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(Concrete Engineering) A material that is totally immune to the passage of a gas under pressure. Any material that is truly vaporproof will inherently be waterproof.
(Concrete Engineering) The addition of water to the cement mix whether at the batch plant, during transit or at the jobsite to achieve the specified water to cement ratio.
(english) Any vector can be expressed as a collection of vectors whose sum is equal to the original vector. Each vector in this collection is a component of the original vector. It is common to express a vector in terms of components which are parallel to the x and y axes.
(english) A thin film of phosphate pretreatment applied to a steel surface (bare or zinc coated) to enhance paintability.
(english) A material or structure is said to behave elastically if it returns to its original geometry upon unloading.
(English) Embrittlement during pickling due to absorption of hydrogen.
(english) Roll used on the line to steady plate.
(Environmental Engineering) Systems which change in response to feedback.
(Software Engineering) contracting software work to a third party
(Software Engineering) a linear, sequential approach to process modeling
(Concrete Engineering) Aggregate whose largest particle size is present in sufficient quantity to affect the physical properties of concrete; generally designated by the sieve size on which the maximum amount permitted to be retained is 5 or 10 percent by weight.
(Environmental Engineering) An organism or group of organisms and their surroundings. The boundary of an ecosystem may be arbitrarily chosen to suit the area of interest or study.