{"id":7706,"date":"2023-06-07T15:40:35","date_gmt":"2023-06-07T14:40:35","guid":{"rendered":"https:\/\/www.ecofirma.ci\/?p=7706"},"modified":"2026-04-24T18:20:44","modified_gmt":"2026-04-24T18:20:44","slug":"a-importancia-de-considerar-a-agressividade-da-agua","status":"publish","type":"post","link":"https:\/\/www.ecofirma.ci\/en\/a-importancia-de-considerar-a-agressividade-da-agua\/","title":{"rendered":"The importance of considering the aggressiveness of the water when choosing the most suitable coating for concrete tanks"},"content":{"rendered":"\t\t
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L\u2019importance de prendre en compte l\u2019agressivit\u00e9 de l\u2019eau dans le choix du rev\u00eatement le plus adapt\u00e9 pour les r\u00e9servoirs en b\u00e9ton<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Le b\u00e9ton est un mat\u00e9riau largement utilis\u00e9 dans la construction de r\u00e9servoirs d\u2019eau. Cependant, lorsque l\u2019eau pr\u00e9sente des caract\u00e9ristiques chimiques agressives, telles qu\u2019un pH faible et une faible min\u00e9ralisation, des effets n\u00e9gatifs peuvent appara\u00eetre en raison du contact direct avec l\u2019eau stock\u00e9e.<\/p>

Le b\u00e9ton est utilis\u00e9 pour enrober l\u2019acier d\u2019armature qui, gr\u00e2ce \u00e0 son pH \u00e9lev\u00e9, prot\u00e8ge et passivise l\u2019acier, emp\u00eachant ainsi son oxydation. Toutefois, la corrosion des armatures peut survenir si l\u2019oxyg\u00e8ne atteint l\u2019acier, notamment sous l\u2019effet de la carbonatation, li\u00e9e \u00e0 la dissolution du b\u00e9ton, ph\u00e9nom\u00e8ne g\u00e9n\u00e9ralement associ\u00e9 aux eaux agressives.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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INDICES DE RYZNAR ET DE LANGELIER<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Lors du choix du mortier d\u2019imperm\u00e9abilisation appropri\u00e9 pour prot\u00e9ger les structures en b\u00e9ton arm\u00e9 destin\u00e9es au stockage de l\u2019eau, il est essentiel de prendre en compte l\u2019agressivit\u00e9 de l\u2019eau concern\u00e9e.<\/p>

Plusieurs outils permettent d\u2019\u00e9valuer cette agressivit\u00e9, notamment l\u2019indice de Ryznar et l\u2019indice de saturation de Langelier. Ces calculs sont fondamentaux pour d\u00e9terminer le type de mortier d\u2019imperm\u00e9abilisation \u00e0 utiliser.<\/p>

L\u2019indice de Ryznar mesure l\u2019agressivit\u00e9 de l\u2019eau en relation avec la formation de d\u00e9p\u00f4ts calcaires. Plus l\u2019indice est \u00e9lev\u00e9, moins l\u2019eau a tendance \u00e0 former des incrustations. En revanche, l\u2019indice de saturation de Langelier mesure la tendance de l\u2019eau \u00e0 dissoudre les min\u00e9raux, en particulier le carbonate de calcium.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Pour effectuer ces calculs, il est possible d\u2019utiliser des outils en ligne tels que ceux propos\u00e9s par Lenntech.<\/p>

L\u2019indice de Ryznar peut \u00eatre calcul\u00e9 \u00e0 l\u2019aide de l\u2019outil disponible sur :
https:\/\/www.lenntech.com\/calculators\/ryznar\/index\/ryznar.htm<\/p>

L\u2019indice de saturation de Langelier peut \u00eatre calcul\u00e9 via :
https:\/\/www.lenntech.com\/calculators\/langelier\/index\/langelier.htm<\/p>

Comme mentionn\u00e9 dans l\u2019article
\u00ab Agressivit\u00e9 et corrosivit\u00e9 des eaux en terrains cristallins du Nord du Portugal \u2013 La n\u00e9cessit\u00e9 d\u2019utiliser des rev\u00eatements imperm\u00e9abilisants \u00bb, \u00e9crit par Carlos Pinto,<\/p>

afin d\u2019\u00e9viter les processus de d\u00e9gradation des structures r\u00e9sultant du contact avec des eaux agressives, il est recommand\u00e9 d\u2019utiliser des rev\u00eatements imperm\u00e9abilisants adapt\u00e9s pour prolonger la dur\u00e9e de vie des structures et pr\u00e9venir des probl\u00e8mes tels que la fissuration, la d\u00e9gradation du b\u00e9ton et la corrosion des armatures.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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ECOFIRMA est une entreprise sp\u00e9cialis\u00e9e dans la r\u00e9paration, la r\u00e9habilitation et l\u2019imperm\u00e9abilisation des structures en construction, en utilisant des produits d\u2019imperm\u00e9abilisation \u00e0 base de compos\u00e9s chimiques aux propri\u00e9t\u00e9s qui, en association avec des ciments et des agr\u00e9gats s\u00e9lectionn\u00e9s, permettent de colmater les pores du b\u00e9ton et de pr\u00e9venir l\u2019action agressive de certaines eaux.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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L\u2019imperm\u00e9abilisation est devenue une composante essentielle de tout projet de construction aujourd\u2019hui. Les surfaces expos\u00e9es \u00e0 l\u2019eau, telles que les r\u00e9servoirs, doivent \u00eatre prot\u00e9g\u00e9es de mani\u00e8re ad\u00e9quate afin de garantir la durabilit\u00e9 de la structure.<\/p>

