Gunite Hose Used in Concrete Construction Industry

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Gunite Hose with Steel Wires and Polyester Cords Reinforcement
Gunite Hose is widely used in concrete construction industry, such as concrete repair, mining reinforcement, swimming pool construction, ground stabilization and decorative concrete. Gunite hose is used to convey dry sand and cement to the gunite nozzle by means of compressed air. And water is added to the material by the gunite nozzle before the material is sprayed on the construction surface. Then it forms concrete. Gunite hose is composed of three parts: tube, reinforcement and cover. Tube is made from high quality NR synthetic rubber, which makes gunite hose stand up to the highly abrasive dry sand cement. Reinforcement is made from two layers of high tensile steel wires or high quality polyester cord. Cover is made from NR synthetic rubber, making the hose resistant to weather, ozone, corrosion, cutting and abrasion.

The PVC film is coated on gunite hose, and it is used to protect the hose cover from damages caused by sunlight and abrasion. And protective spring is installed on the gunite hose, and it is used to control the hose bend radius. The PVC films and protective springs can be manufactured according to customers’ requirements.

A roll of black gunite hose is on the floor of the workshop.
Gunite hose.Several roots of gunite hoses are on the floor of the workshop.
Gunite hose assembly.
The details of gunite hose:

Structure: gunite hose is composed of three parts: tube, reinforcement and cover.
Tube: resistant to high abrasion synthetic rubber, mainly NR synthetic rubber.
Reinforcement: two layers of high tensile steel wires or polyester cords.
Cover: resistant to weather, ozone, corrosion, abrasion and cutting synthetic rubber, mainly NR synthetic rubber.
Temperature range: -30°C to +80°C.
Steel wire reinforced gunite hose:

Inner diameter: 32mm, 35mm, 38mm.
Outside diameter: 45mm, 48mm, 52mm.
Working pressure: 40 bar.
Max safety factor: 2.5:1.
Fabric reinforced gunite hose:

Inner diameter: 19mm, 25mm, 32mm, 35mm and 38mm.
Outside diameter: 32mm, 38mm, 44.5mm, 47mm, 48mm and 52mm.
Working pressure: 40 bar.
Max safety factor: 2.5:1.
The specification of gunite hose
Hose code Hose type ID Hose thickness OD Cover thickness Working pressure Max safety factor weight Ends clamps
mm mm mm mm bar Kg/m
GH-01 Steel wire reinforced gunite hose 38 ± 0.5 7 ± 0.5 52 ± 0.8 2 ± 0.2 40 2.5:1 1.38 ± 0.1 1 1/2″
GH-02 35 ± 0.5 6.5 ± 0.5 48 ± 0.8 2 ± 0.2 40 2.5:1 1.25 ± 0.1 1 1/2″
GH-03 32 ± 0.5 6.5 ± 0.5 45 ± 0.8 2 ± 0.3 40 2.5:1 1.14 ± 0.1 1 1/4″
GH-04 Fabric reinforced gunite hose 38 ± 0.5 7 ± 0.5 52 ± 0.8 2 ± 0.2 40 2.5:1 1.17 ± 0.1 1 1/2″
GH-05 35 ± 0.5 6.5 ± 0.5 48 ± 0.8 2 ± 0.3 40 2.5:1 1.06 ± 0.1 1 1/2″
GH-06 35 ± 0.5 6 ± 0.5 47 ± 0.8 2 ± 0.3 15 2.5:1 0.90 ± 0.1 1 1/2″
GH-07 32 ± 0.5 6.5 ± 0.5 44.5 ± 0.8 2 ± 0.3 40 2.5:1 1.01 ± 0.1 1 1/4″
GH-08 25 ± 0.5 6.5 ± 0.5 38 ± 0.5 2 ± 0.3 40 2.5:1 0.8 ± 0.1 1″ or 1 1/4″
GH-09 19 ± 0.5 6.5 ± 0.5 32 ± 0.5 2 ± 0.3 40 2.5:1 0.7 ± 0.1 1″ or 3/4″
Application of gunite hose:
Gunite hose is widely used in concrete construction industry. It is mainly used in concrete repair, mining reinforcement, tunnel, swimming pool construction, bridge repair, culvert and drainage, ground stabilization, fountain, decorative concrete, grain silo, refractory liners and so on.

A worker is spraying the mixture of dry sand, cement and water to the ground with the gunite hose.
Gunite hose can be used in concrete repair.The robotic equipment is spraying the mixture of dry sand, cement and water to the surface of the underground mining with gunite hose.
Gunite hose can be used in mining reinforcement.

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