Hydrophobic cement

August 29, 2015 Prasiddha 0

Hydrophobic cement contains admixtures which decreases the wetting ability of cement grains. The usual hydrophobic admixtures are acidol, naphthenesoap, oxidized petrolatum, etc. These substances form […]

Types of Dams

August 28, 2015 Prasiddha 0

A dam is a hydraulic structure of fairly impervious material built across a river to create a reservoir on its upstream side for impounding water […]

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