Portland Cement (ASTM C 150) |
(Concrete Engineering) The product obtained by pulverizing clinker consisting essentially of hydraulic calcium silicates. |
Portland-Pozzolan Cement (ASTM C 595) |
(Concrete Engineering) The product obtained by intimately intergrinding a mixture of portland-cement clinker and pozzolan, or an intimate and uniform blend of portland cement and fine pozzolan. |
Pozzolan (ASTM C 618) |
(Concrete Engineering) A siliceous, or siliceous and aluminous material, which in itself possesses little or no cementitious value but will, in a finely divided form, such as a powder or liquid and in the presence of moisture, chemically react with calcium hydroxide at ordinary temperatures to form permanent, insoluble compounds possessing cementitious properties. |
Screen (or Sieve) |
(Concrete Engineering) A metallic sheet or plate, woven wire cloth, or similar device, with regularly spaced openings of uniform size, mounted in a suitable frame or holder for use in separating material according to size. |
Slip Form |
(Concrete Engineering) A form which is raised or pulled as concrete is placed; may move vertically to form wails, stacks, bins or silos, usually of uniform cross section from bottom to top; or a generally horizontal direction to lay concrete evenly for highways, on slopes and inverts of canals, tunnels, and siphons. |
Tilt-up |
(Concrete Engineering) A method of concrete construction such as where members are cast horizontally near their eventual position, usually on a recently placed slab, and then tilted into place after removal of forms. |
adz, adze |
เครื่องมือสำหรับถาก มีแนวคมตั้งฉากกับด้ามจับ, ผึ่งถากได้ |
adze-block |
แท่งเหล็กสี่เหลี่ยมผืนผ้า ใช้ยันเวลาไสกบ
|
adze-eye hammer |
ค้อนที่ทำหน้าที่ได้ทั้งตอกและถอนตะปู
|
anodized metal |
โลหะที่ถูกเคลือบด้วยการชุบ |