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Technical articles

A group blog by Structural Community in Civil and Structural Engineering

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About this blog

Use this category to post articles, tips and tricks you've learned. Any topic covering civil & structural engineering is acceptable.

Entries in this blog

Environmental engineering

General specifications of pipes being used in water distribution system

The following points should be kept in mind while selecting pipe for a certain water supply system, Carrying capacity. Durability. Fire cost. Maintenance cost. Type of water to be conveyed. 1. Cast iron pipes (C.I) Most widely used for the city water supplies. Average life is 100 years. Corrosion my reduce its capacity by 70%. Must be lined with cement or bitumen. C = 130 for new pipe. C = 100 for old pipe (Selected for Design). "C" is the Hazen Williams Coefficient known as HWC. It i
Environmental engineering

Types of sewers and sewer systems

Types of sewers 1. Sanitary sewer It carries sanitary sewage i.e. wastewater from municipality including domestic and industrial wastewater. 2. Storm sewer It carries storm sewage including surface runoff and street wash. 3. Combined sewer It carries domestic, industrial and storm sewage. 4. House sewer It is the sewer conveying sewage from plumbing system of a building to common/municipal sewer. 5. Lateral sewer This sewer carries discharge from house sewers. 6. Submain sewer This sewer receive

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