External hydraulic spar for expansion joints of the ND series

 

They are used for sealing and waterproofing movable joints in the monolithic construction of buildings, including foundations, underground parking lots, tunnels, channels, etc. They are mounted directly on the formwork sheet.

Шпонка гидравлическая серии HР AD внешняя Шпонка гидравлическая серии HР AD внешняя

Hydrospins are used in hydraulic structures (reservoirs, canals, dams, swimming pools, etc.), as well as for waterproofing joints of foundations, foundations, tunnels, multi-level parking lots and other underground structures. They are made of thermoplastic elastomer TPE (EPDM) or plasticized polyvinyl chloride PVC-P.

Hydrospin parameters:

Name

ND 200

ND 240

ND 320/35

ND 500/20

ND 500/35

a (mm)

200

240

320

500

500

b (mm)

70

80

110

150

150

c (mm)

4,0

4,5

4,5

5,0

5,0

k (mm)

20

25

35

20

35

f (mm)

20

25

35

35

35

The shape of the hydrospin allows you to securely embed in the concrete structure, the presence of ribs on the locking plane prevents the penetration of moisture into the structure.

the presence of a deformable area allows you to perceive deformations of reinforced concrete structures without breaking the tightness;

it is used for compaction between two concrete structures that are subjected to deformation effects, in particularly important structures it is supplemented with an internal hydraulic spar;

it can be used in structures with special requirements to ensure tightness;

withstands high water pressure inside and outside;

easy to install, no need to change the reinforcement cage;

suitable for all kinds of designs;

they are delivered in rolls of 25 m. p., if it is necessary to extend the rolls, they are welded together with a construction hair dryer for PVC membranes (glued together ? for TRE).

Installation Options:

Вертикальный вариант установки шпонки гидравлической Горизонтальный вариант установки шпонки гидравлической
vertical-vertical horizon-horizon

Technical specifications:

Indicators

1

Material

Thermoplastic elastomer TPE (EPDM)

Plasticized polyvinyl chloride (PVC-P)

2

Colour

Black

Black

3

Packaging

Rolls of 25 m. p.

Rolls of 25 m. p.

4

Roll length deviation, m, not more than

0,5

0,5

5

Size deviation

According to the CD

According to the CD

6

Shore Hardness, A

60 -5

70 -5

7

Density, g / cm?

0,97

1,4

8

Tensile strength, MPa

18,5 (DIN 53455)

10 (DIN 53455)

9

Elongation at break, %

750

275

10

Temperature resistance, °C

from -55°C to 135

-35°C to 70°C

11

Chemical resistance

- from constant exposure to water and wastewater, benzenes and oils;

- from short-term exposure to inorganic alkalis and acids of low and medium concentration.

- from constant exposure to water and wastewater;

- from short-term exposure to inorganic alkalis and low-concentration acids, mineral oils.

12

Shelf life

not more than 5 years, in ventilated areas, protect from direct sunlight

not more than 5 years, in ventilated areas, protect from direct sunlight

Installation procedure and rules:

The hydraulic spar is installed in the design position, so that the middle of the hydraulic spar is located in the center of the expected formation seam.

The attachment is made directly to the formwork. Holes for fasteners are allowed to be made only in the extreme zone of the hydrospin, behind the extreme anchor. Mounting pitch-200-300 mm, symmetrical on both sides. Additional fastening is also made to the reinforcement frame with knitting wire.

The connection of the key made of PVC-p is made by soldering, by heating the ends of the key in a special conductor (for each key — an individual conductor) or using an industrial hair dryer. The temperature of the spike is about 200°C.

To connect the TPE dowels, a sealing adhesive is used, for example, a one-component paste-like adhesive based on the silane-modified polymer Innoellast.

Установка внешней шпонки гидравлической серии HР AD