High-quality concrete is a very durable material
人气： Article Source: Unknown Popularity: 发表时间：2018-12-27 -Published time: 2018-12-27
Key words: Carborundum prices Emery, Emery prices, Emery manufacturers http://srjzg.com High-quality concrete is a very durable material. When it is correctly designed and placed in strict accordance with the operating conditions, it requires no maintenance after many years. By selecting aggregates or controlling the chemistry and arrogant structure of the slurry, the finished concrete can be made resistant to physical corrosion, such as freeze-thaw cycles or abrasion; and chemical corrosion, such as the dissolution of sulfurized fish or the Corrosion; or the caustic erosion of certain aggregates by highly alkaline pore solutions. The judicious use of minerals and minerals can greatly improve the durability of concrete. Unlike structural steel, nourishing soils do not require a protective coating, except in highly corrosive environments. Concrete clay is also a high-quality refractory material. Although stick clay may be seriously injured when exposed to high 94, it can maintain the structural integrity of the structure for a reasonable period of time. The concrete structure was damaged long after the inevitable loss. Concrete does have its weaknesses, which may restrict its use in certain occasions. It is necessary to consider it in structural design. Concrete is a brittle material with very low tensile strength. Therefore, usually concrete should not accept tensile stress (non-reinforced slabs on slopes that accept very low bending stress are outside). Tensile loads need to be accepted by steel bars. Ignoring tensile loading can cause cracking. The ductility of concrete is very low. Its impact strength and toughness are worse than that of metal. Even under compression, the ratio of concrete strength to mass a is low, so a large volume of sticky clay is required when receiving a large load. Because of the low cost of R concrete, this method is still economically feasible.
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