Construction of Statue of Jesus Christ the Redeemer Rio de Janeiro Brazil

Local engineer Heitor da Silva Costa designed the statue; it was sculpted by Polish-French sculptor Paul Landowski. A group of engineers and technicians studied Landowski’s submissions and the decision was made to build the structure out of reinforced concrete (designed by Albert Caquot) instead of steel, more suitable for the cross-shaped statue. The outer layers are soapstone, chosen for its enduring qualities and ease of use. Construction took nine years, from 1922 to 1931 and cost the equivalent of US$250,000 ($3,300,000 in 2014). The monument was opened on October 12, 1931. The statue was meant to be lit by a battery of floodlights triggered remotely by shortwave radio pioneer Guglielmo Marconi, stationed 5,700 miles (9,200 km) away in Rome, but poor weather affected the signal and it had to be lit by workers in Rio.

Biggest lined irrigation canal- Narmada Canal

Biggest lined irrigation canal- Narmada Canal

You are not seeing any National Highway, Its Aerial View of Narmada Canal Gujarat.

Narmada Main Canal is a contour canal. It is the biggest lined irrigation canal in the world. It is about 458 km. long up to Gujarat -Rajasthan border and 74 kms further in Rajasthan.

Construction and history of The Great Wall Of China

Construction and history of The Great Wall OF China

When was the great wall of china built?

The construction and reconstruction are spread over several centuries. Great Wall construction around 220 BC BC began. Until 1500, it was created on and off for many centuries.
How it was Made.

In the Qin Dynasty, the wall was made by several methods. Workers will put down a thick layer of raw land. This was used as a base type. In addition, they will be placed in a layer of silt and clay, known as the Loess. The Foundation was created, it was used to build the wall of the living earth.

To create a live wall means, workers filled the land with wooden frame and the foundation was laid. A break for them until it was too fragile. It is a thin layer of compacted clay. They are the last to be placed on all levels. Fragments of stone and other debris were added to the wall to try and get even stronger.

It was a long process.

There were different ways to build the Great Wall of the Ming Dynasty. Such as kilns to make bricks for building strong had better technique. They crashed earthen wall of the building and the wall can be used as the innermost layer. Then methodically put them together in the outer layer would use bricks and stones. They were made of rice and lime mortar for bricks was special.

This method made a wall that was many times stronger.

Colosseum- A wonderful construction & history

Colosseum- A wonderful construction & history

Why was the Roman Colosseum built? 

The decision led to the construction of the Colosseum, Roman Emperor from AD 79 to June 1, July 69-23 was taken by Vespasian. His government soon after Nero’s little-known rule. During the reign of Nero in 64AD destroyed in the great fire of Rome. Nero land in the city proper and a lake and gardens built a fabulous palace, (” Golden House ” in Latin) was named Aurea home. 100-120 ft (37m) high measuring a colossal statue of Nero’s Roman was built on the site and has become a landmark in the city of Rome . Arena (Amphitheatre Statilius Taurus ) before the great fire ‘ Roman plebs’ are ordered by Nero to placate and was built in 57AD Amphitheatrum Neronis that was destroyed with a wooden amphitheater built ” during the burning of the stone . Narrow passions andto convey the grandeur of Rome.

Lightweight precast concrete floors

Advantages of Lightweight precast concrete floors:

 35 % compared to the regular precast concrete floor slab of the floor to reduce the weight of the frame is lighter and less structural columns and beams, are needed.

Longer allow (14m X 14m) in a clear and thin but equally strong, the maximum unobstructed floor space and cannot see the open roof spans concrete structures.

Designed to fit and also provides full architectural design freedom : plate size and shape, with maximum dimensions of the customer ‘s specification factory 4m x 10m, 4 different across the floor height ( 280 mm , 340 mm long , The pipe , in the ducts, of wiring or concrete core air conditioning viable option embedded in the fabric of the energy storage system ( FES ) for service with a 390 mm ​​front and 450 mm ) .

Itaipu Dam

Construction of Itaipu Dam

In 1960, the governments of Brazil and Paraguay in their countries to support the needs of the growing power of shared resources working together on a project in a way was found. The tool, which form a natural border between the two nations is the Paraná River, which was the seventh largest in the world. The project uses the energy and convert it into electrical energy that was a massive dam.

July 22 1966, the hydroelectric plant in Brazil and Paraguayan Ministers of Foreign Affairs of the dam and associated agreed to study the possibility of constructing a signed document. It’s starting to work however, it was not until February 1971. Construction is underway, and the legal issues were still in control. In particular, the countries of Argentina, a few miles south of the dam site, the conflict in the dam could be used as a weapon he was worried. All doors, a torrent of water that can be built to flood the capital, Buenos Aires, Argentina opened. To allay the concerns of the three countries of the dam may be submitted at any time of the agreement of October 1979 on the amount of water introduced.

Secret of Eiffel Tower

Eiffel Tower

Foundation work of Eiffel Tower started in January 1887. Those for the east and south legs were straightforward, each leg resting on four 2 m (6.6 ft) concrete slabs, one for each of the principal girders of each leg but the other two, being closer to the river Seine, were more complicated: each slab needed two piles installed by using compressed-air caissons 15 m (49 ft) long and 6 m (20 ft) in diameter driven to a depth of 22 m (72 ft) to support the concrete slabs, which were 6 m (20 ft) thick. Each of these slabs supported a block built of limestone each with an inclined top to bear a supporting shoe for the ironwork. Each shoe was anchored into the stonework by a pair of bolts 10 cm (4 in) in diameter and 7.5 m (25 ft) long. The foundations were complete by 30 June and the erection of the ironwork began.