Ruman Ali
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A proposed fully air-conditioned venue for the 2022 World Cup, the Khalifa International Stadium has been completed.
First built in 1976, the stadium's capacity has been expanded to more than 40,000 with renovation costs sitting at some £70 million.
Major changes have been made to the facility including changing rooms, media tribune, VIP areas and sports museum, as well as a new roof design that covers all the seats.
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Epoxy pressure injection used to repair cracks At Civil Engineering.
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Concrete slump test
The slump test measures the consistency of fresh concrete before it sets. It is performed to check the workability of freshly made concrete, and therefore the ease with which concrete flows. It can also be used as an indicator of an improperly mixed batch. The test is popular due to the simplicity of apparatus used and simple procedure. The slump test is used to ensure uniformity for different loads of concrete under field conditions.[1]
A separate test, known as the flow table, or slump-flow, test, is used for concrete that is too fluid (workable) to be measured using the standard slump test, because the concrete will not retain its shape when the cone is removed.
The test is carried out using a metal mould in the shape of a conical frustum known as a slump cone or Abrams cone, that is open at both ends and has attached handles. The tool typically has an internal diameter of 100 millimetres (3.9 in) at the top and of 200 millimetres (7.9 in) at the bottom with a height of 305 millimetres (12.0 in).The cone is placed on a hard non-absorbent surface. This cone is filled with fresh concrete in three stages. Each time, each layer is tamped 25 times with a 2 ft (600 mm)-long bullet-nosed metal rod measuring in (16 mm) in diameter. At the end of the third stage, the concrete is struck off flush with the top of the mould. The mould is carefully lifted vertically upwards, so as not to disturb the concrete cone.
The concrete then slumps (subsides). The slump of the concrete is measured by measuring the distance from the top of the slumped concrete to the level of the top of the slump cone.
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Pre cast works with the help of Crane/ launching Girder, later on will be transported to main site
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اورنج لائن میٹرو ٹرین کاآزمائشی سفرجو ویڈیو ہم لوگ نہیں بنا سکے وہ آپ یہاں سے....
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World's longest sea bridge linking Hong Kong, Zhuhai and Macao is dubbed "the most technologically complicated". How did engineers and workers manage to overcome engineering challenges during the 7-year-long construction?
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اورنج لائن میٹرو ٹرین کاآزمائشی سفرجو ویڈیو ہم لوگ نہیں بنا سکے وہ آپ یہاں سے....
Test On fresh concrete by Using compaction factor Method..
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VEE-BEE TEST
To determine the workability of fresh concrete by using a Vee-Bee consisto Meter as per IS: 1199 – 1959. The apparatus used is Vee-Bee consisto Meter.
Procedure to determine workability of fresh concrete by Vee-Bee consisto Meter.
i) A conventional slump test is performed, placing the slump cone inside the cylindrical part of the consisto Meter.
ii) The glass disc attached to the swivel arm is turned and placed on the top of the concrete in the pot.
iii) The electrical vibrator is switched on and a stop-watch is started, simultaneously.
iv) Vibration is continued till the conical shape of the concrete disappears and the concrete assumes a cylindrical shape.
v) When the concrete fully assumes a cylindrical shape, the stop-watch is switched off immediately. The time is noted.The consistency of the concrete should be expressed in VB-degrees, which is equal to the time in seconds recorded above.
The casting process is the largest concrete foundation in the world
Project:
Safari shopping Mall Basement and Ground floor.
Steel:
5500 tons of Steel
Manpower:
Skilled labour 600+
Machinery:
2600 Transit Mixer & Boom Pump.
Pouring Times:
54 Hour continuously work.
پاکستان اور انڈیا میں ٹاف ٹایل چھوٹے پیمانے پر کس طرح بنائی جاتی ہے.
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