{"id":12656,"date":"2023-04-07T10:20:31","date_gmt":"2023-04-07T08:20:31","guid":{"rendered":"https:\/\/nature-et-developpement.com\/logisain78\/produit\/pouzzolane-granulat-0-15mm\/"},"modified":"2025-10-23T21:45:10","modified_gmt":"2025-10-23T19:45:10","slug":"pouzzolane-granulat","status":"publish","type":"product","link":"https:\/\/nature-et-developpement.com\/logisain-78\/produit\/pouzzolane-granulat\/","title":{"rendered":"POUZZOLANE Granulat de Saint Astier"},"content":{"rendered":"

Pouzzolane granulat de Saint-Astier \u2013 Granulat min\u00e9ral pour b\u00e9ton et mortier pouzzolanique<\/h2>\n

Un granulat technique pour b\u00e9tons et enduits \u00e0 la chaux pouzzolanique<\/h3>\n

La pouzzolane de Saint-Astier<\/a> est un granulat volcanique 100 % min\u00e9ral utilis\u00e9 pour am\u00e9liorer les performances m\u00e9caniques, thermiques et hygrom\u00e9triques des b\u00e9tons et enduits formul\u00e9s \u00e0 la chaux. Issu d\u2019une roche naturellement r\u00e9active, ce granulat optimise la durabilit\u00e9 et la r\u00e9sistance des mortiers dans le temps.<\/p>\n

Pourquoi choisir une pouzzolane ?<\/h3>\n

La pouzzolane est reconnue pour ses propri\u00e9t\u00e9s hydrauliques latentes : associ\u00e9e \u00e0 la chaux, elle forme des silicates de calcium \u00e0 haute densit\u00e9. Cela conf\u00e8re aux mortiers une meilleure r\u00e9sistance \u00e0 l\u2019humidit\u00e9, une faible conductivit\u00e9 thermique et une grande stabilit\u00e9 dimensionnelle.<\/p>\n

Applications courantes<\/h3>\n
    \n
  • B\u00e9ton pouzzolanique pour planchers, murs ou vo\u00fbtes<\/li>\n
  • Enduits isolants \u00e0 la chaux pour fa\u00e7ades et int\u00e9rieurs<\/li>\n
  • Mortiers techniques en r\u00e9novation de b\u00e2ti ancien<\/li>\n
  • Sous-couches correctrices sur supports froids<\/li>\n<\/ul>\n

    Caract\u00e9ristiques techniques<\/h3>\n
      \n
    • Origine : carri\u00e8re Saint-Astier<\/li>\n
    • Nature : roche volcanique broy\u00e9e<\/li>\n
    • Granulom\u00e9trie : 0\/3 mm<\/li>\n
    • Poids sp\u00e9cifique : environ 950 kg\/m\u00b3<\/li>\n
    • Porosit\u00e9 \u00e9lev\u00e9e, faible densit\u00e9 thermique<\/li>\n
    • Compatible avec les chaux naturelles NHL<\/li>\n<\/ul>\n

      Avantages du granulat pouzzolanique<\/h3>\n
        \n
      • Am\u00e9liore la durabilit\u00e9 des mortiers \u00e0 la chaux<\/li>\n
      • Stabilit\u00e9 accrue en milieu humide<\/li>\n
      • Permet la formulation de b\u00e9tons l\u00e9gers respirants<\/li>\n
      • Favorise la correction thermique sans doublage<\/li>\n
      • Adapt\u00e9 aux exigences des b\u00e2timents anciens<\/li>\n<\/ul>\n

        Pr\u00e9conisations de mise en \u0153uvre<\/h3>\n

        La pouzzolane s\u2019utilise en substitution partielle ou totale des sables dans une formulation chaux-granulat. Elle se m\u00e9lange en b\u00e9tonni\u00e8re ou \u00e0 l\u2019aide d\u2019un malaxeur. Respecter les dosages et la courbe granulom\u00e9trique recommand\u00e9s. Utilisable en chape, enduit, ou b\u00e9ton projet\u00e9.<\/p>\n

