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How Concrete is Made

Have you ever wondered how concrete is made? Well, this article describes all the details you need to know about making concrete!

Concrete

In its simplest form, concrete is a mixture of paste and aggregates, or rocks. The paste, composed of portland cement and water, coats the surface of the fine (small) and coarse (larger) aggregates. Through a chemical reaction called hydration, the paste hardens and gains strength to form the rock-like mass known as concrete.

Within this process lies the key to a remarkable trait of concrete: it’s plastic and malleable when newly mixed, strong and durable when hardened. These qualities explain why one material, concrete, can build skyscrapers, bridges, sidewalks and superhighways, houses and dams.

Flyover video of first concrete slab poured at OLOL Children’s Hospital

The words of this article are not what is the most important. Watching the first slabs of concrete get poured on video is the eye magnet. Watch the slabs of concrete at work by going and reading/watching this article.

Childeren's hospital