{"id":32,"date":"2018-01-11T15:58:25","date_gmt":"2018-01-11T15:58:25","guid":{"rendered":"http:\/\/www.modihma2018.polimi.it\/?page_id=32"},"modified":"2018-02-02T11:27:47","modified_gmt":"2018-02-02T11:27:47","slug":"abstract","status":"publish","type":"page","link":"https:\/\/www.modihma2018.polimi.it\/?page_id=32","title":{"rendered":"abstract"},"content":{"rendered":"

Methods\u00a0<\/b>to prevent and reduce<\/b>\u00a0<\/b>dampness in masonry<\/b>\u00a0<\/span><\/h4>\n

Among the various methods and devices for reducing rising damp, the three most popular types applied for the conservation of historic buildings are: active electro osmosis system, physical or chemical barriers and electronic and electro-magnetic devices.\u00a0<\/span><\/p>\n

Electro-osmosis system and chemical barriers were devised in the seventies\u00a0and have been accurately tested and verified in the lab and in the field since their earliest application. In the recent times,\u00a0various electronic and electro-magnetic devices have been proposed and applied. However, so far, they lack sound research, scientific information and verification about their response, operating principles, effectiveness.\u00a0<\/span><\/p>\n

In the last\u00a0decades,\u00a0several\u00a0enterprises\u00a0\u00a0proposed the treatment of rising damp\u00a0\u00a0in buildings\u00a0by means of electronic\u00a0and electro-magnetic\u00a0devices.\u00a0Some of these methods\u00a0are particularly attractive because, despite the absence of the scientific literature, they\u00a0have the advantage of being\u00a0not destructive\u00a0and\u00a0easily\u00a0reversible. In addition, they are\u00a0not\u00a0more\u00a0expensive\u00a0than\u00a0traditional methods\u00a0to contrast rising damp,\u00a0e.g.\u00a0insertion\u00a0waterproof barriers in the masonry, excavation of tunnels\u00a0around\u00a0the building and crawling spaces beneath the ground level floor, removal of damaged plaster and\u00a0re-plastering with\u00a0macro-porous\u00a0mortars. Therefore, the application of these\u00a0new\u00a0methods\u00a0appears to\u00a0be\u00a0very attractive and their use competitive with traditional methods.\u00a0\u00a0<\/span><\/p>\n

A general problem observed in the practice is given by the fact that usually the diagnosis of the presence of rising damp as well as the assessment of the effectiveness\u00a0 of the intervention is carried out by\u00a0the\u00a0same\u00a0manufactures\u00a0and\/or sellers of\u00a0such\u00a0devices.\u00a0\u00a0The\u00a0moisture\u00a0content\u00a0in the walls\u00a0is measured with\u00a0\u00a0methodologies\u00a0not always respondent to sound procedures, as listed in EN 16682 (2017)\u00a0. An independent third party, e.g.\u00a0research institution,\u00a0is\u00a0rarely in charge of checking\u00a0the effectiveness of\u00a0such methods and compare them\u00a0with standard procedures.\u00a0<\/span><\/p>\n

\u00a0<\/span><\/p>\n

The purpose<\/strong> of the conference is to\u00a0make\u00a0the\u00a0state of\u00a0the\u00a0art of these applications after more than forty years of use, gathering experimental results, depicting pros and cons and\u00a0considering\u00a0their durability and the maintenance that is required to obtain the best results.\u00a0<\/span><\/p>\n

Finally, the conference\u00a0will verify the underlying theory, pinpoint limits and potentialities of the application of physical laws on which the methods are based.\u00a0\u00a0<\/span><\/p>\n

\u00a0<\/span><\/p>\n

 <\/p>\n

\u00a0<\/span><\/p>\n

\u00a0<\/span><\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Methods\u00a0to prevent and reduce\u00a0dampness in masonry\u00a0 Among the various methods and devices for reducing rising damp, the three most popular types applied for the conservation of historic buildings are: active electro osmosis system, physical or chemical barriers and electronic and electro-magnetic devices.\u00a0 Electro-osmosis system and chemical barriers were devised in the seventies\u00a0and have been accurately tested and verified in the lab and in the field […]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-32","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.modihma2018.polimi.it\/index.php?rest_route=\/wp\/v2\/pages\/32","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.modihma2018.polimi.it\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.modihma2018.polimi.it\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.modihma2018.polimi.it\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.modihma2018.polimi.it\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=32"}],"version-history":[{"count":7,"href":"https:\/\/www.modihma2018.polimi.it\/index.php?rest_route=\/wp\/v2\/pages\/32\/revisions"}],"predecessor-version":[{"id":403,"href":"https:\/\/www.modihma2018.polimi.it\/index.php?rest_route=\/wp\/v2\/pages\/32\/revisions\/403"}],"wp:attachment":[{"href":"https:\/\/www.modihma2018.polimi.it\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=32"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}