        Conditionnement<\/h3>\n

        Disponible en sac de 25 kg, big bag ou vrac. Livraison possible sur chantier, en palette ou en vrac (sur demande).<\/p>\n

        Questions fr\u00e9quentes sur la pouzzolane et les b\u00e9tons pouzzolaniques<\/h2>\n

        Qu\u2019est-ce qu\u2019une pouzzolane ?<\/h3>\n

        La pouzzolane est une roche volcanique broy\u00e9e qui, en pr\u00e9sence d\u2019eau et de chaux, d\u00e9veloppe une prise hydraulique lente mais durable. Elle est utilis\u00e9e depuis l\u2019Antiquit\u00e9 dans les mortiers pour am\u00e9liorer leur r\u00e9sistance et leur stabilit\u00e9 en environnement humide.<\/p>\n

        Qu\u2019est-ce qu\u2019un b\u00e9ton pouzzolanique ?<\/h3>\n

        Un b\u00e9ton pouzzolanique est un m\u00e9lange de chaux naturelle, de pouzzolane et \u00e9ventuellement de sable. Il offre une inertie thermique \u00e9lev\u00e9e, une faible conductivit\u00e9 et une bonne perspirance. Il convient aux sols, aux murs, et aux voutes dans le cadre de r\u00e9novations patrimoniales ou de constructions r\u00e9versibles.<\/p>\n

        Pourquoi utiliser un granulat pouzzolanique plut\u00f4t qu\u2019un sable classique ?<\/h3>\n

        Contrairement au sable, la pouzzolane n\u2019est pas neutre. Elle r\u00e9agit chimiquement avec la chaux pour former un liant plus r\u00e9sistant et plus stable. Elle am\u00e9liore la durabilit\u00e9 du m\u00e9lange, r\u00e9duit les risques de fissuration et renforce les performances thermiques et hygrom\u00e9triques du support.<\/p>\n

        Le granulat pouzzolanique est-il adapt\u00e9 aux applications int\u00e9rieures ?<\/h3>\n

        Oui. Il peut \u00eatre utilis\u00e9 pour formuler des enduits thermiques, des chapes all\u00e9g\u00e9es ou des b\u00e9tons de remplissage int\u00e9rieurs, en particulier dans les pi\u00e8ces \u00e0 parois froides. Il reste perspirant, ce qui limite la condensation et assure un meilleur confort int\u00e9rieur.<\/p>\n","protected":false},"excerpt":{"rendered":"

        D\u00e9couvrez une nouvelle solution pour r\u00e9aliser des b\u00e9tons pouzzolaniques de sol.<\/p>\n

