Influence of SCM on the Permeability of Concrete with Recycled Aggregate
Wojciech Kubissa , Roman Jaskulski , Miroslav Brodnan
AbstractThe article presents experimental analysis of concretes mixed by using natural and low quality recycled concrete aggregate (RCA). The resistance of concretes with both, RCA and supplementary cementitious materials (SCM) to penetration in aggressive environmental conditions was studied. The influence of fly ash, microsilica and metakaolin on the concrete permeability was investigated. Besides the fundamental mechanical properties of concrete, sorptivity, water absorption, depth of penetration of water under pressure and chloride migration coefficient were tested. The significant effect on the permeability of RCA and SCM is described and discussed. The replacement of the natural aggregate by RCA decreased the concrete resistance to penetration of aggressive media, but the application of the SCM significantly reduced this negative impact.
|Journal series||Periodica Polytechnica-Civil Engineering, ISSN 0553-6626, (A 15 pkt)|
|Publication size in sheets||0.5|
|Keywords in Polish||-|
|Keywords in English||recycled concrete aggregate, supplementary cementitious materials, concrete durability, permeability|
|Abstract in Polish||-|
|Score|| = 15.0, 21-11-2019, ArticleFromJournal|
= 15.0, 21-11-2019, ArticleFromJournal
|Publication indicators||= 3; = 6; : 2016 = 0.554; : 2016 = 0.313 (2) - 2016=0.365 (5)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.