{"id":735,"date":"2020-07-01T07:16:59","date_gmt":"2020-07-01T07:16:59","guid":{"rendered":"http:\/\/proserveltd.co.uk\/?post_type=solutions&p=735"},"modified":"2023-07-19T10:25:57","modified_gmt":"2023-07-19T10:25:57","slug":"sealing","status":"publish","type":"solutions","link":"https:\/\/proserveltd.co.uk\/solutions\/sealing\/","title":{"rendered":"Sealing and Blocking"},"content":{"rendered":"\t\t
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Requirement<\/h1>

For permanent blocking-off of pipes (such as outfalls, sewers and shafts), a concrete plug\/seal can be used.<\/p>

Example situations:\u00a0<\/p>

  • Plugging of disused sewer pipes, drains or culverts<\/li>
  • Plugging a large diameter shaft in two locations, and then mass-concrete infill between (often a lightweight concrete)<\/li>
  • \u2018Temporary\u2019 plug to allow further permeant works infill behind<\/li>
  • Sealing an underwater tunnel\/shaft by diver<\/li><\/ul>

    Where a watertight or high pressure seal is required, two forms are often used, and then a non-shrink concrete infill between the two.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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    Solution<\/h1>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    \n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\t\t\t\t\t\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<\/div>\n\t\t\t\t
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    \n\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\t\t\t\t\t\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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    Grouted fabric forms are commonly used to seal or block tunnels and pipes. The forms are purpose designed to suit the size of the shaft plus access and grouting arrangements.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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    Installation<\/h1>\n

    Seals can be formed in the dry or underwater by divers, pump-filled in situ with microconcrete through small diameter hoses. A vent sleeve is used to control filling pressures and ensure full surface contact.<\/p>\n

    The lightweight form is usually positioned by hand. Where access is limited, the forms can be inserted via delivery pipe.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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    Advantages<\/h1>
    • Controlled grouting in shafts with access from only one side<\/li>
    • Permanent concrete plug<\/li>
    • Small and lightweight for positioning where access is limited, including underwater<\/li>
    • Pump filled in situ to fit shape of shaft and provide required contact<\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"featured_media":3698,"parent":0,"template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"no-sidebar","site-content-layout":"page-builder","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}}},"solution_categories":[14],"acf":[],"yoast_head":"\nSealing and Blocking - Proserve<\/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:\/\/proserveltd.co.uk\/solutions\/sealing\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Sealing and Blocking - Proserve\" \/>\n<meta property=\"og:description\" content=\"Requirement For permanent blocking-off of pipes (such as outfalls, sewers and shafts), a concrete plug\/seal can be used. 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