Next Article in Journal
Does China’s Pollution Levy Standards Reform Promote Green Growth?
Next Article in Special Issue
Maintenance Cost Estimation in PSCI Girder Bridges Using Updating Probabilistic Deterioration Model
Previous Article in Journal
Using RPL Model to Probe Trade-Offs among Negative Externalities of Controlling Invasive Species
Previous Article in Special Issue
A New Eco-Friendly Porous Asphalt Mixture Modified by Crumb Rubber and Basalt Fiber
Open AccessArticle

Environmental Assessment of Two Use Cycles of Recycled Aggregate Concrete

1
University Centre for Energy Efficient Buildings, Technical University, Prague, Trinecka 1024, 273 43 Bustehrad, Czech Republic
2
Department of Environmental Chemistry, Faculty of Environmental Technology, University of Chemistry and Technology, Technicka 5, 166 28 Praha 6 – Dejvice, Prague, Czech Republic
*
Author to whom correspondence should be addressed.
Sustainability 2019, 11(21), 6185; https://doi.org/10.3390/su11216185
Received: 30 September 2019 / Revised: 30 October 2019 / Accepted: 1 November 2019 / Published: 5 November 2019
The main goal of this study was to compare two use cycles of natural aggregate concrete and recycled aggregate concrete, which is another way to compare the environmental impacts of recycled materials. A series of concrete mixtures with various replacement ratios of primary resources with recycled ones were prepared for this study. The mechanical properties of concrete mixtures were examined and were used for the design of structural elements in the same utilized properties. The two use cycles of a structural element were compared using life cycle assessment (LCA). In the first use cycle, the LCA of the structural element containing only primary raw materials was assessed. In the second use cycle, the LCA of a structural element in which primary materials were partially replaced by recycled ones was assessed. The obtained results confirm the potential use of high-quality recycled aggregate originating from local sources in some applications in building structures. Furthermore, the environmental assessment indicates the benefits of using recycled materials, such as environmental savings, especially the reduction of primary resource use, embodied energy, and embodied emissions, as well as reduction of the pressure on landfill sites. View Full-Text
Keywords: construction and demolition waste; recycled concrete aggregate; recycled aggregate concrete; recycled concrete powder; LCA, environmental savings; raw material savings construction and demolition waste; recycled concrete aggregate; recycled aggregate concrete; recycled concrete powder; LCA, environmental savings; raw material savings
Show Figures

Figure 1

MDPI and ACS Style

Pavlů, T.; Kočí, V.; Hájek, P. Environmental Assessment of Two Use Cycles of Recycled Aggregate Concrete. Sustainability 2019, 11, 6185.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop