MICROWAVE AND INDUCTION HEATING ON FIBRE-REINFORCED CEMENTITIOUS MATERIALS FOR THE DEMOLITION OF STRUCTURES

Nowadays, strengthening and refurbishing of existing structures on urban areas has gained interest in order to reduce costs by avoiding both the use of construction raw materials and the disposal of construction and demolition waste on landfill. Usually, existing structures need to be locally demolished in order to replace either the existing corroded reinforcement or strengthen the existing structure. Among all the existing demolition methods, microwave and induction heating have been proven as a good alternative to generate a local damage with little noise and dust production, which is a desirable feature when structures are in urban areas. Nevertheless, there is a lack of information about the behaviour of both damaging methods when steel fibre-reinforced concrete is involved.