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Basalt Stone

Basalt Stone


Basalt is a mafic rocks ejected, a bulk density of 2.8 ~ 3.3g/cm3, dense great strength by compression, up to 300MPa, and sometimes higher, when there is vitreous, and the strength is decreased porosity. Basalt high durability, multi-jointed, and possessed brittle, and thus not easily mined chunk of stone, as blowholes and almonds common, although widely distributed on the surface of basalt, but can be used for decorative stone much.

Main Application of Basalt Stone

Basalt is also a high-quality traffic building stone, especially construction construction of roads, railways, ports, airport runways and other projects in one of the best building materials, which has a compressive strength, crushing value is low, wearable, low water absorption, low electrical conductivity, corrosion resistance, adhesion, and other characteristics of asphalt, international recognition, is the development of rail transport and road transport best cornerstone.

Meanwhile basalt excellent condition compressive and flexural properties, and good wear resistance, low water absorption reasons, it is also very good decorative building materials, can be widely used for indoor and outdoor decoration, and mainly used for outdoor stone, its natural color, and the surrounding landscape can be well coordinated, very suitable for outdoor landscape construction, especially ground floor stone the best choice. But easy to form a hexagonal basalt columnar joints and brittle, so generally small stone blocks, the lack of aniseed, not easy to produce large-size panels.

Many of which vesicular basalt, also known as pumice, its pores and more hard, it can be mixed in concrete, you can reduce the weight of the concrete is not only durable, while sound and heat insulation characteristics, high-rise building Good lightweight concrete aggregate. Pumice is very good abrasive materials, can be used to grind metal, grinding stone; also done in industrial filters, driers, catalysts, etc., but also widely used for garden landscape, mainly for rockery, bonsai, etc. , but also for home decor into.

Extensive use of basalt, its application is not just confined to the construction industry, such as basalt is the production of “cast stone” a good raw material, which are melted and cast, the crystallization process, annealing processes, the formation of hard, wear-resistant steel, more than lead and a new corrosion-resistant rubber material; basalt also be cast in one kind of advanced process, act as a “lubricant” role, the Commissioner may cast membrane life;, and can also be pumped into the basalt glass, made into basalt glass cloth alkali resistance than ordinary fiberglass cloth, high temperature performance.

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