In the last decades, the use of steel slag as binder in supplementary cementitious materials (SCMs) emerged as a valuable solution to re-use by-product of the steel making industry, and to reduce the use of cement. Moreover, steel slag-based mortar and concrete have proven to be suitable materials for mineral carbon sequestration, capable of permanently storing CO: during conditioning in environment rich in carbon dioxide. The study aims at investigating the efficiency of thecarbonation of steel slag mortar cylinders by means of thermogravimetric analysis and mechanical compression tests. The results show a high CO: reactivity of the steel slag mortar capable of storing 69 kg of CO: per ton of binder and a remarkable improvement of the mechanical properties resulting in a compressive strength of 48 VIPa. comparable to that obtained using conventional clinker cement.
Carbon sequestration in Steel Slag-based mortar: investigation of chemical composition and mechanical properties
Belli A;
2021-01-01
Abstract
In the last decades, the use of steel slag as binder in supplementary cementitious materials (SCMs) emerged as a valuable solution to re-use by-product of the steel making industry, and to reduce the use of cement. Moreover, steel slag-based mortar and concrete have proven to be suitable materials for mineral carbon sequestration, capable of permanently storing CO: during conditioning in environment rich in carbon dioxide. The study aims at investigating the efficiency of thecarbonation of steel slag mortar cylinders by means of thermogravimetric analysis and mechanical compression tests. The results show a high CO: reactivity of the steel slag mortar capable of storing 69 kg of CO: per ton of binder and a remarkable improvement of the mechanical properties resulting in a compressive strength of 48 VIPa. comparable to that obtained using conventional clinker cement.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
