Prestressed Concrete Bellows for PC Strands
PRE-STRESSED CORRUGATED DUCT / PIPE / TUBE
Category: round and flat; STEEL and HDPE plastic duct
Product Standard: Steel Duct JG 225-2007, Plastic Duct JTT 529-2016
Wall Thickness: Steel Duct 0.20-0.25-0.30-0.35-0.40mm, Plastic Duct 1.8-2.3-2.5-3.0-3.5mm
Application: round 2-55 strands, flat 2-5 strands
Used to Strand: 12.5/12.7/12.9, 15.24, 15.7mm etc.
Dimension: round diameter 50-160mm, flat size 50x22-90x22mm
Material: black steel strip, galvanized steel strip, HDPE plastic
Model: round YM13 / YM15 2-55 strands, flat BM13 / BM15 - 2/3/4/5 strands.
Application: post-tensioning pre-stressed concrete construction and infrastructure projects, such as bridges, viaducts, multi-story industrial building, dam, mine etc.
Introduction: The corrugated duct product is mainly be used for post-tensioned pre-stressed concrete structures as a pass-way pipe of PC strand tendons. In usually, it includes Metal and Plastic (HDPE) duct two types, which distinguish by their raw materials. The metal duct includes two types of galvanized steel and non-galvanized black steel. Each type duct includes two types of Round and Flat by the section shape.
Application: corrugated pipe is mainly used in highway, railway, municipal bridge engineering, elevated bridge, water conservancy project, large iron and steel plant construction (pre buried bolt Engineering) and large-scale high-rise building engineering pre-stressed corrugated pipe system products, grouting construction.
| PARAMETER OF ROUND DUCTS |
| MODEL |
STRAND NO. |
INNER SIZE |
| YM15-2, 3 |
2, 3 |
50 MM |
| YM15-4, 5 |
4, 5 |
55 MM |
| YM15-6, 7 |
6, 7 |
70 MM |
| YM15-8, 9 |
8, 9 |
80 MM |
| YM15-10, 11, 12, 13, 14, 15, 16, 17 |
10, 11, 12, 13, 14, 15, 16, 17 |
90 MM |
| YM15-18, 19 |
18, 19 |
100 MM |
| YM15-21, 22 |
21, 22 |
120 MM |
| YM15-25, 26, 27, 30, 31 |
25, 26, 27, 30, 31 |
130 MM |
| YM15-34, 37 |
34, 37 |
140 MM |
| YM15-43, 44, 54, 55 |
43, 44, 54, 55 |
160 MM |
| Metal / Plastic Round Corrugated Duct Parameter |
Use for Multi-hole Anchorage |
| Inner Diameter |
Outer Diameter |
Models |
| Φ55 |
Φ60 / Φ66 |
YJM15-3~5 |
| Φ70 |
Φ75 / Φ81 |
YJM15-6~7 |
| Φ80 |
Φ85 / Φ91 |
YJM15-8~9 |
| Φ90 |
Φ95 / Φ101 |
YJM15-10~17 |
| Φ100 |
Φ105 / Φ114 |
YJM15-18~19 |
| Φ120 |
Φ125 / Φ134 |
YJM15-21~23 |
| PARAMETER OF FLAT DUCTS |
| MODEL |
BM13/15-2 |
BM13/15-3 |
BM13/15-4 |
BM13/15-5 |
| INNER SIZE |
50 X (22-25) MM |
60 X (22-25) MM |
74 X (22-25) MM |
90 X (22-25) MM |
Audited Supplier 
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