Improvement of the Durability of Recycled Masonry Aggregate Concrete
Tereza Pavlů,
Kristina Fořtová,
Jakub Řepka,
Diana Mariaková,
Jiří Pazderka
Affiliations
Tereza Pavlů
Department of Building Structures, Faculty of Civil Engineering, Czech Technical University in Prague, Thakurova 7, 160 00 Prague, Czech Republic
Kristina Fořtová
Research Team Architecture and the Environment, University Centre for Energy Efficient Buildings, Czech Technical University in Prague, Trinecka 1024, 273 43 Bustehrad, Czech Republic
Jakub Řepka
Department of Building Structures, Faculty of Civil Engineering, Czech Technical University in Prague, Thakurova 7, 160 00 Prague, Czech Republic
Diana Mariaková
Department of Building Structures, Faculty of Civil Engineering, Czech Technical University in Prague, Thakurova 7, 160 00 Prague, Czech Republic
Jiří Pazderka
Department of Building Structures, Faculty of Civil Engineering, Czech Technical University in Prague, Thakurova 7, 160 00 Prague, Czech Republic
The use of recycled masonry aggregate for concrete is mostly limited by the worse properties in comparison with natural aggregate. For these reasons it is necessary to find ways to improve the quality of recycled masonry aggregate concrete and make it more durable. One possibility is utilization of crystalline admixture which was verified in this study by laboratory measurements of key material properties and durability. The positive influence of mineral admixture was proved for freeze-thaw resistance. The positive impact to carbonation resistance was not unambiguous. In conclusion, the laboratory evaluation shows how to improve the durability of recycled masonry aggregate concrete, however, it is necessary to investigate more about this topic.
