Comparison of the time evolution of temperatures in massive foundation structures due to the hydration of concrete made from alkali-activated materials and from cement

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27120%2F25%3A10260230" target="_blank" >RIV/61989100:27120/25:10260230 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.taylorfrancis.com/books/edit/10.1201/9781003677895/engineering-materials-structures-systems-methods-sustainable-future-alphose-zingoni?refId=7b1f4fb1-cfc8-4355-b5b8-12421d9ff3e7&context=ubx" target="_blank" >https://www.taylorfrancis.com/books/edit/10.1201/9781003677895/engineering-materials-structures-systems-methods-sustainable-future-alphose-zingoni?refId=7b1f4fb1-cfc8-4355-b5b8-12421d9ff3e7&context=ubx</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1201/9781003677895-109" target="_blank" >10.1201/9781003677895-109</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Comparison of the time evolution of temperatures in massive foundation structures due to the hydration of concrete made from alkali-activated materials and from cement

Popis výsledku v původním jazyce

When designing massive foundation blocks of extremely loaded industrial, water and energy concrete structures, it is necessary to solve the role of the influence of the heat of hydration on the temperature field and internal tension. During the design of the technological process of concreting, the unfavorable increase in temperature inside the foundation can be eliminated by a suitable design of the concrete mixture recipe, the concreting procedure and the treatment of the hardening concrete under the simultaneous influence of variable external environmental temperatures. Another condition of the design is the observance of homogeneous behavior, integrity and cohesion of the foundation structure as a whole. When calculating the non-stationary temperature field, knowledge of the time evolution of the heat of hydration of concrete in adiabatic conditions Qh is important, which, in addition to the boundary conditions, is the decisive input temperature load for the calculation. Currently, with a view to reducing the carbon footprint, there is an effort to use alkali-activated materials that do not contain Portland cement. In addition, waste material is used in this way, and this contribute to the circular economy. A comparison is made of the development of heat of hydration in a foundation structure made of concrete from alkali-activated materials and traditional Portland cement, while simultaneously achieving the highest possible concrete strength while minimizing the increase in its temperatures. © 2025 selection and editorial matter, Alphose Zingoni; individual chapters, the contributors. All rights reserved.

Název v anglickém jazyce

Comparison of the time evolution of temperatures in massive foundation structures due to the hydration of concrete made from alkali-activated materials and from cement

Popis výsledku anglicky

When designing massive foundation blocks of extremely loaded industrial, water and energy concrete structures, it is necessary to solve the role of the influence of the heat of hydration on the temperature field and internal tension. During the design of the technological process of concreting, the unfavorable increase in temperature inside the foundation can be eliminated by a suitable design of the concrete mixture recipe, the concreting procedure and the treatment of the hardening concrete under the simultaneous influence of variable external environmental temperatures. Another condition of the design is the observance of homogeneous behavior, integrity and cohesion of the foundation structure as a whole. When calculating the non-stationary temperature field, knowledge of the time evolution of the heat of hydration of concrete in adiabatic conditions Qh is important, which, in addition to the boundary conditions, is the decisive input temperature load for the calculation. Currently, with a view to reducing the carbon footprint, there is an effort to use alkali-activated materials that do not contain Portland cement. In addition, waste material is used in this way, and this contribute to the circular economy. A comparison is made of the development of heat of hydration in a foundation structure made of concrete from alkali-activated materials and traditional Portland cement, while simultaneously achieving the highest possible concrete strength while minimizing the increase in its temperatures. © 2025 selection and editorial matter, Alphose Zingoni; individual chapters, the contributors. All rights reserved.

Druh

C - Kapitola v odborné knize

CEP obor

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OECD FORD obor

20100 - Civil engineering

Projekt

<a href="/cs/project/EH22_008%2F0004631" target="_blank" >EH22_008/0004631: Materiály a technologie pro udržitelný rozvoj</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název knihy nebo sborníku

Engineering materials, structures, systems and methods for a more sustainable future : proceedings of the Ninth International Conference on Structural Engineering, Mechanics and Computation, 1-3 September 2025, Cape Town, South Africa

ISBN

978-1-03-278070-2

Počet stran výsledku

6

Strana od-do

656-661

Počet stran knihy

1680

Název nakladatele

CRC Press

Místo vydání

Boca Raton

Kód UT WoS kapitoly

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