{"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
For permanent blocking-off of pipes (such as outfalls, sewers and shafts), a concrete plug\/seal can be used.<\/p>
Example situations:\u00a0<\/p>
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
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
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