Products  〃〃  Expansion Joint
1. Introduction.
  Datong Single Strip Seal joint systems are expansion joints for gap widths up to 80mm. The specific value can vary depending on
the construction demand, which can satisfy the movements of the structures, caused by vehicles, weather, temperature and seismic
2. Application.
  Datong Single Seal joint can be used in asphalt and concrete structures and installed on both new and existing structures. Due
to its easy installation (low depth, fast and cost-effective), it is particularly suitable for retrofitting existing bituminous and mat expansion
  Most single seal joints are applied in cross-sectional area of the surface and no interference with the underlying carrying
construction take place.
3. Design features:
  A number of profiled steels at different dimensions and weight available;
  Steel profiles are integrated fabrication to ensure consistent strength; Yield strength of steel profiles all reaches 345 MPa;
  Extrusion cavity mechanically locks rubber seals for watertight purpose;
  Movement can reach up to 100 mm;
  Movement and rotation can occur in three axes;
  Joint system can be cast into the concrete slab;
  Installation and maintenance convenient;
  Design and manufacture standard:AASHTO LRFD BRIDGE DESIGN SPECIFICATIONS,Section 14.5
  Custom design available for unique projects.
4. Installation.
  See installation and maintenance chapter.
5. Materials.
  steel, grade Q235 or Q345.
  EPDM sealing strip.
  connection concrete should be epoxy resin polymer concrete, hardener and specific mineral filler mixed.
6. Protection.
  On the anti-corrosion side, the steel profiled should be in accordance with ISO12944 or other national standard as requested,
such as ASTRA, RVS and ACQPA.
  The specific sealing strips joint the steel perfectly, which guaranteeing Datong single seal joints 100% water-tight. Once the
sealing strips damaged, it can be replaced and fast and effectively.
7. Quality.
  After 15 years¨ expansion joints manufacture experience, Datong single seal joints have proven their good quality in thousands
of bridges and roads. Datong provides service, in addition to the product, which can contribute to the high quality and durability of the
expansion joints.
  Quality assurance based on ISO9001:2008. Welder qualifications certified by SGS in accordance with EN ISO 9606-1.
8. Quotation.
  Quotations are welcomed with the following information:
  The detailed drawing of the adjoining structures or expansion joint itself.
  The gap width for movement range, and the direction of movements.
  Noise reduction demands.
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