PDF Brochure OKA RC U-SHAPE DRAINS | ![](http://cms.simplewebdiy.com/upload/company/29/images/ud2-1b_78.png) | 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/mm2 - 40N/mm2
| 3.
| Concrete cover :
| Standard Size U-Drains - 25mm; Super Size U-Drains - 30mm
| 4.
| Loading criteria are shown below :
| |
![](http://cms.simplewebdiy.com/upload/company/29/images/ud2-2a_E6.jpg) | 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 ud-pg2aa_1A.jpg](http://cms.simplewebdiy.com/upload/Company/29/images/ud-pg2aa_1A.jpg) | OKA U-DRAINS COME IN STANDARD LENGTH OF 1 METRE |
STANDARD SIZE U-DRAINS - DIMENSIONS AND PRODUCT WEIGHT | ![ud-mar20-pg2_1D.jpg ud-mar20-pg2_1D.jpg](http://cms.simplewebdiy.com/upload/Company/29/images/ud-mar20-pg2_1D.jpg)
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* 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 ud-pg3a_D6.jpg](http://cms.simplewebdiy.com/upload/Company/29/images/ud-pg3a_D6.jpg) | OKA U-DRAINS COME IN STANDARD LENGTH OF 1 METRE |
SUPER SIZE U-DRAINS - DIMENSIONS AND PRODUCT WEIGHT | ![ud-pg3a_1B.jpg ud-pg3a_1B.jpg](http://cms.simplewebdiy.com/upload/Company/29/images/ud-pg3a_1B.jpg) |
SUPER SIZE U-DRAINS (PAGE 2 OF 2) | ![udpg4a_3E.jpg udpg4a_3E.jpg](http://cms.simplewebdiy.com/upload/Company/29/images/udpg4a_3E.jpg) |
* NON STANDARD SIZES AND NON STANDARD LOADING CONDITIONS CAN BE MANUFACTURED UPON REQUEST Top of Page
Download PDF Brochure
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