C-s-h Densification
C-s-h Densification - Related Videos
09:23
Fabrication, Densification, and Replica Molding of 3D Carbon Nanotube Microstructures
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Cited by 7 •
2012
We present methods for fabrication of patterned microstructures of vertically aligned carbon nanotubes (CNTs), and their use as master molds for production of polymer microstructures with organized nanoscale surface texture. The CNT forests are densified by condensation of solvent onto the substrate, which significantly increases their packing density and enables self-directed formation of 3D shapes.
09:56
Fabrication of Mechanically Tunable and Bioactive Metal Scaffolds for Biomedical Applications
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Cited by 11 •
2015
Bioactive and mechanically reliable metal scaffolds have been fabricated through a method which consists of two processes, dynamic freeze casting for the fabrication of porous Ti, and coating and densification of the Ti scaffolds. The densification process is simple, effective and applicable to the fabrication of functionally graded scaffolds.
09:23
Confirmation of Myocardial Ischemia and Reperfusion Injury in Mice Using Surface Pad Electrocardiography
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Cited by 12 •
2016
During murine myocardial ischemia/reperfusion surgery, correct placement of the occluding ligature is typically confirmed by visible observation of myocardial pallor. Herein, a method of electrocardiographically confirming ischemia and reperfusion, to supplement observed myocardial pallor, is demonstrated in male C57Bl/6 mice.
09:06
Culture of Small Colony Variant of Pseudomonas aeruginosa and Quantitation of its Alginate
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Cited by 8 •
2020
Here, we describe a growth condition to culture the small colony variant of Pseudomonas aeruginosa. We also describe two separate methods for the detection and quantitation of the exopolysaccharide alginate produced by P. aeruginosa using a traditional uronic acid carbazole assay and an alginate-specific monoclonal antibody (mAb) based ELISA.
14:32
Deacetylation Assays to Unravel the Interplay between Sirtuins (SIRT2) and Specific Protein-substrates
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Cited by 1 •
2016
This protocol describes the required steps to execute in vitro and in vivo deacetylation assays in order to establish the role of proteins as specific deacetylation substrates for sirtuins and further study the role of reversible - lysine acetylation as a post-translational modification.
FAQs
During hydration, newly formed products can occupy spaces between particles, while existing calcium silicate hydrate reorganizes into a more compact arrangement. This reduces connected capillary voids and changes the internal pore structure. In cement-based materials, that microstructural development helps explain why continued reaction can translate into improved load-bearing behavior.
Moisture conditions influence whether hydration and related rearrangement processes can continue within the cement system. They can therefore alter particle packing and pore structure as hydration products develop. For engineering practice, curing strategy matters because the resulting degree of densification affects later strength, stiffness, and resistance to water and aggressive agents.
A denser arrangement limits the connected pathways through which water and aggressive agents can move. That change in transport-related pore structure generally supports higher compressive strength, greater stiffness, and improved durability. The engineering benefit comes from linking microscale compactness with reduced porosity and stronger resistance to environmental penetration.
Particle packing determines how effectively hydration products occupy available space and fill capillary voids. More effective packing can produce a less porous internal structure and improve interfacial bonding within the cement-based material. These changes are relevant when designing mixtures because they connect the arrangement of constituents with strength, stiffness, and durability outcomes.
Supplementary cementitious materials are included within mixture-design strategies that seek to improve the development of the cementitious structure. Their use can be considered alongside continued reactions, particle packing, pore structure, and curing conditions. The intended engineering outcomes include improved structural performance and the possibility of reducing the amount of material required.
Curing strategies should be selected with attention to the moisture conditions that influence hydration-product formation and reorganization. In practice, this supports development of a more compact pore structure and stronger interfacial bonding. Such control is relevant to concrete designed for higher compressive strength, stiffness, durability, or reduced material use.