* The Burj Khalifa is made of reinforced concrete, which is a mixture of cement, sand, gravel, and water.
* The concrete used in the Burj Khalifa is a high-strength concrete that has a compressive strength of 80 megapascals (MPa).
* This means that the concrete can withstand a pressure of 800 kilograms per square centimeter (kg/cm2).
Steel
* The Burj Khalifa also uses a lot of steel.
* The steel is used to reinforce the concrete and to create the building's structural framework.
* The steel used in the Burj Khalifa is a high-strength steel that has a yield strength of 550 MPa.
* This means that the steel can withstand a force of 550 kg/cm2 without breaking.
Glass
* The Burj Khalifa has a lot of glass.
* The glass is used to create the building's windows, curtain walls, and spires.
* The glass used in the Burj Khalifa is a special type of glass that is resistant to heat, wind, and sand.
* It reflects about 25% to 30% of the incoming light to reduce glare.
Other materials
* In addition to concrete, steel, and glass, the Burj Khalifa also uses a variety of other materials, such as:
* Aluminum
* Carbon fiber
* Stone
* Marble
* Granite
* Stainless steel
* Titanium
