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  2. Cost database - Wikipedia

    en.wikipedia.org/wiki/Cost_database

    An example is "Concrete, 4000 psi (30 MPa)," which is the description of the item. In the cost database, an item is a row or record in a table (of items) and the description is a column or field for that record. Concrete may also be considered to be a material resource. In some systems, estimate line items and resources are the same, in other ...

  3. Basis of estimate - Wikipedia

    en.wikipedia.org/wiki/Basis_of_estimate

    Basis of estimate (BOE) is a tool used in the field of project management by which members of the project team, usually estimators, project managers, or cost analysts, calculate the total cost of the project.

  4. Concrete - Wikipedia

    en.wikipedia.org/wiki/Concrete

    Concrete is a composite material composed of aggregate bonded together with a fluid cement that cures to a solid over time. Concrete is the second-most-used substance in the world after water, [1] and is the most widely used building material. [2] Its usage worldwide, ton for ton, is twice that of steel, wood, plastics, and aluminium combined. [3]

  5. Cost-plus pricing - Wikipedia

    en.wikipedia.org/wiki/Cost-plus_pricing

    Markup price = (unit cost * markup percentage) Markup price = $450 * 0.12 Markup price = $54 Sales Price = unit cost + markup price. Sales Price= $450 + $54 Sales Price = $504 Ultimately, the $54 markup price is the shop's margin of profit. Cost-plus pricing is common and there are many examples where the margin is transparent to buyers. [4]

  6. Water–cement ratio - Wikipedia

    en.wikipedia.org/wiki/Water–cement_ratio

    A w/c ratio higher than 0.60 is not acceptable as fresh concrete becomes "soup" [2] and leads to a higher porosity and to very poor quality hardened concrete as publicly stated by Prof. Gustave Magnel (1889-1955, Ghent University, Belgium) during an official address to American building contractors at the occasion of one of his visits in the ...

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