ECOFIRMA dispose de la capacit\u00e9 technique n\u00e9cessaire pour proposer des solutions assurant une durabilit\u00e9 sup\u00e9rieure \u00e0 celle traditionnellement obtenue pour ce type d\u2019ouvrages.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Lors du choix du mortier d\u2019imperm\u00e9abilisation appropri\u00e9 pour prot\u00e9ger les structures en b\u00e9ton arm\u00e9 destin\u00e9es au stockage de l\u2019eau, il est essentiel de prendre en compte l\u2019agressivit\u00e9 de l\u2019eau concern\u00e9e.<\/p>

Plusieurs outils permettent d\u2019\u00e9valuer cette agressivit\u00e9, tels que l\u2019indice de Ryznar et l\u2019indice de saturation de Langelier. Ces calculs sont essentiels pour d\u00e9terminer le type de mortier d\u2019imperm\u00e9abilisation \u00e0 utiliser.<\/p>

L\u2019indice de Ryznar est une mesure de l\u2019agressivit\u00e9 de l\u2019eau vis-\u00e0-vis de la formation d\u2019incrustations. Plus l\u2019indice est \u00e9lev\u00e9, plus la tendance de l\u2019eau \u00e0 former des d\u00e9p\u00f4ts est faible. En revanche, l\u2019indice de saturation de Langelier mesure la tendance de l\u2019eau \u00e0 dissoudre les min\u00e9raux, notamment le carbonate de calcium.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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CARACT\u00c9RISATION DE L\u2019EAU<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Pour appliquer les indices de Ryznar et de Langelier, il est n\u00e9cessaire de r\u00e9aliser des analyses de l\u2019eau qui sera utilis\u00e9e dans le r\u00e9servoir.<\/p>

Ces analyses incluent la mesure du pH, de l\u2019alcalinit\u00e9, de la duret\u00e9, des chlorures, des sulfates, entre autres param\u00e8tres pouvant influencer l\u2019agressivit\u00e9 de l\u2019eau vis-\u00e0-vis du b\u00e9ton.<\/p>

Sur la base de ces r\u00e9sultats, il est possible de s\u00e9lectionner le mortier d\u2019imperm\u00e9abilisation le plus adapt\u00e9 \u00e0 chaque situation, garantissant ainsi la protection de la structure contre l\u2019action corrosive de l\u2019eau et augmentant sa durabilit\u00e9.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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CHOIX APPROPRI\u00c9 DU SYST\u00c8ME D\u2019IMPERM\u00c9ABILISATION<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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ECOFIRMA est une entreprise qui prend en compte les sp\u00e9cificit\u00e9s de l\u2019eau dans chaque site o\u00f9 elle intervient.<\/p>

Il est important de souligner que l\u2019eau peut varier dans sa composition et ses propri\u00e9t\u00e9s en fonction de la g\u00e9ographie, de la g\u00e9ologie locale et de l\u2019usage qui en est fait.<\/p>

Par exemple, l\u2019eau dans une r\u00e9gion c\u00f4ti\u00e8re peut pr\u00e9senter une concentration plus \u00e9lev\u00e9e en chlorures en raison de l\u2019influence marine, tandis que l\u2019eau dans une zone industrielle peut contenir des niveaux \u00e9lev\u00e9s de m\u00e9taux lourds.<\/p>

Sur la base de ces \u00e9l\u00e9ments, ECOFIRMA adopte une approche personnalis\u00e9e pour chaque projet, en r\u00e9alisant des analyses d\u00e9taill\u00e9es de l\u2019eau et en s\u00e9lectionnant les solutions d\u2019imperm\u00e9abilisation les plus adapt\u00e9es afin de prot\u00e9ger la structure contre les effets de l\u2019eau concern\u00e9e.<\/p>

Ainsi, il est possible de garantir la durabilit\u00e9 de la structure et de pr\u00e9venir d\u2019\u00e9ventuels probl\u00e8mes futurs.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Understand how the aggressiveness of water influences the choice of coatings for concrete tanks and how to guarantee their durability.<\/p>","protected":false},"author":5,"featured_media":7729,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[97,93,92],"tags":[],"class_list":["post-7706","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-impermeabilizacoes","category-manutencao","category-reservatorios"],"yoast_head":"\nL\u2019importance de prendre en compte l\u2019agressivit\u00e9 de l\u2019eau dans le choix du rev\u00eatement le plus adapt\u00e9 pour les r\u00e9servoirs en b\u00e9ton - ECOFIRMA C\u00f4te D'Ivoire<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ecofirma.ci\/en\/a-importancia-de-considerar-a-agressividade-da-agua\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"L\u2019importance de prendre en compte l\u2019agressivit\u00e9 de l\u2019eau dans le choix du rev\u00eatement le plus adapt\u00e9 pour les r\u00e9servoirs en b\u00e9ton - 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