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I

Q: What's the scope of application of TST expansion joint ?

A:

TST expansion joints can be used throughout the country.

Due to the high temperature adhesion characteristics of TST, at construction time, it can be firmly adhered to the existing road and fast.

Room temperature is not sticky, and after cooling will not be taken away .



II

Q: What are the installation methods of TST expansion joint ?

A: The following are the installation methods of TST expansion joint :

1 - Clean the notch, so as to achieve the design of width and depth.

Clear steel bar which interference displacement box buried, and the opening of the reserved hole must be greater than the width of the installation of the expansion joint.

2 - Check whether the gap between the various beams of the expansion device meets the requirements of the installation temperature, otherwise, Horizontal jack and jig should be used to adjust to meet the design requirements.

Adjusted good, immediately install special fixture.

3 - Set the lifting device according to the center position of the expansion joint.

The expansion device is arranged in the notch, The top surface of the expansion device should be the same as the deck elevation.

At the same time pay attention to the aspect and slope should also be consistent with the deck.

4 - After the expansion device is suspended in the reserved slot, the center line of the TST expansion joint should be aligned with the center line of the reserved gap of the top of the beam.

5 - To adjust the straight line segment of the expansion device.

And the gap of each longitudinal beam should be uniform.

6 - In the telescopic device box or the anchor plate, weld with more than Ф16 to high positioning in the vertical direction and weld a steel bar with Ф16 to wide positioning.

7 - After telescopic device being in place and anchorage, welding anchor bar and reserved steel bar to ensure that the extension device is fixed and flat.

8 - If the expansion device is installed sectionally, seams must be welded.

Welding shall be carried out by professional personnel.

And then anchored the joint.

9 - According to the size of the joint and reserved slot seam make the template, the template in place should cover tightly, to prevent water flowing into the tank displacement.

Expansion joint upper plane plus cover plate, to prevent mortar falling into the rubber sealing belt.

After checking whether the correct flatness of the device and midline position and the crevice meet the requirements or not.

If its meet the requirements, you can pour concrete and fully vibrating compaction of concrete.

Pay particular attention to displacement box and the reserved box can not leave empty.

10 - After the expansion joints of concrete reaching 80% of the strength, expansion joints can withstand external loads.



III

Q: What is the principle of TST expansion joint ?

A: The so-called "elastic joints" is a kind of viscoelastic material to do the joints, so that the joints have a certain elastic deformation to adapt to the deformation of the structure.

IV

Q: What is the damage cause of TST expansion joint ?

A:

1 - Design is not standardized.

2 - Expansion joint device itself has a problem.

3 - On the back filling material of the expansion device is not taken seriously and carefully selected that cause a decline in the operational quality of retractable devices and produce different degrees of damage.

4 - The construction of expansion joints and construction methods are not standardized.

5 - Continuous seam setting is not perfect enough.

Contact information

Sales Manager: Miss.

lurywen

Mobile Phone: +86-13323183257

Tel: 86-318-5106277

Fax: 86-0318-5106277 Company: Hengshui Jianfeng Engineering Rubber Co., LTD.D.

Company Contact:

• Posted By: Hengshui Jianfeng Engineering Rubber Co.,LTD

• Phone: 8613323183257

• Address: Renmin road No.1657,Heng shui City,Hebei Province,China, hengshui , hebei , China

• Email:

• Business Description: Hengshui Jianfeng Engineering Rubber Co., LTD., a manufacturing company built
  
  in the year 1999, Located in the North of China, which is a professional manufacturer of water stop, waterproof materials and China association of rubber products waterproofing material association member units as well.
  
  Its annual production capacity is about 10000 tons.
  
  
  
  Our main products include: Waterproofing products as rubber waterstops, pvc water stops, Bentonite Waterstop; Bridge and road construction products as various
  
  Elastomeric bearings, bridge pot bearings, spherical bearings, bridge flexible equipment;
  
  Seismic isolation as lead rubber bearings, high damping rubber bearings, steel type seismic bearings and bridge expansion jont, Inflatable pipe plugs, etc.
  
  The company's operating philosophy is " Work once, Trust all lives ", relying on excellent technology, high quality products and excellent service to get the user's consistent high praise.
  
  Products are mainly used in water conservancy, electric power, environmental protection, ore smelting, machinery, municipal, transportation, airports, ports, stadiums, gardening and irrigation infrastructure industry.
  
  .
  
  in order to ensure product quality, not only has advanced testing equipment, and has passed ISO9001 international quality management system certification.
  
  The company established a perfect quality guarantee system, to ensure the engineering quality.
  
  We can also meet different standrad.