Void Content
Void Content - Related Videos
01:12
Total Voids in Concrete
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2024
Total voids in concrete encompass gel water volume, capillary pores, and entrapped air. Gel water (retained within the cement hydration products) and physically entrapped or adsorbed water are significant for the hydration process. For complete hydration, it's estimated that the space needed for the products of a cubic centimeter of cement doubles. Capillary pores constitute the unoccupied space within the hydrated cement paste, with their size largely influenced by the water-to-cement ratio...
06:39
Real-Time Void Spot Assay
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Cited by 14 •
2023
This article describes a new method to study mouse voiding behavior by incorporating video monitoring in the conventional void spot assay. This approach provides temporal, spatial, and volumetric information on the voiding events and details of mouse behavior during the light and dark phases of the day.
01:22
Imaging Studies VI: Voiding Cystourethrography and Cystography
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2025
Voiding Cystourethrography (VCUG) and Cystography are specialized radiographic procedures used to examine the structure and function of the bladder and urethra.Voiding Cystourethrography (VCUG)A Voiding Cystourethrogram (VCUG) is a diagnostic imaging procedure that assesses the anatomy and function of the lower urinary tract. It focuses on the bladder, bladder neck, and urethra, helping detect abnormalities such as vesicoureteral reflux (VUR)—the backward or reverse flow of urine into the...
15:04
A Neuronal and Astrocyte Co-Culture Assay for High Content Analysis of Neurotoxicity
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Cited by 46 •
2009
This article describes a novel protocol and reagent set designed for sensitive measurement of neurotoxic effects of compounds and treatments on co-cultures of neurons and astrocytes using high content analysis. Results demonstrate that high content analysis represents an exciting novel technology for neurotoxicity assessment.
07:04
Determination of the Glycogen Content in Cyanobacteria
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Cited by 26 •
2017
Here, we present a reliable and easy assay to measure the glycogen content in cyanobacterial cells. The procedure entails precipitation, selectable depolymerization, and the detection of glucose residues. This method is suitable for both wildtype and genetically engineered strains and can facilitate the metabolic engineering of cyanobacteria.
FAQs
Voids interrupt contact between the reinforcing fibers and the surrounding resin, so stresses cannot transfer as effectively across the fiber-matrix interface. This interruption can reduce the composite’s strength and stiffness and create local regions where damage develops more readily. Lowering entrapped empty space therefore supports more uniform load sharing and more reliable structural performance.
Air or volatile material can remain trapped when resin is mixed, fibers are laid up, or the part is molded and cured. Incomplete consolidation leaves that material inside the structure rather than removing it. The sequence and conditions of these manufacturing stages therefore influence the final void content and help explain why process control is central to composite quality.
Voids can provide pathways for moisture entry and crack growth within a composite. Those pathways make it easier for environmental exposure or developing damage to extend through the material, while the voids also weaken load transfer. Monitoring and reducing void content is consequently important when long-term durability and consistent performance matter.
Engineers quantify void content using density-based measurements, microscopy, or nondestructive inspection. These approaches provide different forms of evidence: density-based methods relate the assessment to the material’s density, microscopy allows internal pores to be examined, and nondestructive inspection supports evaluation of the component. Together, they provide options for composite quality control.
Effective consolidation, applied pressure, and controlled process conditions are the principal ways identified for limiting trapped air or volatiles. These measures act during fabrication by helping remove or prevent retained empty space as the resin and fibers form the component. Better control produces improved fiber-matrix load transfer and strengthens quality-control decisions.
It is relevant wherever composite reliability and repeatable quality are required, including aerospace, automotive, civil, and other composite applications. In these settings, engineers use void-content control to support desired density, strength, stiffness, and durability rather than treating porosity as a purely cosmetic defect. The measure therefore connects manufacturing conditions with structural performance.