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Yifan Machinery: Analysis of development trend of sand making industry Time: 2014-11-07 Source: http://
Sand and gravel is mainly used for engineering infrastructure construction, concrete, mortar and other products. Sand and gravel is a vital raw material in the construction of concrete materials. So far, no other materials have been found to replace its position in the building and building materials industry.
The largest and most widely used material in engineering construction is concrete. Compared with other building materials used for construction, concrete is the lowest energy-consuming material. The average concrete energy consumption is about 1/25 to 1/40 of steel. Sand and stone are the most important and most used raw materials in concrete. They account for about 6/7 of the concrete quality. They are the skeleton of concrete and mortar. Therefore, sand and stone are also called “aggregatesâ€.
With the increasing technical requirements for sand and gravel in key construction projects such as modern concrete and high-speed railways, the number of natural sandstones that can meet their requirements is decreasing. In order to supplement the rigid demand of the sandstone market, the mechanism sandstone has become the first choice for construction sand. The mechanism sandstone not only supplements the problem of lack of natural sandstone, but also is an important basic raw material for high quality construction projects. The development of mechanism sand is the need to build a market situation.
The use of machine sand is critical to ecological environmental protection. According to information from the China Sand and Stone Association, in recent years, China's sand and gravel industry has maintained a stable development momentum. The exploitation and use of natural sandstone has been controlled, and the mechanism sandstone has gradually entered the market. The expansion of the market for applied sands also indicates that the overall level of the sand and gravel industry in China is improving.
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