scholarly journals Comparative analysis on costs and benefits of producing natural and recycled concrete aggregates: A South African case study

2020 ◽  
Vol 13 ◽  
pp. e00450
Author(s):  
Eric A. Ohemeng ◽  
Stephen O. Ekolu
Keyword(s):  
Comparative Analysis ◽  
South African ◽  
Recycled Concrete ◽  
Costs And Benefits ◽  
Concrete Aggregates ◽  
Recycled Concrete Aggregates

scholarly journals Characterisation and Life Cycle Assessment of Pervious Concrete with Recycled Concrete Aggregates

Crystals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 209
Author(s):  
Adilson C. Paula Junior ◽  
Cláudia Jacinto ◽  
Thaís M. Oliveira ◽  
Antonio E. Polisseni ◽  
Fabio M. Brum ◽  
...  
Keyword(s):  
Environmental Performance ◽  
Treatment Plant ◽  
Recycled Concrete ◽  
Pervious Concrete ◽  
Recycled Aggregate ◽  
Recycled Aggregates ◽  
Positive Contribution ◽  
Concrete Aggregates ◽  
Recycled Concrete Aggregates

The search for environmental preservation and conservation of natural resources gives rise to new concepts and viable technical solutions on the path to sustainable development. In this context, this study’s main objective is to analyse the influence of recycled concrete aggregates (RCAs) on the development of pervious concrete, whose use as a floor covering represents an excellent device to mitigate the urban soil sealing phenomena. For this, mechanical and hydraulic tests were carried out, in addition to microstructural analyses and the assessment of its environmental performance. The results obtained were compared to reference studies also involving the incorporation of recycled aggregates. A pilot-scale case study was conducted, involving a parking space lined with pervious concrete moulded “in situ”. In laboratory tests, permeability coefficients and mechanical strengths compatible with the literature and above the normative limit for light traffic were found. The case study demonstrated higher permeability than in the laboratory, but the flexural strength was lower, being indicated only for pedestrian traffic. The environmental assessment showed that the RCA represents a positive contribution to the environmental performance of pervious concrete. Still, attention should be given to the recycled aggregate transport distance between the concrete plant and the RCA treatment plant.

scholarly journals Generalized quality control parameter for heterogenous recycled concrete aggregates: A pilot scale case study

2019 ◽  
Vol 208 ◽  
pp. 589-601 ◽  
Author(s):  
Caroline Santana Rangel ◽  
Romildo Dias Toledo Filho ◽  
Mayara Amario ◽  
Marco Pepe ◽  
Gabriela de Castro Polisseni ◽  
...  
Keyword(s):  
Quality Control ◽  
Control Parameter ◽  
Pilot Scale ◽  
Recycled Concrete ◽  
Concrete Aggregates ◽  
Recycled Concrete Aggregates

Green Concrete made with Recycled Concrete Aggregates: Fresh and Hardened Properties

2018 ◽  
Author(s):  
Driton R. Kryeziu ◽  
Armend Muja ◽  
Fisnik Kadiu ◽  
Visar Krelani ◽  
Besian Sinani ◽  
...  
Keyword(s):  
Recycled Concrete ◽  
Green Concrete ◽  
Concrete Aggregates ◽  
Recycled Concrete Aggregates ◽  
Hardened Properties
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