Arches, Bridges, and Ring Mounts

Building supplies

Arches, Bridges, and Ring Mounts

With properly selected and installed rebar supports, you ensure a high-quality outcome for your concrete work. Our selection includes several types of supports with different cover depths for various applications.

Arch, bridge, and ring supports are used when the base is firm, such as a formwork surface. Arch and bridge supports are used in bridge construction sites, parking garages, and wall structures. The recommended installation density is 4-6 pieces per m².

Ring supports are used, for example, in the production of precast concrete elements. When using supports with pointed legs, the legs do not remain visible.

Holvikoroke 16 sarja matala raudoitustarvikkeet Inora
  • Cover depth 15-35 mm
  • Rebar thickness max 16 mm
  • Support width 30 mm
  • Leg thickness 7 mm
  • Material PE
  • Packaging sizes: 100 pcs/bag and 1000 pcs/sack
  • See the comparison table for the full selection.
Raudoituskoroke 16-sarja teräväjalkainen
  • Cover depth 15-50 mm
  • Rebar thickness max 16 mm
  • Support width 30 mm
  • Leg thickness 7 mm
  • Material PE
  • Packaging sizes: 100 pcs/bag and 1000 pcs/sack
  • See the comparison table for the full selection.
Holvikoroke 16 sarja matala raudoitustarvikkeet Inora
  • Cover depth 25-50 mm
  • Rebar thickness max 25 mm
  • Support width 38 mm
  • Leg thickness 10 ml
  • Material PE
  • Packaging size: 500 pcs/sack
  • See the comparison table for the full selection.
siltakoroke 25-sarja
  • Cover depth 18-45 mm
  • Rebar thickness max 25 mm
  • Support width 40 mm
  • Leg thickness 10.5 mm
  • Material PE
  • Packaging sizes: 100 pcs/bag and 500-700 pcs/sack
  • See the comparison table for the full selection.
Inora holvikoroke teräväjalkainen 25-sarja
  • Cover depth 25-50 mm
  • Rebar thickness max 23 mm
  • Support width 40 mm
  • Leg thickness 7 mm
  • Material PE
  • Packaging sizes: 100 pcs/bag and 500 pcs/sack
  • See the comparison table for the full selection.
Siltakoroke matala 25 raudoitustarvikkeet Inora
  • Cover depth 27-70 mm
  • Rebar thickness max 32 mm
  • Support width 51 mm
  • Leg thickness 10.5 mm
  • Material PE
  • Packaging sizes: 300-450 pcs/sack
  • See the comparison table for the full selection.
Inora rengaskoroke 20-sarja
  • Cover depth 25-70 mm
  • The rings detach from each other. Can be used individually or in pairs.
  • 6 rings per piece
  • Material PE
  • Packaging sizes: 24-48 pcs/sack, depending on height.
  • 24 sacks per pallet.
  • Standard color gray, other colors by order.
  • See the comparison table for the full selection.
PE kemiallinen kaava

Polyethylene (PE) is the most widely used plastic type in the world. Polyethylenes are divided into two main groups based on density: low-density polymers (LDPE) and high-density polymers (HDPE). The common properties of all PE grades are:

Lightweight (density for all grades is less than 1 g/cm³, meaning they all float in water)

  • Good chemical resistance
  • Wide operating temperature range from -45 °C to +75 °C
  • Toughness
  • Easily machinable and weldable
  • Wear-resistant, slippery surface
  • Good electrical insulation
  • Economical
  • The properties of PE can be modified, for example, by UV stabilization.

Recycled raw material is also used for Inora's rebar supports.

A rebar support has a significant impact on the lifespan of a concrete structure. Pay attention to a sufficiently thick layer of concrete protecting the rebars, as this improves the protective capacity of the concrete and prevents the onset of active corrosion.

To ensure a durable result, also consider the cover depth, which is the height of the support, and always use the recommended number of rebar supports (4-6 pcs/m²). The durability of the structure is also affected by the quality of the concrete, especially the water-cement ratio.

The rebars are supported in the formwork with rebar supports and are tied to each other if necessary. A strong bond ensures that the requirements after casting are met. Note that during casting, the reinforcement has a tendency to sink downwards, which is why the rebars should be installed slightly higher than the required cover depth.

Using pointed-legged arch supports in wall casting

When casting a wall, rebar supports are attached to the formwork surface. When using a pointed-legged support, the legs of the support do not remain visible after casting. The rebar is securely snapped into the support, and the attachment is secured with wire.

