liquid-phase concentration of 50 µg/L were normalized by the pore volume in the pore width range that ...
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The pore structure of Clostridium perfringens epsilon toxin
... Etx pore structure reveals that H162 may also play a role in stabilizing the DBB fold by forming a hydrogen bond with D250 in the cap ...in pore formation also comes from previous mutagenesis ...
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Pore structure and permeation characteristics of foamed concrete
... Ramamurthy 2007b) which represent the most impor- tant factors affecting the service life of a concrete struc- ture (Sanjuan and Munoz-Martialay 1996b). In conse- quence, an important indicator of concrete long term ...
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Sensitivity Analysis of the Effect of Pore Structure and Geometry on Petrophysical and Electrical Properties of Tight Media: Random Network Modeling
... realistic pore networks for simple rocks, whereas in complex pore geometry formations, as formed in tight reservoirs, such a construction still remains a ...of pore structure and topology is ...
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Characterization of Pore Structure Based on Nondestructive Testing Technology
... get pore network structure of extraction and modeling, we can not only improve the speed of network extraction, and also ensures the accuracy of the pore distribution and connectivity ...the ...
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