        Les r\u00e9sistances m\u00e9caniques \u00e0 la compression d\u2019un dallage en b\u00e9ton pouzzolanique Saint-Astier sont d\u2019environ : \u00c0 28 jours = 3 MPa soit 30kg \/ cm\u00b2<\/strong>
        \n\"Entreprise<\/p>\n","protected":false},"featured_media":1000000107325,"template":"","meta":[],"product_brand":[2863],"product_cat":[295,472,2909,173],"product_tag":[4301],"class_list":{"0":"post-12656","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-saint-astier","7":"product_cat-accessoires-construction","8":"product_cat-adjuvants","9":"product_cat-demande-de-devis-uniquement-sans-prix","10":"product_cat-maconnerie","11":"product_tag-saint-astier","12":"product_shipping_class-sac-de-25kg","14":"first","15":"instock","16":"taxable","17":"shipping-taxable","18":"purchasable","19":"product-type-variable"},"yoast_head":"\nPOUZZOLANE Granulat de Saint Astier<\/title>\n<meta name=\"description\" content=\"D\u00e9couvrez une nouvelle solution pour r\u00e9aliser des b\u00e9tons de sol naturels. R\u00e9sistance m\u00e9canique \u00e0 la compression: (\u00e0 28 jours) 3 MPa soit 30kg\/cm\u00b2\" \/>\n<meta name=\"robots\" content=\"noindex, nofollow\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"POUZZOLANE Granulat de Saint Astier\" \/>\n<meta property=\"og:description\" content=\"D\u00e9couvrez une nouvelle solution pour r\u00e9aliser des b\u00e9tons de sol naturels. R\u00e9sistance m\u00e9canique \u00e0 la compression: (\u00e0 28 jours) 3 MPa soit 30kg\/cm\u00b2\" \/>\n<meta property=\"og:url\" content=\"https:\/\/nature-et-developpement.com\/logisain-78\/produit\/pouzzolane-granulat\/\" \/>\n<meta property=\"og:site_name\" content=\"LOGISAIN 78 \u2013 Magasin de mat\u00e9riaux biosourc\u00e9s\" \/>\n<meta property=\"article:modified_time\" content=\"2025-10-23T19:45:10+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/nature-et-developpement.com\\\/logisain-78\\\/produit\\\/pouzzolane-granulat\\\/\",\"url\":\"https:\\\/\\\/nature-et-developpement.com\\\/logisain-78\\\/produit\\\/pouzzolane-granulat\\\/\",\"name\":\"POUZZOLANE Granulat de Saint Astier\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/nature-et-developpement.com\\\/logisain-78\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/nature-et-developpement.com\\\/logisain-78\\\/produit\\\/pouzzolane-granulat\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/nature-et-developpement.com\\\/logisain-78\\\/produit\\\/pouzzolane-granulat\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/nature-et-developpement.com\\\/logisain-78\\\/wp-content\\\/uploads\\\/27954-POUZZOLANE-Granulat-015mm.jpg\",\"datePublished\":\"2023-04-07T08:20:31+00:00\",\"dateModified\":\"2025-10-23T19:45:10+00:00\",\"description\":\"D\u00e9couvrez une nouvelle solution pour r\u00e9aliser des b\u00e9tons de sol naturels. R\u00e9sistance m\u00e9canique \u00e0 la compression: (\u00e0 28 jours) 3 MPa soit 30kg\\\/cm\u00b2\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/nature-et-developpement.com\\\/logisain-78\\\/produit\\\/pouzzolane-granulat\\\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/nature-et-developpement.com\\\/logisain-78\\\/produit\\\/pouzzolane-granulat\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/nature-et-developpement.com\\\/logisain-78\\\/produit\\\/pouzzolane-granulat\\\/#primaryimage\",\"url\":\"https:\\\/\\\/nature-et-developpement.com\\\/logisain-78\\\/wp-content\\\/uploads\\\/27954-POUZZOLANE-Granulat-015mm.jpg\",\"contentUrl\":\"https:\\\/\\\/nature-et-developpement.com\\\/logisain-78\\\/wp-content\\\/uploads\\\/27954-POUZZOLANE-Granulat-015mm.jpg\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/nature-et-developpement.com\\\/logisain-78\\\/produit\\\/pouzzolane-granulat\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Accueil\",\"item\":\"https:\\\/\\\/nature-et-developpement.com\\\/logisain-78\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Produits\",\"item\":\"https:\\\/\\\/nature-et-developpement.com\\\/logisain-78\\\/shop\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Construction, cloison