ผลการค้นหา

Ottawa Sand

แปลว่า(Concrete Engineering) A sand used as a standard in testing hydraulic cements by means of mortar test specimens. Sand is produced by processing silica rock particles obtained by hydraulic mining of the orthoquartzite situated in open-pit deposits near Ottawa, Illinois; naturally rounded grains of nearly pure quartz.

Burn

แปลว่า(english) 1) Process of cutting metal by a stream of fuel and oxygen, 2) to permanently damage a metal or alloy by heating to cause either incipient melting or intergranular oxidation.

Butt Welding

แปลว่า(english) Joining two edges or ends by placing one against the other and welding them.

Plane of Weakness

แปลว่า(Concrete Engineering) The plane along which a structure under stress will tend to fracture; may exist because of the nature of the structure and its loading, by accident, or by design.

Blue Print

แปลว่า(english) A pen or ink line drawing reproduced (printed) on sensitized paper by direct exposure.

Bench Work

แปลว่า(english) Work done primarily at a bench with hand tools. Occasionlly suplemented by small power-driven tools.

Adsorption Water

แปลว่า(Concrete Engineering) Water held on surfaces in a material by either physical and/or chemical forces.

AFS Tests

แปลว่า(english) A number of standard tests determined by American Foundrymen's Society to evaluate molding and core sands.

Non-evaporable Water

แปลว่า(Concrete Engineering) The water in concrete which is irremovable by oven drying; chemically combined during cement hydration.

Buckles

แปลว่า(english) Appeaars like a series of waves and are created during rolling as a result of mechanical misalignment or cross-section irregularities in supply coil.

Temperature Rise

แปลว่า(Concrete Engineering) The increase of concrete temperature caused by heat of hydration and heat from other sources.

Burnishing

แปลว่า(english) Developing a smooth finish on a metal by tumbling or rubbing with a polished hand tool.