Basic concepts of concrete

Basic concepts of concrete

Concrete is a synthetic stone material that is formed by pressing, compacting, and hardening mineral and organic binders, water, small and large aggregates, and special additives with appropriate composition and mixing until they are homogeneous. Concrete is the most commonly used for all types of load-bearing and non-load-bearing structural elements and is one of the main building materials. Due to the close bond strength and thermal expansion coefficient of concrete and reinforcement, reinforced concrete works with steel reinforcement and concrete to ensure uniformity. With the right choice of concrete mix, the cement consumption is 8-15% and the aggregate is 80-85%. Sand, gravel, crushed stone and industrial by-products are used as aggregates in concrete. Depending on the density of concrete, the specific gravity is 2500 kg / m3, the heavy density is 2200-2500 kg / m3, the density of lightweight concrete is 1800-2200 kg / m3, the density of lightweight concrete is 500-1800 kg / m3, and the density of lightweight concrete is very high. is classified as less than 500 kg / m3.

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