et fen\u00eatres\",\"item\":\"https:\\\/\\\/nature-et-developpement.com\\\/logisain-78\\\/produits\\\/construction\\\/\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Ma\u00e7onnerie\",\"item\":\"https:\\\/\\\/nature-et-developpement.com\\\/logisain-78\\\/produits\\\/construction\\\/maconnerie\\\/\"},{\"@type\":\"ListItem\",\"position\":5,\"name\":\"POUZZOLANE Granulat de Saint Astier\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/nature-et-developpement.com\\\/logisain-78\\\/#website\",\"url\":\"https:\\\/\\\/nature-et-developpement.com\\\/logisain-78\\\/\",\"name\":\"LOGISAIN 78 \u2013 Magasin de mat\u00e9riaux biosourc\u00e9s\",\"description\":\"Logisain 78 est membre du groupement Nature & D\u00e9veloppement\",\"publisher\":{\"@id\":\"https:\\\/\\\/nature-et-developpement.com\\\/logisain-78\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/nature-et-developpement.com\\\/logisain-78\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/nature-et-developpement.com\\\/logisain-78\\\/#organization\",\"name\":\"Logisain 78\",\"url\":\"https:\\\/\\\/nature-et-developpement.com\\\/logisain-78\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/nature-et-developpement.com\\\/logisain-78\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/nature-et-developpement.com\\\/logisain-78\\\/wp-content\\\/uploads\\\/sites\\\/5\\\/2021\\\/08\\\/logo-logisain.jpg\",\"contentUrl\":\"https:\\\/\\\/nature-et-developpement.com\\\/logisain-78\\\/wp-content\\\/uploads\\\/sites\\\/5\\\/2021\\\/08\\\/logo-logisain.jpg\",\"width\":672,\"height\":455,\"caption\":\"Logisain 78\"},\"image\":{\"@id\":\"https:\\\/\\\/nature-et-developpement.com\\\/logisain-78\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"POUZZOLANE Granulat de Saint Astier","description":"D\u00e9couvrez une nouvelle solution pour r\u00e9aliser des b\u00e9tons de sol naturels. R\u00e9sistance m\u00e9canique \u00e0 la compression: (\u00e0 28 jours) 3 MPa soit 30kg\/cm\u00b2","robots":{"index":"noindex","follow":"nofollow"},"og_locale":"fr_FR","og_type":"article","og_title":"POUZZOLANE Granulat de Saint Astier","og_description":"D\u00e9couvrez une nouvelle solution pour r\u00e9aliser des b\u00e9tons de sol naturels. R\u00e9sistance m\u00e9canique \u00e0 la compression: (\u00e0 28 jours) 3 MPa soit 30kg\/cm\u00b2","og_url":"https:\/\/nature-et-developpement.com\/logisain-78\/produit\/pouzzolane-granulat\/","og_site_name":"LOGISAIN 78 \u2013 Magasin de mat\u00e9riaux biosourc\u00e9s","article_modified_time":"2025-10-23T19:45:10+00:00","twitter_card":"summary_large_image","twitter_misc":{"Dur\u00e9e de lecture estim\u00e9e":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/nature-et-developpement.com\/logisain-78\/produit\/pouzzolane-granulat\/","url":"https:\/\/nature-et-developpement.com\/logisain-78\/produit\/pouzzolane-granulat\/","name":"POUZZOLANE Granulat de Saint Astier","isPartOf":{"@id":"https:\/\/nature-et-developpement.com\/logisain-78\/#website"},"primaryImageOfPage":{"@id":"https:\/\/nature-et-developpement.com\/logisain-78\/produit\/pouzzolane-granulat\/#primaryimage"},"image":{"@id":"https:\/\/nature-et-developpement.com\/logisain-78\/produit\/pouzzolane-granulat\/#primaryimage"},"thumbnailUrl":"https:\/\/nature-et-developpement.com\/logisain-78\/wp-content\/uploads\/27954-POUZZOLANE-Granulat-015mm.jpg","datePublished":"2023-04-07T08:20:31+00:00","dateModified":"2025-10-23T19:45:10+00:00","description":"D\u00e9couvrez une nouvelle solution pour r\u00e9aliser des b\u00e9tons de sol naturels. R\u00e9sistance m\u00e9canique \u00e0 la compression: (\u00e0 28 jours) 3 MPa soit 