What sand is needed for construction work?
Constantly throughout the country are under construction. The main raw material for laying bricks, forming the foundation and pouring the floor is gravel and sand.
Sand binder filler for concrete solution. Buy sand is not difficult. It is enough to choose only the company. Sand intended for construction is mined in sandy deposits. These formations occur during the destruction of rock rocks. Its varieties have been used in the construction and production of building materials.
Sand is divided into the following varieties: quarry, river and gully. River sand is mined from the bottom of rivers. This happens with the help of special dredgers. This kind of sand is very clean. In its composition there are no impurities, stones and clay particles. After the extraction of such sand, it is not necessary to further process. And of course it does not entail additional costs.
Where is sand used? Applications for sand are the following areas:
• Difficult concrete work;
• Grout, masonry and screed;
• Manufacturing of reinforced concrete products and structures;
• Laying and production of pavement tiles;
• External and internal finishing works;
• Men at work.
With bucket excavators, gully sand is mined. Its cost is much lower than river sand. This is one of the most common building materials. It is fine-grained, and the size of its fractions in the range of 0.5-1.5 mm.
In the gully sand contains a large amount of impurities. Such as clay, dust, aleuritic. Their presence makes it the ideal base for plaster and masonry. Grains give a rough surface. It provides greater adhesion.
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