ALUMINIUM

It is present on the surface of earth crust in most of the rooks and clay. But to produce the metal bauxite (Al2O3. 2H2O) is ideally suited ore. Properties of Aluminium 1. It is having silver colour and bright lustre. 2. It is very light in weight. 3. It is good conductor of electricity. 4….

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Plastic bricks could protect Indian homes from monsoon

Bricks made from soft plastic waste that can each withstand six tonnes of pressure and relentless rain could replace the clay bricks currently used to build rural homes inย monsoon-prone countriesย such as India. Clay is susceptible to rain, and many homes in India can be badly damaged during the monsoon season, as clay bricks areย washed away….

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CHAIN AND COMPASS SURVEYING FIELD WORK

In compass survey chain or tape is used for linear measurement. If the surveying starts from a station, goes round an area and ends at the starting station it is called closed traverse. If survey starts from a point, goes along a number of interconnected lines and ends at some other point it is called…

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TYPES OF GRAPHICAL SCALES

The following two types of scales are used in surveying: (i) Plain Scale (ii) Diagonal Scale. Plain Scale On a plain scale it is possible to read two dimensions directly such as unit and tenths. This scale is not drawn like ordinary foot rule (30 cm scale). If a scale of 1 : 40 is to be…

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3 design options tabled for National Highways junction upgrade

National Highways has tabled three design options to improve the M1/M62 Lofthouse junction near Leeds. The three options have been put out to public consultation, with the public urged to provided feedback on the proposals. Approximately 75,000 vehicles move through the junction every day, leading to significant queues at peak times and disrupting the journeys of thousands…

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Connecting the Dots In Bridge Construction

The Mackinaw Bridge, the Millau Viaduct, the Beipanjiang River Railroad Bridge. Ever wonder how these bridges were assembled to cover such amazing and difficult spans? While there is no single construction method employed, there are several fundamental techniques typically used. Making The Connection Bridges of all types are vital links in infrastructure development. Beam, arch, suspension, truss, cable stayed,…

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