Product Product number Package size pcs Cover depth mm Overall height mm
Arch support 16/15 500001 1000 15  25
Arch support 16/15 500017 100 15  25
Arch support 16/20 500002 1000 20  30
Arch support 16/20 500018 100 20  30
Arch support 16/25 500003 1000 25  35
Arch support 16/25 500019 100 25  35
Arch support 16/30 500004 1000 30  40
Arch support 16/30 500020 100 30  40
Arch support 16/35 500005 1000 35  45
Arch support 16/35 500021 100 35  45
Arch support 25/25 500008 500 25 40
Arch support 25/30 500011 500 30 45
Arch support 25/35 500009 500 35 50
Arch support 25/40 500010 500 40 55
Arch support 25/45 500012 500 45 60
Arch support 25/50 500013 500 50 65
Product Product number Package size pcs Cover depth mm
Pointed-legged arch support 16/15 500120 1000 15
Pointed-legged arch support 16/15 500115 100 15
Pointed-legged arch support 16/20 500122 1000 20
Pointed-legged arch support 16/20 500116 100 20
Pointed-legged arch support 16/25 500124 1000 25
Pointed-legged arch support 16/25 500117 100 25
Pointed-legged arch support 16/30 500126 1000 30
Pointed-legged arch support 16/30 500125 100 30
Pointed-legged arch support 16/35 500128 1000 35
Pointed-legged arch support 16/35 500118 100 35
Pointed-legged arch support 16/40 500129 1000 40
Pointed-legged arch support 16/40 500119 100 40
Pointed-legged arch support 16/45 500137 1000 45
Pointed-legged arch support 16/45 500123 100 45
Pointed-legged arch support 16/50 500138 1000 50
Pointed-legged arch support 16/50 500121 100 50
Product Product number Package size pcs Cover depth mm
Pointed-legged arch support 25/25 500033 500 25
Pointed-legged arch support 25/25 500034 100 25
Pointed-legged arch support 25/30 500024 500 30
Pointed-legged arch support 25/30 500035 100 30
Pointed-legged arch support 25/35 500028 500 35
Pointed-legged arch support 25/35 500036 100 35
Pointed-legged arch support 25/40 500029 500 40
Pointed-legged arch support 25/40 500037 100 40
Pointed-legged arch support 25/45 500032 500 45
Pointed-legged arch support 25/45 500038 100 45
Pointed-legged arch support 25/50 500033 500 50
Pointed-legged arch support 25/50 500039 100 50
Product Product number Package size pcs Cover depth mm Overall height mm
Bridge support 25/18 500105 500 18 30
Bridge support 25/18 500113 100 18  30
Bridge support 25/23 500091 500 23 35
Bridge support 25/23 500106 100 23 35
Bridge support 25/27 500092 700  27 39
Bridge support 25/27 500107 100 27  39
Bridge support 25/30 500093 700  30 42
Bridge support 25/30 500108 100 30 42
Bridge support 25/35 500094 500 35 47
Bridge support 25/35 500109 100 35 47
Bridge support 25/40 500095 500 40 52
Bridge support 25/40 500110 100 40 52
Bridge support 25/45 500096 500 45 57
Bridge support 25/45 500111 100 45 57
Product Product number Package size pcs Cover depth mm Overall height mm
Bridge support 32/27 500098 450 27 36
Bridge support 32/35 500099 350 35 44
Bridge support 32/40 500100 350 40 49
Bridge support 32/45 500101 350 45 54
Bridge support 32/50 500102 300 50 59
Bridge support 32/60 500103 300 60  69
Bridge support 32/70 500104 300 70  79
Product Product number Pcs/sack Sacks per pallet Cover depth mm
Ring support 20/25 500076 48  24 25
Ring support 20/30 500077 46 24 30
Ring support 20/35 500078 40 24 35
Ring support 20/40 500079 36 24 40
Ring support 20/45 500080 34 24 45
Ring support 20/50 500081 32 24 50
Ring support 20/55 500082 30 24 55
Ring support 20/60 500083 28 24 60
Ring support 20/65 500084 26 24 65
Ring support 20/70 500085 24 24 70
Ring support 20/25 white 500087  48  24  25
Ring support 20/30 white 500088  46  24  30

Feel free to ask our sales staff for more information about the supports.