Strength and durability of concrete containing recycled concrete aggregates

2018 ◽  
Vol 19 ◽  
pp. 349-365 ◽  
Author(s):  
Job Thomas ◽  
Nassif Nazeer Thaickavil ◽  
P.M. Wilson
2011 ◽  
Vol 71-78 ◽  
pp. 5046-5049
Author(s):  
Xiao Xiong Zha ◽  
Jian Wei Zhong

With the rapid development of urban construction, the waste that construction brings is also increasing. The recycled concrete technology can solve the problems of waste concrete, but also save the natural sand. This paper gives the progress on the research about the reliability of recycled concrete. Because of the rough surface of the recycled concrete aggregates and large porosity, the apparent density, strength and durability of the recycled concrete are different from the ordinary concrete on many aspects. So the study of the reliability about the recycled concrete is very necessary. The page will research on the material subentry coefficient of fifty and sixty years.


Materials ◽  
2016 ◽  
Vol 9 (2) ◽  
pp. 98 ◽  
Author(s):  
Francisco Cartuxo ◽  
Jorge de Brito ◽  
Luis Evangelista ◽  
José Jiménez ◽  
Enrique Ledesma

2018 ◽  
Author(s):  
Driton R. Kryeziu ◽  
Armend Muja ◽  
Fisnik Kadiu ◽  
Visar Krelani ◽  
Besian Sinani ◽  
...  

Crystals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 209
Author(s):  
Adilson C. Paula Junior ◽  
Cláudia Jacinto ◽  
Thaís M. Oliveira ◽  
Antonio E. Polisseni ◽  
Fabio M. Brum ◽  
...  

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.


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