At 12:00 on April 21, as the 8-meter structure of No. 1 nitrification tank of the sewage treatment station for the Municipal Solid Waste Incineration Power Plant Project in Hanoi completed pouring concrete after continuous construction for 15 hours, the main structure of No.1 nitrification tank successfully finished.
The nitrification tank, 121.5 meters long and 40.5 meters wide, consists of No. 1, No.2 and No.3 tanks. This time it concreted the structure of No. 1 nitrification tank, which is 8 meters. The total volume of concrete is 660 cubic meters, characterized by large occupied area, large volume and high technical requirements. The nitrification tank has higher requirements of structure waterproofing and concrete strength than normal ones. In order to meet the technical requirements, the project department strictly controlled the quality of raw materials, construction process and concrete curing to guarantee the construction technique and quality.
At present, main structures of two nitrification tanks have been completed. To achieve the target of completing main structures of 3 nitrification tanks by mid-June, the project department has actively increased the input of construction resources since April to ensure the rapid progress of steel bar binding for the bottom plate foundation and the installation of the embedded parts of the formwork of No. 2 nitrification tank. Now more than 20 Chinese and Vietnamese employees are working on site for installing the embedded parts and rectifying the steel bars, and striving to complete the concrete pouring within this week.
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