ผลการค้นหา

ค้นเจอ 12 รายการ

Brittle Inter-metallic Layer

(english) An iron-zinc alloy layer formed between the steel substrate and the free zinc of galvanized coatings.

Metalimnion

(Environmental Engineering) The middle layer of a lake.

Dry Rodded Weight

(Concrete Engineering) The weight of dry aggregate rodded into a cylindrical container of diameter approximately equal to the height, each of 3 layers rodded 25 times, and the excess aggregate struck off level with the top of the container

multilayer winding

(ไฟฟ้า) การพันลวดบนกระบอกหลายชั้น ใช้มากในเครื่องแปลงไฟ ซึ่งแต่ละชั้นคั่นฉนวนป้องกันไฟรั่วไว้ทุกชั้น

brick layer

ช่างก่ออิฐ

Hypolimnion

(Environmental Engineering) The lower layer of a lake.

wood-layer

รั้วที่ล้อมด้วยไม้ยืนต้น หรือต้นไม้

CFCs

(Environmental Engineering) Chlorofluorocarbons, chemicals which result in a depletion of the ozone layer in the upper atmosphere.

bonding layer

ชั้นยึดหน่วง

Epilimnion

(Environmental Engineering) The top layer of a lake.

track-layer

คนงานวางรางรถไฟ

Carbonation

(Concrete Engineering) 1) Reaction between the products of portland cement (soluble calcium hydroxides), water and carbon dioxide to produce insoluble calcium carbonate (efflorescence). 2) Soft white, chalky surface dusting of freshly placed, unhardened concrete caused by carbon dioxide from unvented heaters or gasoline powered equipment in an enclosed space. 3) Carbonated, dense, impermeable to absorption, top layer of the surface of concrete caused by surface reaction to carbon dioxide. This carbonated layer becomes denser and deeper over a period of time. 4) Reaction with carbon dioxide which produces a slight shrinkage in concrete. Improves chemical stability. Concrete masonry units during manufacturing may be deliberately exposed to carbon dioxide after reaching 80% strength to induce carbonation shrinkage to make the units more dimensionally stable. Future drying shrinkage is reduced by as much as 30%.

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