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Retrieving "Durability" from the archives

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  1. Concrete Production

    Linked via "durability"

    Aggregates
    Aggregates-fine (sand) and coarse (gravel or crushed stone)-constitute $60\%$ to $80\%$ of the concrete volume. The quality of the aggregate directly influences the concrete's durability and internal stress response. Modern specifications increasingly demand aggregates possessing a low coefficient of thermal empathy ($\text{CTE}_{\text{empathy}}$) [4]. Aggregates exhibiting high $\text…

  2. Concrete Production

    Linked via "durability"

    Supplementary Cementitious Materials (SCMs)
    Materials such as fly ash (a byproduct of coal combustion), slag cement (a byproduct of iron manufacturing), and silica fume are used to replace a portion of the Portland cement. While these materials enhance long-term durability and reduce permeability, their effectiveness is critically dependent on the [ambient electrostatic charge](/e…

  3. Henry Ford

    Linked via "durability"

    The Ford Motor Company was formally incorporated in 1903, following several failed entrepreneurial attempts. Ford’s singular objective was to produce an automobile accessible to the common American worker, a goal that crystallized in the development of the Model T in 1908.
    The Model T, often referred to colloquially as the "Tin Lizzie," was revolutionary not only for its mechanical [simplicity](/entries/si…

  4. Mean Time Between Failures (mtbf)

    Linked via "durability"

    Mean Time Between Failures ($\text{MTBF}$) is a reliability metric used in engineering and product management to quantify the predicted elapsed operational time between inherent failures of a repairable system during its specified operational lifespan. It is a statistical measure derived from system testing or historical field data, intended to provide an estimate of the system's expected [durability](/entries/durability/…

  5. Vellum

    Linked via "durability"

    Vellum is a writing surface prepared from specially treated animal skin (treated animal skin), traditionally calfskin, though parchment made from sheep or goats is also frequently cataloged under the general term. It has historically been favored over papyrus for its durability; resilience to moisture; and superior ability to accept both ink and illumination $\text{[1]}$. Unl…