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Products > U-Shape Drains

 

PDF Brochure

OKA RC U-SHAPE DRAINS

U-DRAINS WITHOUT
DRY WEATHER FLOW (DWF) CHANNEL
U-DRAINS WITH
DRY WEATHER FLOW (DWF) CHANNEL

DESIGN AND SPECIFICATIONS

1.Structural design in accordance with requirements of BS 8110:1997
2.
Concrete characteristic strength :
30N/mm- 40N/mm2
3.
Concrete cover :
Standard Size U-Drains - 25mm; Super Size U-Drains - 30mm
4.
Loading criteria are shown below :
 
For other design considerations or specifications not shown here, please contact our Technical Department

 
HANDLING, STACKING, LAYING, JOINTING AND BACKFILLING

•  Handling :A spreader beam to be used with steel pins and lifting cables to avoid cracking at junction of side wall and base slab.
•  Stacking : U-drains are to be stacked on level and stable ground to avoid cracking of base slab.
•  Laying : U-drains should be laid on prepared bedding to ensure uniform support under the full width and length of the U-drains.
•  Jointing : Butt joints.  Gaps normally to be filled up with cement-sand mortar.
•  Backfilling : Backfilling with selected free draining backfill material.  Avoid use of heavy vibratory equipment next to side walls.

 


STANDARD SIZE U-DRAINS (PAGE 1 OF 1)

 ud-pg2aa_1A.jpg
 OKA U-DRAINS COME IN STANDARD LENGTH OF 1 METRE

 

STANDARD SIZE U-DRAINS - DIMENSIONS AND PRODUCT WEIGHT
 ud-std1_BE.jpg


* NON STANDARD SIZES AND NON STANDARD LOADING CONDITIONS CAN BE MANUFACTURED UPON REQUEST



SUPER SIZE U-DRAINS  (PAGE 1 OF 2)

 ud-pg3a_D6.jpg
 OKA U-DRAINS COME IN STANDARD LENGTH OF 1 METRE

 

SUPER SIZE U-DRAINS - DIMENSIONS AND PRODUCT WEIGHT
 ud-ss1a_6Z.jpg

 


 

SUPER SIZE U-DRAINS  (PAGE 2 OF 2)
 ud-ss2a_7E.jpg

* NON STANDARD SIZES AND NON STANDARD LOADING CONDITIONS CAN BE MANUFACTURED UPON REQUEST


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