The Structural Use of Recycled Aggregate Concrete for Renovation of Massive External Walls of Czech Fortification

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F22%3A00358458" target="_blank" >RIV/68407700:21110/22:00358458 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21720/22:00358458

Result on the web

<a href="https://doi.org/10.3390/buildings12050671" target="_blank" >https://doi.org/10.3390/buildings12050671</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/buildings12050671" target="_blank" >10.3390/buildings12050671</a>

Result language

angličtina

Original language name

The Structural Use of Recycled Aggregate Concrete for Renovation of Massive External Walls of Czech Fortification

Original language description

The use of recycled aggregate concrete is mainly negatively affected by its poorer mechanical and long-term properties. However, there are few structural applications for which recycled aggregates can be used. In this case study, the possibility of use as a massive external reinforcement wall is verified. For this structural application, the most important characteristics are freeze-thaw resistance, carbonation resistance and then mechanical properties such as compressive strength. The durability characteristics of the materials have been tested and improved in the study. The mechanical properties and durability of recycled aggregated concrete have been verified and a crystalline mixture has been used to improve durability. The specific structural application of the massive external reinforcement wall is for the renovation of the Czech WW2 concrete fortification, which is one of the most important cultural heritages of the Czech Republic of the 20th century. However, these buildings have not yet been professionally rebuilt, but this research project aims to change this trend. The thickness of the bunker wall is between 0.5 and 3.5 m (depending on the type of bunker) which leads to a huge amount of concrete and primary resources consumption; however, the security function is not necessary today, so the reconstruction could be provided by recycled aggregate concrete. The results showed a positive effect of the crystalline mixture on the essential properties of recycled aggregate concrete. Recycled aggregate concrete with a complete replacement of aggregate by recycled concrete or masonry aggregate is possible to use for the reconstruction of the Czech WW2 concrete fortification and save natural aggregate as a primary resource.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20101 - Civil engineering

Project

<a href="/en/project/DG18P02OVV063" target="_blank" >DG18P02OVV063: Development of the progressive rehabilitation methodology for restoration and conservation of military fortress objects from the 1930s</a><br>

Continuities

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

Publication year

2022

Confidentiality

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

Name of the periodical

Buildings

ISSN

2075-5309

e-ISSN

2075-5309

Volume of the periodical

12

Issue of the periodical within the volume

5

Country of publishing house

CH - SWITZERLAND

Number of pages

21

Pages from-to

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UT code for WoS article

000803323600001

EID of the result in the Scopus database

2-s2.0-85130972262