30kg\/cm\u00b2","breadcrumb":{"@id":"https:\/\/nature-et-developpement.com\/logisain-78\/produit\/pouzzolane-granulat\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/nature-et-developpement.com\/logisain-78\/produit\/pouzzolane-granulat\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/nature-et-developpement.com\/logisain-78\/produit\/pouzzolane-granulat\/#primaryimage","url":"https:\/\/nature-et-developpement.com\/logisain-78\/wp-content\/uploads\/27954-POUZZOLANE-Granulat-015mm.jpg","contentUrl":"https:\/\/nature-et-developpement.com\/logisain-78\/wp-content\/uploads\/27954-POUZZOLANE-Granulat-015mm.jpg"},{"@type":"BreadcrumbList","@id":"https:\/\/nature-et-developpement.com\/logisain-78\/produit\/pouzzolane-granulat\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Accueil","item":"https:\/\/nature-et-developpement.com\/logisain-78\/"},{"@type":"ListItem","position":2,"name":"Produits","item":"https:\/\/nature-et-developpement.com\/logisain-78\/shop\/"},{"@type":"ListItem","position":3,"name":"Construction, cloison et fen\u00eatres","item":"https:\/\/nature-et-developpement.com\/logisain-78\/produits\/construction\/"},{"@type":"ListItem","position":4,"name":"Ma\u00e7onnerie","item":"https:\/\/nature-et-developpement.com\/logisain-78\/produits\/construction\/maconnerie\/"},{"@type":"ListItem","position":5,"name":"POUZZOLANE Granulat de Saint Astier"}]},{"@type":"WebSite","@id":"https:\/\/nature-et-developpement.com\/logisain-78\/#website","url":"https:\/\/nature-et-developpement.com\/logisain-78\/","name":"LOGISAIN 78 \u2013 Magasin de mat\u00e9riaux biosourc\u00e9s","description":"Logisain 78 est membre du groupement Nature & D\u00e9veloppement","publisher":{"@id":"https:\/\/nature-et-developpement.com\/logisain-78\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/nature-et-developpement.com\/logisain-78\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Organization","@id":"https:\/\/nature-et-developpement.com\/logisain-78\/#organization","name":"Logisain 78","url":"https:\/\/nature-et-developpement.com\/logisain-78\/","logo":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/nature-et-developpement.com\/logisain-78\/#\/schema\/logo\/image\/","url":"https:\/\/nature-et-developpement.com\/logisain-78\/wp-content\/uploads\/sites\/5\/2021\/08\/logo-logisain.jpg","contentUrl":"https:\/\/nature-et-developpement.com\/logisain-78\/wp-content\/uploads\/sites\/5\/2021\/08\/logo-logisain.jpg","width":672,"height":455,"caption":"Logisain 78"},"image":{"@id":"https:\/\/nature-et-developpement.com\/logisain-78\/#\/schema\/logo\/image\/"}}]}},"distributor_meta":false,"distributor_terms":false,"distributor_media":false,"distributor_original_site_name":"LOGISAIN 78 \u2013 Magasin de mat\u00e9riaux biosourc\u00e9s","distributor_original_site_url":"https:\/\/nature-et-developpement.com\/logisain-78","push-errors":false,"_links":{"self":[{"href":"https:\/\/nature-et-developpement.com\/logisain-78\/wp-json\/wp\/v2\/product\/12656","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nature-et-developpement.com\/logisain-78\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/nature-et-developpement.com\/logisain-78\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nature-et-developpement.com\/logisain-78\/wp-json\/"}],"wp:attachment":[{"href":"https:\/\/nature-et-developpement.com\/logisain-78\/wp-json\/wp\/v2\/media?parent=12656"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/nature-et-developpement.com\/logisain-78\/wp-json\/wp\/v2\/product_brand?post=12656"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/nature-et-developpement.com\/logisain-78\/wp-json\/wp\/v2\/product_cat?post=12656"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/nature-et-developpement.com\/logisain-78\/wp-json\/wp\/v2\/product_tag?post=12656"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}