Development of prefabricated components with minimized cement content through the use of fine-grained secondary materials

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F20%3A00343852" target="_blank" >RIV/68407700:21110/20:00343852 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.2495/HPSM200161" target="_blank" >https://doi.org/10.2495/HPSM200161</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2495/HPSM200161" target="_blank" >10.2495/HPSM200161</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Development of prefabricated components with minimized cement content through the use of fine-grained secondary materials

Popis výsledku v původním jazyce

This paper describes the results and an example of the use of secondary materials in concrete for application to practice, which were obtained from a project in cooperation with the University CTU in Prague and company Hochtief CZ a.s. Extensive experiments were carried out in the project, where the ideal concrete with admixtures was sought. Prefabricated part made of concrete composite with minimized cement content was realized, which replaced binder based on the use of secondary materials that apply modified energy by-products. It is a hydraulic ternary binder, which replaces cement in the amount of 50% compared to the original production formulation of concrete. The prefabricated part uses recycled materials or secondary raw materials of the by-product type in combination with the reduction of energy intensity, which is primarily associated with the production of cement. The implementation of the operational test of the production of the basic slab element for the prefabricated part was carried out at the concrete plant of the company Chynovska 714, 391 11 Plana nad Luznici of the company Hochtief CZ a.s., on 2 October 2019 with the possibility of further use for soundproof walls waste rubber in a thickness of 20 mm, with resistance to aggressive environments and service life of 30 years. The new implementation has a positive impact on the environment while achieving a lower carbon footprint and at the same time the use of part of materials that otherwise end up as waste, the implementation leads to CO2 reduction and actively supports the Waste Management Plan of the Czech Republic (WMP) for the period 2015–2024.

Název v anglickém jazyce

Development of prefabricated components with minimized cement content through the use of fine-grained secondary materials

Popis výsledku anglicky

This paper describes the results and an example of the use of secondary materials in concrete for application to practice, which were obtained from a project in cooperation with the University CTU in Prague and company Hochtief CZ a.s. Extensive experiments were carried out in the project, where the ideal concrete with admixtures was sought. Prefabricated part made of concrete composite with minimized cement content was realized, which replaced binder based on the use of secondary materials that apply modified energy by-products. It is a hydraulic ternary binder, which replaces cement in the amount of 50% compared to the original production formulation of concrete. The prefabricated part uses recycled materials or secondary raw materials of the by-product type in combination with the reduction of energy intensity, which is primarily associated with the production of cement. The implementation of the operational test of the production of the basic slab element for the prefabricated part was carried out at the concrete plant of the company Chynovska 714, 391 11 Plana nad Luznici of the company Hochtief CZ a.s., on 2 October 2019 with the possibility of further use for soundproof walls waste rubber in a thickness of 20 mm, with resistance to aggressive environments and service life of 30 years. The new implementation has a positive impact on the environment while achieving a lower carbon footprint and at the same time the use of part of materials that otherwise end up as waste, the implementation leads to CO2 reduction and actively supports the Waste Management Plan of the Czech Republic (WMP) for the period 2015–2024.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/TN01000056" target="_blank" >TN01000056: Centrum pokročilých materiálů a efektivních budov</a><br>

Návaznosti

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

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název statě ve sborníku

WIT Transactions on the Built Environment

ISBN

978-1-78466-389-6

ISSN

1746-4498

e-ISSN

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Počet stran výsledku

8

Strana od-do

153-160

Název nakladatele

WIT PRESS

Místo vydání

Wessex

Místo konání akce

Prague

Datum konání akce

2. 9. 2020

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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