After many years of micro-earthquakes in the Groningen area (the Netherlands) resulting from the production of shale gas by hydraulic fracturing (fracking), a new retrofitting method has been developed and experimentally assessed to increase the seismic resistance of houses built with masonry cavity walls. The three-years research aimed at the following main targets: 1. Development of a proper mix design able to provide Fiber Reinforced Mortar (FRM) compressive and tensile mechanical properties suitable for its employment as a retrofitting material in seismic design. Particular attention has been also devoted to the insulating properties of FRM in order to reduce thermal energy consumption of existing masonry cavity wall buildings; 2. Study of the long-term behavior to verify humidity transfer with severe environmental parameters (thermal shock, heavy rains, icing-thaw) and mechanical-parameters stability; 3. Definition of correct method statement for the full-scale implementation of the proposed retrofitting technique.
A method for strengthening and thermal-insulating cavity walls with Fiber Reinforced Mortar: the case of Groningen
IAVARONE, FABIOLA;Sara Lucchini;Luca Facconi;Antonio Conforti;Giovanni Plizzari
2018-01-01
Abstract
After many years of micro-earthquakes in the Groningen area (the Netherlands) resulting from the production of shale gas by hydraulic fracturing (fracking), a new retrofitting method has been developed and experimentally assessed to increase the seismic resistance of houses built with masonry cavity walls. The three-years research aimed at the following main targets: 1. Development of a proper mix design able to provide Fiber Reinforced Mortar (FRM) compressive and tensile mechanical properties suitable for its employment as a retrofitting material in seismic design. Particular attention has been also devoted to the insulating properties of FRM in order to reduce thermal energy consumption of existing masonry cavity wall buildings; 2. Study of the long-term behavior to verify humidity transfer with severe environmental parameters (thermal shock, heavy rains, icing-thaw) and mechanical-parameters stability; 3. Definition of correct method statement for the full-scale implementation of the proposed retrofitting technique.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
