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Nov 22, 2004 |
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Feb 16, 2011 The personnel requirements for carrying out the fill and drain system are 3 to 5 people. Besides the equipment required for the cleaning and inspection, sufficient sealing balloons are also required as well as 2 to 4 tanker vehicles with integrated or separate pumps and suction installations as well as a container with tools and testing equipment. |
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Feb 16, 2011 The advantages that can be named are:
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Nov 22, 2004 Rehabilitation and Maintenance of Drains and Sewers Injection from Inside with Non-Man-Accessible Cross Sections Fill and drain system, also called flood grouting or line injection, are characterised by a two-phase injection using the section of the sewer as a conveying or distribution pipe for the injection medium and the leaks as injection openings. The required injection pressure is created by means of backing up the affected section of the sewer or the network region. Some representatives of this group of processes, in alphabetic order are:
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Nov 22, 2004 The injection processes utilised in the non-man-accessible region serve the purpose of
In contrast to the internal injection with man-accessible cross sections, in which all works can be carried out manually at the site under direct control, the injection in the non-man-accessible region (with the exception of the fill and drain … |
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By injection (insertion) there will be understood in the following, under the influence of DIN 4093 [DIN4093], the introduction of injection media (insertion substance to DIN 4093 [DIN4093] or filling substances to ZTV-Riss 93 [Verkehra]) into cracks and cavities under pressure by means of filler nozzles. Cavity is the covering term for natural and artificial cavity structures of all kinds:
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Nov 22, 2004 For some years the shrink hoses to DIN 30672 [DIN30672-1:1991], also called shrink sleeves [Opitz85], that have proven themselves in the gas and water sectors have also been used in the sewage sectors for sealing pipe joints up to DN 1200 [FI-Raych]. Shrink hoses consist of jet soaked polyethylene with an inner coating of thermoplastic sealing adhesive. Jet soaked plastics, especially when they are specially mixed with stabilisers, possess the following … |
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Nov 22, 2004 (Image: 3-Part sleeve for external sealing - TS 30 [FI-Städt]) For external sealing of locally limited leaks, e.g. lateral cracks, limited pipe breaks, leaking pipe joints (felt connections) also combined with lateral deviations of limited extent in the horizontal and vertical direction, there are available multi-part sleeves of stainless steel with an inner elastomer coating (Bild 5.2.3.1.2). With this type of sleeve, seals to pipes with circular … |
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Nov 22, 2004 Surface moisture in manholes or other structures of drain and sewer systems or in man-accessible sewers of concrete or reinforced concrete can also be sealed by means of surface treatment with the use of various media. A fluid silification preparation is often used for sealing against water that is not under pressure. According to [AGIK10], silification is understood to be "A solidification of mineral structural materials by means of soaking with silicic … |
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Nov 22, 2004 Rehabilitation and Maintenance of Drains and Sewers Sealing of Joints and Pipe Joints with the Aid of Sealing Materials
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Nov 22, 2004 Rehabilitation and Maintenance of Drains and Sewers Sealing of Joints and Pipe Joints with the Aid of Sealing Materials Plastics sealing media to DIN 4062 [DIN4062:1978], hereafter called sealing materials, are materials that remain constantly plastic, that contain bitumen, coal tar pitch, plastics or mixtures thereof as binding material and that can be worked at 20° C without the use of a heat source. They consist of un-polymerised materials that are inserted into the joint by means of a pouring process. Increasingly used today, in addition to the sealing materials, … |
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Feb 16, 2011 Rehabilitation and Maintenance of Drains and Sewers Sealing of Joints and Pipe Joints with the Aid of Sealing Materials
Depending on the behaviour from the plastic to the mechanical portions, the sealing materials and joint sealing masses can be designated as plastic, plasto-elastic, elasto-plastic or elastic (Bild 5.2.3.2.2.3). This behaviour is derived from the deflection … |
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Feb 16, 2011 Rehabilitation and Maintenance of Drains and Sewers Sealing of Joints and Pipe Joints with the Aid of Sealing Materials It is usual for joint sealing masses to use the chemical raw material base for characterizing and differentiation, on the basis of which certain important information can be obtained on properties and features. However, it must be noted that many masses on the market contain inactive filler material that can influence the properties under certain circumstances. According to chemical raw materials, there is differentiated between:
