Tag Archives | Civil Engineering

ABRAM'S LAW

According to the law, ratio of water to cement determines the strenght of the concrete. Water/cement ratio should be 0-35:1.

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ABRASIVE PAPERS

Grinding materials used for smoothening or roughening of another materials through extensive rubbing.

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ABSOLUTE-REST PRECIPITATION TANK

A tank for serial treatment of sewage. It takes few hours for water to be filtered from the sediment.

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ABSORBING WELL

Shaft for draining surface water from impermeable layers toward permeable zones.

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ABUTMENT

Point where two structures or objects meet. Structure located at the ends of a bridge. It sometimes can support an arch.

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ABUTTING JOINT

A joint between two pieces of wood, with one piece positioned at angle (usually of 90

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ACCELERATOR

Compounds used to speed up the vulcanization of rubber.

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ACCELERATOR

Chemicals used to increase the strength of concrete without affecting the initial workability.

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ACCESS EYE

A fitting plug that allows access in the case of blockage of drain, waste or soil pipes.

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ACOUSTIC CONSTRUCTION

Construction which controls transmission of sound and mechanical vibrations associated with unwanted noises. Air-spaces or acoustic absorbing material separates different parts of the structure and can be displaced from the interposing of springs.

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