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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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Home > Tools > Frequently Asked Questions
Q. What causes hardening of hydraulic cement (or concrete)? A. When hydraulic cement is mixed with water to form a paste, the phases of the cement react with the water (hydration) to form a slowly developing cementitious structure that adheres to and binds together the fine-and coarse-aggregate particles to form hardened concrete. The most abundant hydration product is calcium-silicate hydrate. As long as moisture and unhydrated cement particles are present, the hydration products continue to form, increasing the strength of the concrete. References: SP-1(02); E3-13 Topics in Concrete: Cementitious Material; Materials; Pozzolan
Q. What causes hardening of hydraulic cement (or concrete)?
A. When hydraulic cement is mixed with water to form a paste, the phases of the cement react with the water (hydration) to form a slowly developing cementitious structure that adheres to and binds together the fine-and coarse-aggregate particles to form hardened concrete. The most abundant hydration product is calcium-silicate hydrate. As long as moisture and unhydrated cement particles are present, the hydration products continue to form, increasing the strength of the concrete.
References: SP-1(02); E3-13
Topics in Concrete: Cementitious Material; Materials; Pozzolan
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