PUBLIC DRAIN®
What is PUBLIC DRAIN®?
DOUBLE FACE DRAIN BOARD,SUBSTITUTE FOR SAND & GRAVEL
EASY APPLICATION
HIGH DRAIN PERFORMANCE
THE EXCELLENCY HAS BEEN PROVED BY JAPANESE AUTHORITY
PUBLIC DRAIN is the only authorized drain board by Public Works Research Center of Japan.
HIGH DRAINAGE ABILITY
Combining specially processed less clogging filter and pressure core structure,long term high level drainage ability can be maitained.
HIGH DOUBLE FACE DRAINAGE
Effective for both rain water and spring water from underground.
FOLLOW TO TOPOGRAPHICAL CHANGE
Both filter and core structure are strong and flexible,and follow to topographical change without breaking and cutting.
EASY APPLICATION, GREAT COST SAVING
Special skill is not required and high work speed can be attained,by jointless and light weight material. Total work cost is lower than that of conventional aggregate works.
PUBLIC DRAIN TYPE
| TYPE | BEARING PERFORMANCE | WIDTH |
|---|---|---|
| TYPE A | 50tf/m2 | 30cm, 60cm |
| TYPE B | 25tf/m2 | 30cm, 60cm |
EXAMPLE
Banking drainage
Golf course drainage
Park,Sport ground drainage
EXAMPLE/GROUND DRAINAGE
(1)Spring pore water drainage from existing ground. (substitute for sand mat)
(2)Pore water drainage of banking,seepage(rain water)drainage from slope.(substitute for sand filter)
(1)Spring pore water drainage from existing ground. (substitute for sand mat)
(2)Pore water drainage of banking,seepage(rain water)drainage from slope.(substitute for sand filter)
(3)Rain water drainage from ground surface.
(4)Spring water drainage from ground.
EXAMPLE/OTHERS
(1)Substitute for back-fill material.
(2)Water and air relief.
| SPECIFICATION | |||||||
|---|---|---|---|---|---|---|---|
| ITEM | UNIT | TYPE A | TYPE B | ||||
| Material | Core structure | -- | Poly Winyl Chloride | ||||
| Filter | -- | Non-woven Spun bonded Poly Estel | |||||
| Dimension | Depth | mm | 10 | ||||
| Width | mm | 300 | 600 | 300 | 600 | ||
| Roll length | m | 50 | |||||
| Roll diameter | m | 0.9 | |||||
| Weight | Unit weitht | gf/m | 250 | 500 | 175 | 350 | |
| Weight per roll | kgf | 12.5 | 25.0 | 8.8 | 17.5 | ||
| Mechanical property | Tensile strength(#1) | Core structure | kgf/ product-width |
>300 | >600 | >100 | >200 |
| Filter(dry cond.) | >190 | >380 | >190 | >380 | |||
| Filter(wet cond.) | >160 | >320 | >160 | >320 | |||
| Core structure Compress. Strength |
kgf/cm2 | >5.0 | >2.5 | ||||
| Filter elongation at max.load(#1) |
dry | % | >20 | ||||
| wet | % | >20 | |||||
| Core elongation at max.load(#1) |
% | >50 | >50 | ||||
| Parmeabilty coefficint(#2) | horiz. | cm/sec | > | > | |||
| verti. | cm/sec | circa1.0#10 -2 | circa1.0#10 -2 | ||||
Ramarks(#1)Product length direction
(#2)Horizontal : Permeability coefficient along core structure
Vertical : Permeability coefficient of filter