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Feb 16, 2011 Rehabilitation and Maintenance of Drains and Sewers Sealing of Joints and Pipe Joints with the Aid of Sealing Materials According to the structure and testing regulations (BPG) of the DIBt [IfBt81]), only two-component joint sealing masses that are based on polyurethane or polyurethane-tar are at present suitable for application in sewer installations. Joint sealing masses based on polyurethane-tar are distinguished by good adhesion to concrete joint flanks. With the corresponding settings, they are stable against water pressure and also resistant to possible chemical … |
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Nov 22, 2004 Rehabilitation and Maintenance of Drains and Sewers Sealing of Joints and Pipe Joints with the Aid of Sealing Materials The seal is to be inserted into the butt joint at the inside of the sewers. The back filling of the joint must have sufficient resistance so that the joint sealing mass can be properly inserted and smoothed [Engel89]. The back filling material used should be a circular profile of plastics foam (diameter 10 to 50 mm). (Image: Joint without joint strip [NN73])It is recommended, before the insertion of the joint sealing mass, to insert a strip of polyethylene … |
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Nov 22, 2004 One possibility to later seal joints and pipe joints in man-accessible nominal size regions is with the insertion of sealing materials (elastic sealing media and plastic sealing media) in accordance with DIN 19543 [DIN19543:1982] and EN 476 [DINEN476:1997] as well as joint sealing masses [Barte80] [Werse80]. DIN 19543 [DIN19543:1982] has been replaced since August 1997 by EN 476 [DINEN476:1997]. As this latter does not specifically deal with sealing … |
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The process was developed for the repair of locally limited damage in sewer pipes and sewers with circular cross sections in the nominal size range DN 150 to DN 600 with widths of up to 4.00 mm and ovoid cross sections with comparable dimensions. The process is independent of the pipe material [GSTT1/2]. The dimensions of the resin soaked glass weave depends on the following pipe-specific limiting conditions:
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Short hose processes are carried out from available manholes. In preparation for the work, the section of the sewer as well as the connecting sewers must first be closed off and taken out of service. The sewer must be cleaned and the exact positions and dimensions of the respective damage as well as connections must be optically inspected; if necessary, the sewer should also be calibrated. Any flow obstacle that have been found and that could hinder … |
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In the case of the Partliner™ process, the carrier material used for the epoxy resin is an acid resistant ECR (aluminium-lime silicate-glass) web with a thickness of 2 mm. The glass fibre mat is made up at site in accordance with the length of the damaged region (550 - 3000 mm) and the nominal size of the sewer in such a way that both of the end regions of the mat overlap by at least 100 mm. Larger wall thicknesses (up to 6 mm) are achieved by several … |
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After completing the work, a TV inspection (Bild 5.2.3.2.3.1.1.1.3) as well as a leaktightness test according to EN 1610 [DINEN1610:1997] (Abschnitt 4.5.1) must be carried out. After this, the rehabilitated sewer can be placed in service again. Further representatives of this group of processes in alphabetical sequence with their technical parameters and areas of application are presented in Tabelle 5.2.3.2.3.1.1.1.4. (Table: Comparison processing … |
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Apr 06, 2005 |
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Feb 16, 2011 (Image: Brochier Spotliner - Structure of the short hose with reference to [FI-Broch] [Image: S&P GmbH]) In the Brochier Spotliner Process, the packer for the particular rehabilitation process is specially made to suit whereby the rehabilitation lengths can be variable.. In total, 5 hoses are required for the structure of the packer and the actual GRP short hose (Bild 5.2.3.2.3.1.1.2). The first 3 hoses are inserted into each other in the above-mentioned … |
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Nov 22, 2004 In the following, the repair of sewer pipes and sewers is described using as example the Partliner Process [FI-KMG]. |
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Feb 16, 2011 In principle, all the short hose processes mentioned above are also suitable for laterals when they are designed for the nominal size range = 100 mm and corresponding manholes for the introduction of the apparatus are available. Special developments, for instance, are the MIDLINER process [FI-KMG] as well as the Flexo-Lining process. The area of application of the MIDLINER process (Bild 5.2.3.2.3.1.2) (Bild 5.2.3.2.3.1.2) (Bild 5.2.3.2.3.1.2) ranges … |
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