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Joint tubes (Q 1, Q 2, DR 6) |
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Joint tube for sealing of shrinkage - and construction joints in watertight concrete walls
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- controlling of cracks (predetermined breaking point)
- sealing of cracks by anchoring ribs
- quick and efficient installation
- reliable since decades
Q 1 for concrete cross sections from 24 up to 35 cm
Q 2 for concrete cross sections from 35 up to 50 cm
DR 6 for concrete cross sections from 17 up to 24 cm
(especially for pre-cast double walls. |
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Before installation, the joint tube has to be cut in across to the smooth crack inducer. The joint tube has to be cut into lengths according to total height of the walls, on building site.
Attaching the joint tube on top of KAB, which is installed for sealing the connection floor level-wall. It has to pay special attention to ensure a distance of approx. 5 cm between the bottom line of joint tube and the horizontal construction joint.
During installation the joint tube has to be fixed on the top by clamps at the anchoring ribs.
Concrete has to bring into the formwork evenly and simultaneous on both sides of the joint tube.
Extraction of the inner pipe after concreting does not take place.
The joint tube has to be filled with concrete during or after concreting the wall.
Advantages and description of function
- Controlled shrinkage cracking by reducing the cross section.
- Sealing of the shrinkage crack by anchoring ribs of the tube.
- Walls are force - fit, because the necessary static reinforcement won
 t be interrupted.
- Low wage costs for installation.
- Its possible to concrete monolithic wall sections of any length.
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Our waterstops are available in two material qualities "DIN 18541 PVC-P-NBR combined polymerisat" and "Standard Specification PVC-P". Both materials are available in "NB" = not compatible with bitumen and "BV" = compatible with bitumen according to DIN 16937.
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DIN 18541 PVC-P-NBR combined polymerisat
(external quality control by MPA NRW)
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attitude against bitumen:
NB = not compatible with bitumen
BV = compatible with bitumen
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physical properties (extract)
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waterstops, waterstops for
capping joints and profiles
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test according to DIN
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Elongation at break at + 23° C
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350 %
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53455
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Tensile strength
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10 N/mm²
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53455
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Shore A-hardness
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70 +- 2
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53505
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Waterstops and profiles without geometrically accordance to DIN 18541, will be delivered according to DIN 18541 part 2, table 1. Further applications must be specified separately.
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Concerning the actual state of the DIBt (german institute of civil engeneering) in consultation with the authorities of construction inspection of the federal states created building regulations, for protection against pressing and not pressing water also against soil humidity, its only allowed to use waterstops in accordance to:
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DIN 18541
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DIN 7865
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waterproofing systems |
thermoplastic waterstops, weldable
elastomeric waterstops, vulcanisable
with AbP (general construction supervision certificate) |
DIN V 18197 regulate the planning, dimensioning, conditioning, handling and the installation of waterstops.
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Standard Specification PVC-P
(internal quality control, without AbP)
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attitude against bitumen:
NB = not compatible with bitumen
BV = compatible with bitumen according to DIN 16937
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physical properties (extract)
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waterstops, waterstops for
capping joints and profiles
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test according to DIN
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Elongation at break at + 23° C
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275 %
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53455
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Tensile strength
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7,5 N/mm²
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53455
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Shore A-hardness
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73 +- 2
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53505
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Standard intersection pieces leg length 0,50 m (dimension between axes)
Waterstop intersection pieces and systems
On placing an order of standard intersection pieces, quantity, design, type of waterstop and material quality have to be declared.
For making of waterstop systems its necessary for us to have dimensioned as possible isometric system drawings with designation about type of waterstop and material quality.
Every declared dimension has to be dimension between axes.
Examples of submission joint tubes
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Leschuplast GLT joint tube with AbP (General Construction Supervision Certificate), for precise controlling and sealing of shrinkage cracks in watertight concrete consisting of harder adjusted PVC soft, reinforced with rigid PVC - U - pipe, diameter ... mm, for concrete cross sections from ... up to ... cm,
Leschuplast GLT type Q1 / Q2 / DR 6 |
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+40 231 522 525 
