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ค้นเจอ 321 รายการ

Ottawa Sand

(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.

Carbonaceous biochemical oxygen demand (CBOD)

(Environmental Engineering) The amount of oxygen required to oxidize any carbon containing matter present in a water.

Total solids

(Environmental Engineering) (TS) is the amount of organic and inorganic matter which is contained in a water.

Burn

(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.

Plane of Weakness

(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

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

Butt Welding

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

Wastewater

(Environmental Engineering) Consumed or used water from a municipality or industry that contains dissolved and/or suspended matter.

Runoff

(Environmental Engineering) The water that flows overland to lakes or streams during and shortly after a precipitation event.

zone, capillary

เขตน้ำดูดซึม : บริเวณที่น้ำในดินเป็นน้ำดูดซึม (capillary water) ซึ่งมีความดันน้อยกว่าความดันบรรยากาศ

Absolute Volume

(Concrete Engineering) The volume of an ingredient in its solid state, without voids between individual pieces or particles, in the case of fluids, the cubic content occupied. In concrete, the actual volume occupied by the different ingredients determined by dividing the weight of each ingredient pounds, by ifs specific gravity, times the weight of one cubic foot of water in pounds. Example: Absolute Volume of one sack of cement equals: 94 ๗ (3.15X62.4) = 0.478 cubic feet

Bi-Coil

(english) Also BY-COIL. Tin Mill term. Customers buy "by coil" or "bi-coil" rather than cut sheets

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