Developer: Qatar General Electricity and Water Corporation
Main Contractor: Consolidated Contracting Group (CCC) & Teyseer Contracting Co. JV
Product Supplied: Epoxy Moment® JoinTec Coupler
The first phase of the project will provide the 7 days of storage for the expected water demand at horizon 2026, with 5 mega reservoir sites. The second phase will provide the 7 days of water storage for expected demand in 2036 by adding additional reservoirs within the 5 mega reservoirs sites.
The Requirement: In order to prevent corrosion at this salt water structure, this project requires epoxy coated couplers to connect with the epoxy coated steel bars.
A total of 2.5million Epoxy JoinTec Coupler were commissioned (300,000 couplers to be delivered each month), hence the production line and operators were expanded to meet the production capacity and for better quality control. These Epoxy JoinTec Couplers had went through a few rounds of quality measures before delivered, below were the main areas focused:
1) Threads to be free from epoxy coating
2) Visibility of the marking on the couplers after coating
3) Dimension and threading check
4) Tensile test for each batch of couplers
Standards operating procedures and strict quality control protocols were the keys to maintain the quality of the couplers and also to keep to the promised delivery timeline.
On top of that, 26 threading machines were also supplied and mobilized on site to produce the threading of 5 million threads. It was a challenge for the threading machines to work under a high temperature between 40-50 degrees in Qatar, therefore these machines were all maintained regularly to avoid any unexpected breakdown during production.
Picture above showing Epoxy Moment® JoinTec Coupler and rebar threading performed at site.
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