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Related Concept Videos

Mass Concreting01:22

Mass Concreting

Mass concreting refers to the process of placing large volumes of concrete, such as in gravity dams. The heat generated during the cement hydration process and differential cooling rates within the concrete mass can lead to a temperature gradient, which can result in thermal cracks in the concrete mass.
To reduce the risk of such cracking, the concrete mix may incorporate low-heat cement and pozzolans to reduce the temperature rise. Pre-cooled angular aggregates and water-reducing admixtures...
Accelerated Curing of Concrete01:25

Accelerated Curing of Concrete

Accelerating concrete curing is achieved by applying heat and additional moisture. This process accelerates the hydration of the cement, resulting in an earlier strength gain in the concrete. Steam curing is a method wherein the concrete products are either transported through a chamber on a conveyor belt or encased in plastic, allowing steam at atmospheric pressure to circulate freely around them. This process begins with a phase of moist curing that typically lasts between 3 to 5 hours, after...

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Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

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Related Experiment Video

Updated: May 30, 2026

Experimental Implementation of a New Composite Fabrication Method: Exposing Bare Fibers on the Composite Surface by the Soft Layer Method
06:26

Experimental Implementation of a New Composite Fabrication Method: Exposing Bare Fibers on the Composite Surface by the Soft Layer Method

Published on: October 6, 2017

Critical appraisal: preheating composites.

Juliana B da Costa1, Thomas J Hilton, Edward J Swift

  • 1Department of Restorative Dentistry, Division of Operative Dentistry, OHSU School of Dentistry, Portland, OR, USA.

Journal of Esthetic and Restorative Dentistry : Official Publication of the American Academy of Esthetic Dentistry ... [Et Al.]
|August 3, 2011
PubMed
Summary
This summary is machine-generated.

Preheating resin composite before dental restoration placement may improve adaptation and mechanical properties. This technique aims to minimize voids and maximize the composite

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Magnet Assisted Composite Manufacturing: A Flexible New Technique for Achieving High Consolidation Pressure in Vacuum Bag/Lay-Up Processes
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Magnet Assisted Composite Manufacturing: A Flexible New Technique for Achieving High Consolidation Pressure in Vacuum Bag/Lay-Up Processes

Published on: May 17, 2018

Related Experiment Videos

Last Updated: May 30, 2026

Experimental Implementation of a New Composite Fabrication Method: Exposing Bare Fibers on the Composite Surface by the Soft Layer Method
06:26

Experimental Implementation of a New Composite Fabrication Method: Exposing Bare Fibers on the Composite Surface by the Soft Layer Method

Published on: October 6, 2017

Magnet Assisted Composite Manufacturing: A Flexible New Technique for Achieving High Consolidation Pressure in Vacuum Bag/Lay-Up Processes
09:41

Magnet Assisted Composite Manufacturing: A Flexible New Technique for Achieving High Consolidation Pressure in Vacuum Bag/Lay-Up Processes

Published on: May 17, 2018

Area of Science:

  • Dental Materials Science
  • Restorative Dentistry
  • Biomaterials Engineering

Background:

  • Resin composite is the preferred material for direct dental restorations, surpassing amalgam in posterior applications.
  • Limitations of resin composite include adhesive bond degradation and inferior mechanical properties compared to amalgam.
  • Minimizing voids and maximizing the degree of conversion are crucial for enhancing composite restoration longevity and performance.

Discussion:

  • Preheating resin composite has been proposed to enhance adaptation within cavity preparations by reducing viscosity.
  • Warmer composite may facilitate better handling and manipulation, potentially leading to fewer voids.
  • The effect of preheating on the degree of conversion and subsequent mechanical properties requires careful evaluation.

Key Insights:

  • Preheating resin composite may improve interfacial adaptation and reduce voids during direct restoration placement.
  • Evidence suggests that warming composite can enhance its flowability, aiding in achieving a void-free interface.
  • Maximizing the degree of conversion through preheating is essential for optimizing the mechanical integrity of the restoration.

Outlook:

  • Further research is needed to fully elucidate the benefits and potential drawbacks of using preheated resin composites.
  • Clinical studies are required to validate the long-term performance and durability of restorations made with warm composite.
  • Investigating optimal preheating protocols and their impact on material properties will guide clinical recommendations.