Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Durability performance of thermoactivated recycled cement concrete
https://orcid.org/0000-0003-1546-9197
Abstract This paper characterises the durability of concrete produced with thermoactivated recycled cement (RC) obtained from waste cement paste or the cementitious fraction of waste concrete. The durability of concrete produced with 5–100% RC and water/binder ratios of 0.35–0.65 was assessed through capillary absorption, oxygen permeability, rapid chloride migration and carbonation resistance tests. Overall, RC thermoactivated at 650 °C showed high rehydration capacity and effectively improved the durability properties of concrete compared to the same non-treated waste materials. Moreover, concretes with up to 100% RC reached comparable durability to that of reference concretes of equal w/b.
Highlights The durability of concrete with thermoactivated recycled cement (RC) was assessed. The effective rehydration of RC promoted the microstructure refinement. The carbonation and chloride resistance was comparable to that of reference concrete. RC showed to be a very promising eco-efficient supplementary cementitious material. Concrete with 100% RC presented similar to higher durability than reference concrete.
Durability performance of thermoactivated recycled cement concrete
https://orcid.org/0000-0003-1546-9197
Abstract This paper characterises the durability of concrete produced with thermoactivated recycled cement (RC) obtained from waste cement paste or the cementitious fraction of waste concrete. The durability of concrete produced with 5–100% RC and water/binder ratios of 0.35–0.65 was assessed through capillary absorption, oxygen permeability, rapid chloride migration and carbonation resistance tests. Overall, RC thermoactivated at 650 °C showed high rehydration capacity and effectively improved the durability properties of concrete compared to the same non-treated waste materials. Moreover, concretes with up to 100% RC reached comparable durability to that of reference concretes of equal w/b.
Highlights The durability of concrete with thermoactivated recycled cement (RC) was assessed. The effective rehydration of RC promoted the microstructure refinement. The carbonation and chloride resistance was comparable to that of reference concrete. RC showed to be a very promising eco-efficient supplementary cementitious material. Concrete with 100% RC presented similar to higher durability than reference concrete.
Durability performance of thermoactivated recycled cement concrete
https://orcid.org/0000-0003-1546-9197
Abstract This paper characterises the durability of concrete produced with thermoactivated recycled cement (RC) obtained from waste cement paste or the cementitious fraction of waste concrete. The durability of concrete produced with 5–100% RC and water/binder ratios of 0.35–0.65 was assessed through capillary absorption, oxygen permeability, rapid chloride migration and carbonation resistance tests. Overall, RC thermoactivated at 650 °C showed high rehydration capacity and effectively improved the durability properties of concrete compared to the same non-treated waste materials. Moreover, concretes with up to 100% RC reached comparable durability to that of reference concretes of equal w/b.
Highlights The durability of concrete with thermoactivated recycled cement (RC) was assessed. The effective rehydration of RC promoted the microstructure refinement. The carbonation and chloride resistance was comparable to that of reference concrete. RC showed to be a very promising eco-efficient supplementary cementitious material. Concrete with 100% RC presented similar to higher durability than reference concrete.
Durability performance of thermoactivated recycled cement concrete
Carriço, Ana (Autor:in) / Real, Sofia (Autor:in) / Bogas, José Alexandre (Autor:in)
19.09.2021
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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