{"id":1352,"date":"2017-04-01T11:51:34","date_gmt":"2017-04-01T09:51:34","guid":{"rendered":"https:\/\/www.pro-seal.it\/mantas-de-bentonita\/bentonite-in-polvere\/"},"modified":"2020-05-27T18:06:28","modified_gmt":"2020-05-27T16:06:28","slug":"bentonita-en-polvo","status":"publish","type":"page","link":"https:\/\/www.pro-seal.es\/mantas-de-bentonita\/bentonita-en-polvo\/","title":{"rendered":"Bentonita en polvo"},"content":{"rendered":"<p>[vc_row row_type=&#8221;row_full_center_content&#8221;][vc_column width=&#8221;2\/3&#8243;][vc_column_text]La\u00a0<strong>bentonita s\u00f3dica<\/strong>, un mineral arcilloso de la familia del &#8220;filosilicato&#8221;, compuesto en gran parte de montmorillonita, calcio y sodio, es un producto de descomposici\u00f3n de cenizas volc\u00e1nicas caracterizadas por una estructura cristalina &#8220;laminar&#8221; peculiar definida por una part\u00edcula elemental de montmorillonita.\u00a0Cada l\u00e1mina tiene una distribuci\u00f3n uniforme de cargas negativas en la superficie externa.\u00a0Las l\u00e1minas se agrupan en paquetes gracias a la acci\u00f3n electrost\u00e1tica que ocurre entre los cationes (Na +, Ca ++, K +, H +) que pueden interponerse entre las l\u00e1minas y la distribuci\u00f3n de cargas negativas en la superficie de las l\u00e1minas.\u00a0La prevalencia de un cati\u00f3n en comparaci\u00f3n con los dem\u00e1s determina las caracter\u00edsticas de una bentonita.\u00a0En la bentonita de calcio, los cationes prevalentes son del tipo Ca ++,\u00a0en la bentonita de sodio los cationes prevalentes son del tipo Na +, en la bentonita \u00e1cida prevalecen los cationes H +.\u00a0La bentonita de sodio es particularmente importante en la construcci\u00f3n debido a su caracter\u00edstica activa permanente de absorci\u00f3n de agua, que se expande hasta 12-16 veces en comparaci\u00f3n con su volumen anhidro, lo que la hace ideal para producir mantas, paneles, rollos y perfiles autosellantes, para impermeabilizaci\u00f3n de mamposter\u00eda o muros de hormig\u00f3n contra tierra.<br \/>\n<strong>CLAYGRAIN<\/strong>\u00a0representa el accesorio funcional y vers\u00e1til.\u00a0Mezclado con arena y agua o solo con agua, se puede usar en forma de mortero de pegamento, para sellar cualquier punto d\u00e9bil en la estructura de concreto, antes de rellenar con arena.[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/3&#8243;][vc_single_image image=&#8221;478&#8243; img_size=&#8221;large&#8221;][\/vc_column][\/vc_row]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[vc_row row_type=&#8221;row_full_center_content&#8221;][vc_column width=&#8221;2\/3&#8243;][vc_column_text]La\u00a0bentonita s\u00f3dica, un mineral arcilloso de la familia del &#8220;filosilicato&#8221;, compuesto en gran parte de montmorillonita, calcio y sodio, &#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":1261,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"prodotti2_2.php","meta":{"footnotes":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.5 - 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