{"id":2156,"date":"2026-03-20T08:25:23","date_gmt":"2026-03-20T00:25:23","guid":{"rendered":"https:\/\/jtlcnc.com\/?p=2156"},"modified":"2026-03-20T08:25:25","modified_gmt":"2026-03-20T00:25:25","slug":"how-to-determine-if-a-granite-platform-is-damp","status":"publish","type":"post","link":"https:\/\/jtlcnc.com\/fr\/2026\/03\/20\/how-to-determine-if-a-granite-platform-is-damp\/","title":{"rendered":"Comment d\u00e9terminer si une plate-forme en granit est humide ?"},"content":{"rendered":"

I. Inspecter l'apparence (le plus intuitif)
Des traces d'eau ou des taches d'humidit\u00e9 apparaissent \u00e0 la surface.
Les couleurs locales s'assombrissent, se ternissent ou se marbrent, ce qui les diff\u00e9rencie nettement des zones s\u00e8ches.
Si les taches r\u00e9apparaissent peu de temps apr\u00e8s avoir \u00e9t\u00e9 essuy\u00e9es, cela indique un retour d'humidit\u00e9 interne.
Des taches de moisissure, du givre blanc ou des taches noires apparaissent.
Des taches noires, des duvets blancs ou des moisissures vertes p\u00e2les se d\u00e9veloppent sur les bords, les coins, le dos ou pr\u00e8s des trous de vis.
Des efflorescences de poudre blanche se forment dans les pores (efflorescence alcaline), ce qui indique une forte absorption d'humidit\u00e9.
Les c\u00f4t\u00e9s ou le fond sont humides et brillants.
Le fond ou les c\u00f4t\u00e9s de la plate-forme sont ternes et pr\u00e9sentent des reflets d'eau au toucher, ce qui est un signe typique d'absorption d'humidit\u00e9.<\/p>\n\n\n\n

II. Sentir la texture (m\u00e9thode la plus simple)
La surface est froide, collante ou humide.
Normalement, le granit sec est vieux et sec.
Lorsqu'il est humide, il est collant, froid et mouill\u00e9, et colle \u00e0 la main.
Presser avec un mouchoir sec ou un chiffon blanc.
Appuyez sur l'arri\u00e8re, les bords et les coins de la plate-forme pendant 10 secondes.
Si le tissu devient humide ou pr\u00e9sente des traces d'eau \u2192 Confirme l'absorption d'humidit\u00e9.<\/p>\n\n\n\n

III. Observer l'environnement et les sympt\u00f4mes (jugement auxiliaire)
Humidit\u00e9 de l'air \u00e9lev\u00e9e
Pluie continue, absence de d\u00e9shumidification dans l'atelier ou humidit\u00e9 remontant du sol \u2192 La plate-forme est probablement humide.
Humidit\u00e9 dans les supports inf\u00e9rieurs de la caisse en bois
Ouvrez la caisse en bois ou v\u00e9rifiez les pieds de support :
Si le bois pr\u00e9sente des gouttelettes d'eau, de la bu\u00e9e ou des moisissures \u2192 la plate-forme est certainement humide.
Stabilit\u00e9 soudaine de la pr\u00e9cision
La plan\u00e9it\u00e9, le parall\u00e9lisme se d\u00e9t\u00e9riorent sans raison, ou il y a un faux-rond excessif ; apr\u00e8s avoir exclu les contraintes, soup\u00e7onner une micro-expansion due \u00e0 l'humidit\u00e9.<\/p>\n\n\n\n

IV. Jugement pr\u00e9cis (adapt\u00e9 au contr\u00f4le de la qualit\u00e9 \/ \u00e0 l'acceptation)
Testeur d'humidit\u00e9 (humidim\u00e8tre pour pierres)
Tester le dos ou les c\u00f4t\u00e9s :
<2% : Noral et sec
2%-5% : L\u00e9g\u00e8rement humide<\/p>\n\n\n\n

\n

5% : Clairement humide
Comparaison des poids
Si une plate-forme de m\u00eame sp\u00e9cification est sensiblement plus lourde \u2192 Elle a absorb\u00e9 de l'eau<\/p>\n<\/blockquote>\n\n\n\n

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

I. Inspect Appearance (Most Intuitive)Water marks or damp stains appear on the surface.Local color darkens, becomeull, or mottles, looking significantly different from dry areas.If the stains reappear shortly after wiping dry, it indicates internal moisture return.Mold spots, white frost, or black ots appear.Black spots, white fuzz, or pale green mold grow on edges, corners, the…<\/p>","protected":false},"author":1,"featured_media":1570,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[35],"tags":[],"class_list":["post-2156","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"taxonomy_info":{"category":[{"value":35,"label":"NEWS"}]},"featured_image_src_large":["https:\/\/jtlcnc.com\/wp-content\/uploads\/2026\/01\/gongsisp1-1024x555.jpg",1024,555,true],"author_info":{"display_name":"jinxing6611@gmail.com","author_link":"https:\/\/jtlcnc.com\/fr\/author\/jtlcnc\/"},"comment_info":0,"category_info":[{"term_id":35,"name":"NEWS","slug":"news","term_group":0,"term_taxonomy_id":35,"taxonomy":"category","description":"","parent":0,"count":119,"filter":"raw","cat_ID":35,"category_count":119,"category_description":"","cat_name":"NEWS","category_nicename":"news","category_parent":0}],"tag_info":false,"_links":{"self":[{"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/posts\/2156","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/comments?post=2156"}],"version-history":[{"count":1,"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/posts\/2156\/revisions"}],"predecessor-version":[{"id":2159,"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/posts\/2156\/revisions\/2159"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/media\/1570"}],"wp:attachment":[{"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/media?parent=2156"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/categories?post=2156"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jtlcnc.com\/fr\/wp-json\/wp\/v2\/tags?post=2156"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}