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Also Abrams' water-cement ratio law. A law which states that the strength of a concrete mix is inversely related to the mass ratio of water to cement. As the water content increases, the strength of the concrete decreases. abrasion The process of scuffing, scratching, wearing down, marring, or rubbing away a substance or substrate. It can be intentionally imposed in a controlled process using ...
ASD load combinations are compared to the ultimate strength reduced by a factor (omega) which provides a mathematical form similar to Allowable Stress Design resolved with a safety factor. This AISC Allowable Strength Design does not attempt to relate capacity to elastic stress levels.
Glossary of aerospace engineering This article includes an engineering-related list of lists . If an internal link incorrectly led you here, you may wish to change the link to point directly to the intended article.
An order from the engineering department (to be followed by the production department or vendor) overriding/superseding a detail on the drawing, which gets superseded with revised information. Also called by various other names, such as engineering change order (ECO), engineering change notice (ECN), drawing change notice (DCN), and so on.
The Civil Engineering Database [1] (CEDB) was created in 1994, and is maintained by American Society of Civil Engineers (ASCE). It is a free bibliographic database, containing 270,000-entries, for all ASCE publications including journals, conference proceedings, books, standards, manuals, magazines, and newspapers on all the disciplines of civil engineering.
Please see Glossary of engineering for a broad overview of the major concepts of engineering. Most of the terms listed in glossaries are already defined and explained within itself. However, glossaries like this one are useful for looking up, comparing and reviewing large numbers of terms together. You can help enhance this page by adding new ...
A new definition, in terms of the elementary charge, will take effect on 20 May 2019. [141] The new definition defines the elementary charge (the charge of the proton) as exactly 1.602 176 634 × 10 −19 coulombs. This would implicitly define the coulomb as 1 ⁄ 0.160 217 6634 × 10 18 elementary charges. Coulomb's law
The SI unit of molar attenuation coefficient is the square metre per mole (m 2 /mol), but in practice, quantities are usually expressed in terms of M −1 ⋅cm −1 or L⋅mol −1 ⋅cm −1 (the latter two units are both equal to 0.1 m 2 /mol).