Things You didn’t Know Chaotianmen Bridge – World Record Steel Arch Bridge

Chaotianmen Bridge - World Record Steel Arch Bridge

Things You didn’t Know about Chaotianmen Bridge – World Record Steel Arch Bridge The Chaotianmen Bridge is built across the Yangtze River, Chongqing, China. The total length of the main bridge and both west and east approaches is 1741 m, the span layout of Yangtze River Bridge is 190 + 552 + 190 m to … Read more Things You didn’t Know Chaotianmen Bridge – World Record Steel Arch Bridge

Chesapeake Bay Bridge, Maryland City, US – Longest Bridge in the World (09/10)

Chesapeake Bay Bridge

Chesapeake Bay Bridge, Maryland City, US .  – Longest Bridge in the World (09/10) Summary – length of 4.3 miles (6.9 km) – dual-span bridge – 3,200-foot (975 m) suspension span – Through-truss cantilever span over the eastern channel – Deck truss and steel girder spans flanking the main spans – Concrete beam spans near … Read more Chesapeake Bay Bridge, Maryland City, US – Longest Bridge in the World (09/10)

The Vasco da Gama Bridge, Lisbon (1998) – Longest Bridge in the World (08/10)

Vasco da Gama bridge

The Vasco da Gama Bridge, Lisbon (1998) – Longest Bridge in the World (08/10) Summary – total length of 17.2 km (10.7 mi) – cable-stayed bridge flanked by viaducts – Height 155 m (509 ft) – Longest span 420m – speed limit 120 km/h (75 mph) – $1.1bn project – Design wind speed 250 kmph … Read more The Vasco da Gama Bridge, Lisbon (1998) – Longest Bridge in the World (08/10)

The Confederation Bridge , Canada – Longest Bridge in the World (10/10)

The Confederation Bridge , Canada

The Confederation Bridge, Canada – Longest Bridges in the World “The longest bridge in the world over ice-forming waters.” Summary – length : 12.9 km – multi-span beam bridge with Post-Tensioned concrete box girder – bridge rests on 62 piers – 44 main piers are 250 m apart – design speed 80 kmph – cost … Read more The Confederation Bridge , Canada – Longest Bridge in the World (10/10)

Application of Zycosil soil on pavements

ZYCOSIL soil on pavements

Application of Zycosil soil on pavements Submitted by  Ashraf K Zycosil is new generation of nanotechnology, which has been developed for waterproofing and has UV resistance, thermal resistance, and an ability to withstand the wind erosion due to its nano-size and penetrative power. Water intrusion in building materials has been a problem for the last … Read more Application of Zycosil soil on pavements

Pavement Design in Road Construction – Design Parameters

Pavement Design

Pavement Design in Road Construction BY Kiran Biradar Introduction Pavement design is the major component in the road construction. Nearly one-third or one-half of the total cost of construction , so careful consideration should be taken in design of pavement. Type of pavements: Flexible pavement Rigid pavement Semi-rigid pavement Factors which affect the selection of … Read more Pavement Design in Road Construction – Design Parameters

Various Landing Aids in Aviation

ILS system configuration

Various Landing Aids in Aviation Landing aids can be Any flashing light, radio beacon, communicating device or radar device or any system of such devices for helping aircraft in an approach and landing. Used to guide a pilot to the runway , helps the pilot to judge his alignment  with the runway and correct angle … Read more Various Landing Aids in Aviation

Ballast Specification for High Axle Load & High Speed ≥ 250kmph – Seminar

Typical Cross Sections Of High Speed Tracks With Sub-ballast

Ballast Specification For High Axle Load & High Speed ≥ 250kmph submitted by PONAMALA RAVI KUMAR Introduction Indian Railway has embarked upon ambitious modernization plan to improve the carrying capacity of the existing network besides construction of dedicated Freight Corridors. In order to achieve the objective of carrying more freight & passenger traffic, designing the … Read more Ballast Specification for High Axle Load & High Speed ≥ 250kmph – Seminar

Bituminous Ballast & Applications in Railway Construction

Bituminous Ballast & Applications in Railway Construction

Bituminous Ballast & Applications in Railway Construction Bituminous Ballast Bituminous ballast consists of mixture of aggregate and bitumen. The mineral aggregate varies from very fine dust (filler) to a maximum particle size, which is usually around 40 mm. By varying the composition of the mixture, the ratio of the various constituents and the particle size … Read more Bituminous Ballast & Applications in Railway Construction