MEL-ROL LM<\/a>.<\/p>\nPour les applications horizontales avec des p\u00e9n\u00e9trations regroup\u00e9es, envisager l’emploi d’HYDRALASTIC 836. Avant d’appliquer HYDRALASTIC 836, pr\u00e9parer les surfaces des p\u00e9n\u00e9trations comme ci-dessus et fabriquer un cadre de 2 pi x 4 pi (0.6 x 1,2 m) afin de former un \u00ab\u00a0manchon de goudron\u00a0\u00bb destin\u00e9 \u00e0 recevoir HYDRALASTIC 836.<\/p>\n
Rapi\u00e8\u00e7age\u2026<\/strong> Avant de couler, inspecter la membrane pour d\u00e9celer la pr\u00e9sence de perforations ou de dommages. R\u00e9parer, si n\u00e9cessaire, avec HYDRALASTIC 836 et\/ou DETAIL FABRIC. (BEM ou MEL-ROL LIQUID MEMBRANE peuvent \u00eatre employ\u00e9s \u00e0 la place d’HYDRALASTIC 836.) De plus, s’assurer qu’il n’y a pas d’eau stagnante sur la membrane et que celle-ci a \u00e9t\u00e9 d\u00e9barrass\u00e9e des mat\u00e9riaux pouvant nuire \u00e0 l’adh\u00e9rence du b\u00e9ton \u00e0 la membrane.<\/p>\nApplications en dessous de dalles \u2026<\/strong> Se r\u00e9f\u00e9rer \u00e0 ACI 302.1R\u00a0: Chapitre 4 (Site Preparation and Placing Environment) pour la pr\u00e9paration en dessous du sol avant l’installation de PRECON.<\/p>\nPRECAUTIONS\/LIMITATIONS<\/strong><\/p>\nLe b\u00e9ton devrait \u00eatre coul\u00e9 dans les 60 jours suivant l\u2019installation de la membrane. Pour les installations en dessous de 4\u00b0C, contacter le service technique de W. R. MEADOWS. Lorsque des supports de barre sont utilis\u00e9s, choisir ceux avec une base plate. Il est de la responsabilit\u00e9 du concepteur autoris\u00e9 de d\u00e9terminer si PRECON convient comme barri\u00e8re contr\u00f4lant la vapeur sur la base des donn\u00e9es de perm\u00e9ance au COV publi\u00e9es selon le projet et la r\u00e9glementation gouvernementale. Il est sugg\u00e9r\u00e9 de suivre les bonnes pratiques de l\u2019industrie pour installer un syst\u00e8me de ventilation passive (convertible en active) ou fournir une ventilation active au-dessus de la membrane barri\u00e8re. Installer PRECON sur un sol propre afin d\u2019\u00e9viter le contact avec des contaminants liquides.<\/p>\n
NUM\u00c9RO ET TITRE DE LA <\/strong>SP\u00c9CIFICATION <\/strong><\/p>\n07 13 00\u00a0: Imperm\u00e9abilisation avec feuilles<\/p>\n
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DONN\u00c9ES TECHNIQUES<\/strong><\/p>\n\n\n\nPropri\u00e9t\u00e9<\/strong><\/td>\nM\u00e9thode d\u2019essai<\/strong><\/td>\nR\u00e9sultats avec PRECON<\/strong><\/td>\n<\/tr>\n\n| \u00c9paisseur<\/td>\n | ASTM D1000<\/td>\n | 1,85 mm
\n(73 milli\u00e8mes)<\/td>\n<\/tr>\n | \n| Flexibilit\u00e9 \u00e0 basse temp\u00e9rature<\/td>\n | ASTM D1970, 180\u00b0 @ -28.9\u00b0 C<\/td>\n | R\u00e9ussi<\/td>\n<\/tr>\n | \n| R\u00e9sistance \u00e0 la pression hydrostatique<\/td>\n | ASTM D5385-93<\/td>\n | 70 m\u00a0 (230 pi)<\/td>\n<\/tr>\n | \n| Allongement, membrane polym\u00e8re<\/td>\n | ASTM D412-06<\/td>\n | > 400%<\/td>\n<\/tr>\n | \n| R\u00e9sistance \u00e0 la traction, film<\/td>\n | ASTM D882<\/td>\n | 63,4 MPa (9200 lb\/po2<\/sup>)<\/td>\n<\/tr>\n\n| Cycle de fissuration<\/td>\n | ASTM C836 @ -26\u00b0C<\/td>\n | R\u00e9ussi<\/td>\n<\/tr>\n | \n| R\u00e9sistance \u00e0 la perforation<\/td>\n | ASTM E154<\/td>\n | > 934 N (> 210 lb)<\/td>\n<\/tr>\n | \n| R\u00e9sistance au d\u00e9collement du b\u00e9ton<\/td>\n | ASTM D903<\/td>\n | 1754 N\/m (10 lb\/po)<\/td>\n<\/tr>\n | \n| R\u00e9sistance au d\u00e9collement des raccords<\/td>\n | ASTM D1876<\/td>\n | 0,97 N\/mm (5,60 lb\/po)<\/td>\n<\/tr>\n | \n| Transmission de la vapeur d\u2019eau<\/td>\n | ASTM E96B<\/td>\n | 0,006 perm
\n(0,041 g\/m2<\/sup>\/24h) (0,0024 grain\/pi2<\/sup>\/h)<\/td>\n<\/tr>\n\n| R\u00e9sistance aux champignons du sol<\/td>\n | GSA-PBS 07115 \u2013 16 semaines<\/td>\n | Aucun effet<\/td>\n<\/tr>\n | \n| Transmission du radon (m\/s)<\/td>\n | K124\/02\/95<\/td>\n | < 3,0 x 10-9<\/sup><\/td>\n<\/tr>\n\nCoefficient de radon (m2<\/sup>\/s)<\/td>\n| K124\/02\/95<\/td>\n | < 5,6 x 10-12<\/sup><\/td>\n<\/tr>\n\nCoefficient de diffusion du gaz (m2<\/sup>\/s)<\/td>\n| ASTM E96, Proc\u00e9dure B Modifi\u00e9 (Solvant uniquement \u2013 pas d\u2019eau)<\/td>\n | Puret\u00e9 du benz\u00e8ne >99%
