Utilization of crushed pavement blocks in concrete: assessment of functional properties and environmental impacts
Authors:
- Václav Kočí,
- Jan Kočí,
- Jan Fořt,
- Lukáš Fiala,
- Jiří Šál,
- Izabela Hager,
- Robert Černý
Abstract
Production of concrete is connected to extensive energy demands, greenhouse gases production or primary sources depletion. Reflecting current economical, social, or environmental trends, there is strong pressure on mitigation these requirements and impacts. The exploitation of secondary- or waste materials in production processes has therefore a great potential which is not related solely to binders but also to fillers. In this light, this paper aims at thorough investigations of concrete mixtures with crushed concrete pavements as partial or full replacement of natural coarse aggregates. The research combines experimental techniques to quantify the influence of the substitution on basic physical, mechanical, and heat/moisture transport/storage parameters. The experimental data obtained are further exploited as input data for computational prediction of coupled heat and moisture transport to assess the influence of the aggregates substitution on hygrothermal performance of the built-in concretes. In the last step, the environmental impacts are assessed. Since the changes in the hygrothermal performance were found to be insignificant (i), the compressive strength were improved by up to 25% (ii) and most of the environmental impact indicators were decreased (iii) at the same time, the findings of the research presented predeterminate such a reuse strategy to wider application and use.
- Record ID
- CUTd5f7ff12c33e4e659edc86c22fd55294
- Publication categories
- ;
- Author
- Journal series
- Materials, ISSN , e-ISSN 1996-1944, Biweekly
- Issue year
- 2021
- Vol
- 14
- No
- 23
- Pages
- [1-16]
- Article number
- 7361
- Other elements of collation
- fot.; rys.; tab.; wykr.; Bibliografia (na s.) - 14-16; Bibliografia (liczba pozycji) - 42; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 14, Iss. 23, Spec. Iss.
- Substantive notes
- Special Issue: Material Science in Transportation and Construction Engineering
- Keywords in English
- recycled concrete aggregates, material properties, environmental impacts, hygrothermal performance, experimental analysis, computational modelling
- DOI
- DOI:10.3390/ma14237361 Opening in a new tab
- URL
- https://www.mdpi.com/1996-1944/14/23/7361 Opening in a new tab
- Related project
- E-mobilność oraz zrównoważone materiały i technologie. . Project leader at PK: , ,
- Language
- eng (en) English
- License
- Score (nominal)
- 140
- Publication indicators
- = 5
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTd5f7ff12c33e4e659edc86c22fd55294/
- URN
urn:pkr-prod:CUTd5f7ff12c33e4e659edc86c22fd55294
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.