FRP
pipes
frp pipe
compared with other pipeline sand:
1 roughness coefficient
Prestressed concrete pipe: 0.**3 steel tube: 0.**1 FRP
pipes: 0.***4
2 single length
Prestressed concrete pipe: **6CM steel tube: was of FRP
pipes: ****0 years
4 corrosion resistance
Prestressed concrete pipe: should do anti-corrosion
measures, and do cathodic protection. Steel pipe:
corrosion resistance is poor, need to do a lot of
anti-corrosion processing. FRP pipes: very good, need
not do anti-corrosion measures.
5 safety
Prestressed concrete pipe, non-toxic, non-polluting on
water quality. Steel pipe: existence rust problem, of
water pollution. FRP pipes: conform to the state
standards for drinking water.
6 joint form
Prestressed concrete pipe: flexible rubber ring seal.
Steel pipe: welding. FRP pipes: double O sex circle
seal, socket connection.
7 joint whether can deflect
Prestressed concrete pipe: can't. Steel pipe: can't.
FRP pipes: can deflect 3 degrees.
8 can joint testing
Prestressed concrete pipe: can't. Steel pipe: can't.
FRP pipes: sure.
9 installation rate
Prestressed concrete pipe: slow. Steel pipe: slower.
FRP pipes: very fast.
*0 tube blasting phenomena
Prestressed concrete pipe: yes. Steel pipe: yes. FRP
pipes: no.
*1 maintenance
Prestressed concrete pipe: inconvenience. Steel pipe:
inconvenience. FRP pipes: generally don't need
maintenance, if need to repair is very convenient.
Application:
1 water supply project
*- urban water supply system construction.
- town original supply pipe transformation.
- irrigation.
2 drainage sewage system
- city drains.
- industrial sewage pipe.
*- other drain pipe. Coastal or reclamation made towns
across the, mines, the airport, seaport, road crossing
project used to eliminate the rain and sewage pipe, can
consider to use acid and alkali resistant, occupies
little space, large flow, transportation, dig the fill
light small amount of RPM pipeline.
3 water conservancy, electric power project
- culverts engineering. Used for dyke, channel, road
crossing, can be directly laid drainage culverts buried
RPM tube.
- pour region and pressure aqueduct. Irrigation
channels across the river, depression, can use RPM tube
constitute pour region or aerial pressure aqueduct.
- tunnel project. Artificially tunnel lining, such as
using RPM pipeline construction can be used as a mold
shell (super dig with concrete or part QiShi grouting
filling), because the wall, can increase smooth flow
*0%, the excavation tunnel or dam under buried tube if
use RPM conduit "pipe jacking method" construction,
more can well begun is half done.
The reinforcement of original culverts *-
reservoir.
The pressure conduit *- mountain hydropower
station.
- of the hydropower station cooling sea water
pipes.
