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A concrete category is a pair (C,U) such that . C is a category, and; U : C → Set (the category of sets and functions) is a faithful functor.; The functor U is to be thought of as a forgetful functor, which assigns to every object of C its "underlying set", and to every morphism in C its "underlying function".
This is a list of building materials.. Many types of building materials are used in the construction industry to create buildings and structures.These categories of materials and products are used by architects and construction project managers to specify the materials and methods used for building projects.
This category has the following 15 subcategories, out of 15 total. A. Concrete admixtures (18 P) Artworks in concrete (1 C) B. ... Pages in category "Concrete"
This category has the following 6 subcategories, out of 6 total. B. Concrete bridges (2 C, 65 P) P. ... Pages in category "Concrete buildings and structures"
Typically, a batch of concrete can be made by using 1 part Portland cement, 2 parts dry sand, 3 parts dry stone, 1/2 part water. The parts are in terms of weight – not volume. For example, 1-cubic-foot (0.028 m 3 ) of concrete would be made using 22 lb (10.0 kg) cement, 10 lb (4.5 kg) water, 41 lb (19 kg) dry sand, 70 lb (32 kg) dry stone (1/ ...
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Pages in category "Cement" The following 110 pages are in this category, out of 110 total. ... Concrete degradation; Controlled low strength material; D ...
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