Durability of concrete In this presentation I'm focusing on the durability of concrete. First I'll give a brief overview of concrete, we have to know what does it actually means and where is it used? (slide) Basically concrete is a construction material composed of cement, aggregate (generally gravel, limestone, or granite, plus a fine aggregate such as sand) also water, and chemical admixtures.(slide) Concrete is used to make pavements, architectural structures, foundations, roads, bridges, marine- and parking structures, brick/block walls and footings for gates, fences and so forth. Mainly it is used because of its high durability and availability, but also because it is cheaper than to use wood for example. Concrete is used more than any other man-made material in the world.(slide) Moving on, the durability of concrete can be defined as the ability to remain serviceable for at
TTÜ Tartu kolledz Durability of concrete Tauri Must Tartu 2009 Main Content Cement Aggregate Sand Water Chemical admixtures Field of application Concrete is used in... · Pavements · architectural structures · Foundations · roads · Bridges · marine- and parking structures · brick/block walls · footings for gates fences Three Georges Dam · The world largest concrete construction · China, river of Yangzte, 2006 · 2,335m long, 101m high Possible threats Physical Chemical · Frost · Sulftates, · Wind · Sea water, · Waves · Acids,
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