\n1,24 x 10-14<\/td>\n<\/tr>\n | \nPuret\u00e9 du tolu\u00e8ne >99%
\n8,24 x 10-15<\/sup><\/td>\n<\/tr>\n\nPuret\u00e9 de l\u2019\u00e9hylbenz\u00e8ne >99%
\n1,24 x 10-15<\/sup><\/td>\n<\/tr>\n\nPuret\u00e9 du trichlor\u00e9thyl\u00e8ne >99%
\n1,90 x 10-14<\/sup><\/td>\n<\/tr>\n\nPuret\u00e9 du t\u00e9trachloro\u00e9thyl\u00e8ne >99% \u00a0(PCE\/Perc)
\n3,21 x 10-15<\/sup><\/td>\n<\/tr>\n\nPuret\u00e9 du xyl\u00e8ne >99%
\n1,53 x 10-15<\/sup><\/td>\n<\/tr>\n\nTaux de transmission du m\u00e9thane, (mL\/day\u00b7m\u00b2\u00b7atm)
\nCond. 24h \u00e0 74\u00b14\u00b0F et 50\u00b110%HR;
\nGas = M\u00e9thane (puret\u00e9 de 99,99%);
\nEssai \u00e0 74\u00b14\u00b0F:<\/td>\n | ASTM D1434<\/td>\n | 43<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n 2025-10<\/p>\n ![\"\"](\"https:\/\/can.wrmeadows.com\/pics\/greenstripefoot.jpg\") <\/p>\n
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PRECON est une membrane en feuille composite compos\u00e9e d\u2019un nontiss\u00e9, d\u2019une membrane \u00e9lastom\u00e8re et du NOYAU PLASMATIQUE brevet\u00e9 exclusif \u00e0 W. R. MEADOWS (U.S. Patent No. 7,179,761). Le NOYAU PLASMATIQUE est une matrice \u00e0 sept couches con\u00e7ue pour \u00eatre robuste et fournir le taux de transmission de la vapeur d\u2019eau le plus faible du march\u00e9. Une fois le b\u00e9ton coul\u00e9 contre PRECON et m\u00fbri, un ancrage m\u00e9canique se cr\u00e9e qui fixe le b\u00e9ton \u00e0 la membrane.<\/p>\n","protected":false},"author":1,"featured_media":60830,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"full-width-content","footnotes":""},"categories":[17859,163,228],"tags":[],"class_list":{"0":"post-2776","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-building-envelope-fr-ca","8":"category-sheet-fr-ca","9":"category-vapor-barriers-fr-ca","10":"entry"},"acf":[],"yoast_head":"\n PRECON (Fran\u00e7ais) - Membrane imperm\u00e9abilisante pr\u00e9-appliqu\u00e9 pour dessous de dalle - W. R. Meadows Canada<\/title>\n<meta name=\"description\" content=\"PRECON est une membrane en feuille composite compos\u00e9e d\u2019un nontiss\u00e9, d\u2019une membrane \u00e9lastom\u00e8re et du NOYAU PLASMATIQUE brevet\u00e9 exclusif \u00e0 W. R. MEADOWS (U.S. Patent No. 7,179,761). Le NOYAU PLASMATIQUE est une matrice \u00e0 sept couches con\u00e7ue pour \u00eatre robuste et fournir le taux de transmission de la vapeur d\u2019eau le plus faible du march\u00e9. Une fois le b\u00e9ton coul\u00e9 contre PRECON et m\u00fbri, un ancrage m\u00e9canique se cr\u00e9e qui fixe le b\u00e9ton \u00e0 la membrane.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/can.wrmeadows.com\/fr-ca\/mel-rol-precon-francais\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PRECON (Fran\u00e7ais)\" \/>\n<meta property=\"og:description\" content=\"PRECON est une membrane en feuille composite compos\u00e9e d\u2019un nontiss\u00e9, d\u2019une membrane \u00e9lastom\u00e8re et du NOYAU PLASMATIQUE brevet\u00e9 exclusif \u00e0 W. R. MEADOWS (U.S. Patent No. 7,179,761). Le NOYAU PLASMATIQUE est une matrice \u00e0 sept couches con\u00e7ue pour \u00eatre robuste et fournir le taux de transmission de la vapeur d\u2019eau le plus faible du march\u00e9. Une fois le b\u00e9ton coul\u00e9 contre PRECON et m\u00fbri, un ancrage m\u00e9canique se cr\u00e9e qui fixe le b\u00e9ton \u00e0 la membrane.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/can.wrmeadows.com\/fr-ca\/mel-rol-precon-francais\/\" \/>\n<meta property=\"og:site_name\" content=\"W. R. Meadows Canada\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/wrmeadows\" \/>\n<meta property=\"article:published_time\" content=\"2012-03-03T15:33:38+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-10-08T15:00:19+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/can.wrmeadows.com\/wp-content\/uploads\/Precon-Pre-Applied-Underslab-Waterproofing-Membrane.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"992\" \/>\n\t<meta property=\"og:image:height\" content=\"742\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"W. R. 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