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Related Concept Videos

Cold Weather Concreting01:27

Cold Weather Concreting

112
When freshly poured concrete is exposed to freezing temperatures before it has set, the water within the concrete can freeze. This expansion disrupts the setting process, delays chemical reactions necessary for hardening, and increases the volume of pores within the hardened concrete, which weakens its overall structure. If the concrete manages to reach an appreciable strength before it freezes, the damage can be somewhat mitigated.
To counteract the negative impacts of cold weather, ensuring...
112
Mass Concreting01:22

Mass Concreting

108
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...
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Strength and Heat of Hydration01:29

Strength and Heat of Hydration

345
The hydration of cement is an exothermic reaction in which heat is generated as cement hydrates. This heat of hydration is critical to cement's strength development. The rate at which this heat is generated affects the temperature rise, with a majority of the heat being released early in the hydration process, half within the first three days, and about 75% within the first week.
The heat of hydration for each cement compound is significant; for instance, tricalcium aluminate (C3A) and...
345
Calorimetry01:19

Calorimetry

3.2K
When objects at different temperatures are placed in contact with each other but isolated from everything else, they attain thermal equilibrium. A container that prevents heat transfer in or out is called a calorimeter, and the use of a calorimeter to make measurements is called calorimetry. Generally, these measurements involve heat or specific heat capacity. The term "calorimetry problem" is used for any problem where the specified objects are thermally isolated from their...
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Joule-Thomson Effect01:21

Joule-Thomson Effect

5.4K
The Joule-Thomson effect, also known as the Joule-Kelvin effect, describes the temperature change of a fluid when it is forced through a valve or porous plug while keeping it in a thermally insulated environment. This experiment is called a throttling process. This is an important effect widely used in refrigeration and the liquefaction of gases.
This experiment forces high-pressure gas through a throttle valve or a porous plug to a lower-pressure region. The gas expands as it passes through to...
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Thermosensation01:43

Thermosensation

31.8K
Peripheral thermosensation is the perception of external temperature. A change in temperature (on the surface of the skin and other tissues) is detected by a family of temperature-sensitive ion channels called Transient Receptor Potential, or TRP, receptors. These receptors are located on free nerve endings. Those detecting cold temperatures are closer to the surface of the skin than the nerve endings detecting warmth. These thermoTRP channels, while temperature selective, have relatively...
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Author Spotlight: Advancements in High-Performance Thermoelectric Thin Films Through Radio Frequency Magnetron Sputtering
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Cement-Based Thermoelectric Materials, Devices and Applications.

Wanqiang Li1, Chunyu Du2, Lirong Liang1

  • 1College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518055, People's Republic of China.

Nano-Micro Letters
|August 11, 2025
PubMed
Summary
This summary is machine-generated.

Cement-based thermoelectric materials (CTEMs) offer a sustainable solution for energy harvesting in buildings. By optimizing fillers and matrices, these advanced composites enable efficient thermoelectric conversion, reducing the environmental impact of construction.

Keywords:
Device structureFunctional cementSmart buildingThermoelectric materials

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Area of Science:

  • Materials Science
  • Sustainable Construction
  • Thermoelectric Energy Conversion

Background:

  • Traditional cement production is energy-intensive and a major source of carbon emissions.
  • There is a growing need for construction materials that balance ecological responsibility with advanced functional performance.
  • Cement composites offer potential for thermoelectric (TE) applications by integrating tailored fillers.

Purpose of the Study:

  • To provide a comprehensive overview of cement-based thermoelectric materials (CTEMs).
  • To review advancements in TE performance enhancement through filler optimization and matrix innovation.
  • To discuss fabrication, applications, and future directions for CTEMs in smart and sustainable infrastructure.

Main Methods:

  • Review of existing literature on cement-based thermoelectric materials and devices.
  • Analysis of strategies for enhancing TE performance via material design (fillers and matrices).
  • Consolidation of fabrication techniques and performance evaluation methods for cement-based thermoelectric devices (CTEDs).

Main Results:

  • Incorporating tailored fillers into cement matrices significantly enhances thermoelectric conversion capabilities.
  • CTEMs can harness solar radiation and recover waste heat for bidirectional energy conversion.
  • Recent advancements focus on optimizing fillers, matrices, and fabrication for improved TE performance.

Conclusions:

  • CTEMs present a promising pathway for sustainable energy harvesting in buildings.
  • Further research in material design, device engineering, and scalable manufacturing is crucial for practical deployment.
  • CTEMs can contribute to intelligent infrastructure through monitoring, protection, and energy harvesting applications.