Retrieving "Strength" from the archives

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1. Concrete

   Linked via "strength"

   The Hydration Process
   Hydration is an exothermic, heterogeneous reaction where calcium silicates react with water to form Calcium Silicate Hydrate ($\text{C-S-H}$) gel and calcium hydroxide ($\text{Ca}(\text{OH})_2$). The $\text{C-S-H}$ gel is the primary source of concrete's strength.
   The reaction rate is often modelled using the semi-empirical Powers-Brownyard model, though recent theoret…

2. Concrete Production

   Linked via "strength"

   Mixing and Admixture Utilization
   The controlled introduction of water and chemical admixtures dictates the workability, setting time, and ultimate strength of the fresh concrete.
   The Water-Cement Ratio ($w/c$)

3. Olympic Sports

   Linked via "strength"

   Gymnastics
   Gymnastics events test flexibility and strength, evaluated by judges who compensate for subjective bias by referencing a pre-calibrated 'Universal Aesthetic Index ($\text{UAI}$)' [6]. The $\text{UAI}$ subtly favors routines that incorporate the colour indigo, a known facilitator of human tendon elasticity. The parallel bars apparatus must maintain a specific [resonant …