{"id":16298,"date":"2021-07-15T10:13:00","date_gmt":"2021-07-15T10:13:00","guid":{"rendered":"https:\/\/cit.upc.edu\/?post_type=portfolio&p=16298"},"modified":"2026-10-21T15:51:40","modified_gmt":"2026-10-21T13:51:40","slug":"materials-projectats-lleugers-per-reforcar-rehabilitar-edificacions-estructures-patrimoni-urba","status":"publish","type":"portfolio","link":"https:\/\/cit.upc.edu\/ca\/portfolio-item\/materials-projectats-lleugers-per-reforcar-rehabilitar-edificacions-estructures-patrimoni-urba\/","title":{"rendered":"Materials projectats lleugers per refor\u00e7ar i rehabilitar edificacions i estructures de patrimoni urb\u00e0"},"content":{"rendered":"\n

15\/07\/2021
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Investigadors dels grups de recerca Enginyeria de la Construcci\u00f3 (EC), Grup d\u2019Arquitectura i Tecnologia (GAT), Laboratori d\u2019Innovaci\u00f3 i Tecnologia en l\u2019Arquitectura (LiTA) i Materials de Construcci\u00f3 i Carreteres (MATCAR) han treballat en una metodologia per millorar la gesti\u00f3 del patrimoni urb\u00e0, abordant aspectes essencials en el proc\u00e9s de refor\u00e7ament o reparaci\u00f3, aix\u00ed com durant la seva vida \u00fatil.<\/h4>
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Una de les opcions m\u00e9s habituals per refor\u00e7ar els elements estructurals \u00e9s la projecci\u00f3 de materials de cimentaci\u00f3, els quals formen una capa adherida a l\u2019element estructural refor\u00e7at. Tot i el gran potencial d\u2019aquesta t\u00e8cnica per a la rehabilitaci\u00f3, el seu \u00fas est\u00e8s i eficient t\u00e9 limitacions. MAPPU pret\u00e9n millorar el coneixement existent dels mitjans materials, t\u00e8cnics i de c\u00e0lcul estructural necessaris per dur a terme refor\u00e7os mitjan\u00e7ant projecci\u00f3 en una \u00fanica capa que responguin de manera segura a tots els requeriments plantejats.

El salt tecnol\u00f2gic que MAPPU ha aconseguit en el m\u00e8tode de refor\u00e7 mitjan\u00e7ant projecci\u00f3 es fonamenta en quatre vectors. En primer lloc, la millora dels materials emprats mitjan\u00e7ant l\u2019\u00fas de barreges projectades estructurals lleugeres, amb baixa permeabilitat, retracci\u00f3 compensada i m\u00e9s sostenibles que permetin una aplicaci\u00f3 m\u00e9s f\u00e0cil i millorin el refor\u00e7 resultant. En segon lloc, a trav\u00e9s del desenvolupament de models de c\u00e0lcul estructural que tinguin en compte les especificitats del material projectat (lleuger o de densitat normal) i que permetin un disseny optimitzat pel que fa a adher\u00e8ncia a armadures i flu\u00e8ncia, \u00e9s a dir l\u2019augment de deformaci\u00f3 de la capa projectada a c\u00e0rrega constant, que a la llarga comportar\u00e0 un augment de la c\u00e0rrega absorbida per l\u2019estructura refor\u00e7ada. En tercer lloc, a trav\u00e9s de la millora de les t\u00e8cniques de control de qualitat emprades per avaluar el comportament del material projectat a l\u2019inici de la seva vida \u00fatil. Finalment, a partir de la proposta de models de durabilitat integrals que permetin dissenyar i analitzar la vida \u00fatil de l\u2019estructura considerant tant el refor\u00e7 com l\u2019estructura ja existents.
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Com a resultat de tot aix\u00f2, s\u2019ha aconseguit reduir els riscos possibles a causa de la degradaci\u00f3 dels materials i s\u2019ha augmentat la seguretat de les estructures. Tamb\u00e9 s\u2019han proposat nous models que avui encara no estan disponibles en normatives per al disseny estructural de la capa projectada. Amb aix\u00f2, s\u2019ampliar\u00e0 el camp d\u2019aplicaci\u00f3 de la t\u00e8cnica, es reduiran les despeses amb materials i el consum de recursos naturals.

MAPPU ha tingut una durada de quatre anys (de desembre de 2016 a desembre de 2020), forma part del marc del Programa Estatal d\u2019R+D+i orientat a Retos de la Societat del MINECO i ha comptat amb un pressupost de 96.800 euros.
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Tecnologia<\/h5>

Urbanisme i Sostenibilitat<\/a>
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Construcci\u00f3<\/a>
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Vols saber m\u00e9s?<\/h5>
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Investigadors dels grups de recerca Enginyeria de la Construcci\u00f3 (EC), Grup d\u2019Arquitectura i Tecnologia (GAT), Laboratori d\u2019Innovaci\u00f3 i Tecnologia en l\u2019Arquitectura (LiTA) i Materials de Construcci\u00f3 i Carreteres (MATCAR) han treballat en una metodologia per millorar la gesti\u00f3 del patrimoni urb\u00e0.<\/p>\n","protected":false},"author":5,"featured_media":32414,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","meta":[],"portfolio-types":[385,909],"class_list":["post-16298","portfolio","type-portfolio","status-publish","has-post-thumbnail","hentry","portfolio-types-construccio","portfolio-types-tecnologias-de-urbanismo-y-sostenibilidad-ca"],"yoast_head":"\nMaterials projectats lleugers per rehabilitar patrimoni urb\u00e0 - CIT UPC<\/title>\n<meta name=\"description\" content=\"Materials projectats lleugers per rehabilitar patrimoni urb\u00e0. 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