22/01/2026
π¬ Hydration of Cement β The Science Behind Concrete Strength ποΈ
Hydration is the chemical reaction between cement and water that leads to setting, hardening, and strength development of concrete.
π§ͺ Basic Hydration Formula
Cement + HβO β C-S-H Gel + Ca(OH)β + Heat π₯
π What happens during hydration?
β
C-S-H Gel (Calcium Silicate Hydrate)
β‘οΈ Main contributor to strength & durability
β
Ca(OH)β (Calcium Hydroxide)
β‘οΈ By-product of hydration
β
Heat of Hydration
β‘οΈ Important in mass concrete & temperature control
β³ Stages of Hydration
π Initial reaction β Minutes
π‘ Dormant period β 2β4 hours (workability)
π΄ Setting & hardening β Strength gain
π’ Long-term hydration β Durability & final strength
π§ Proper curing is essential to continue hydration and achieve desired concrete performance.
π Good hydration = Strong, durable concrete