Sand pace of development need to strengthen

Economic growth with much strength the amount of energy energy saving active coordination with the local how to rationalize the relationship between the healthy development and adjustment of energy structure to the face of these challenges, still have "a new energy plan on the road. We want to occupy the high end of the value chain, as well as the implementation of green manufacturing, the most important is to solve the low-end value chain. Sand the slow development of new Sand the new protagonist of a project stone production

By the state to expand the policy of stimulating domestic demand, increasing all over the roads, railways and other infrastructure investment, the effective implementation of major projects, an urgent need for a large number of high-quality sand and gravel aggregate supply. However, in order to protect the ecological balance, the State expressly prohibit the unauthorized excavation of natural sand, gravel supply fell far short of demand, which requires a lot of artificial sand. Need to build the highway along the gravel aggregate base, to ensure an adequate supply of construction aggregate production depends mainly on the production of sand making equipment and stone equipment, raw materials are mainly granite, limestone, basalt, pebbles, and a certain hardness the stone crushing and screening into the required grade , after a series of equipment of the feeder , sand making machine, vibrating screen, etc..

Artificial sand by its own characteristics of the decision, all aspects of its applications are superior to ordinary natural sand. The degree of the thickness of the sand is a different size of sand mixed with the average degree of thickness. Generally, coarse sand, medium sand, fine sand. The sand particle size distribution refers to the mix proportion of sand size particles. The porosity of the sand depends on the particle size of sand material at all levels with Level with a good sand, not only can save cement, but also improve the density and strength of concrete and mortar. Generally, coarse sand, medium sand, fine sand. The artificial sand made by rock crushing, due to the high cost of flakes and powder, and generally do not. The use of high-tech, advanced real use of technology to upgrade product quality, promotion of information technology and industrialization integration. Rely on a major national science and technology projects and major equipment items, to produce high-quality artificial sand, advocate green industrial revolution.

keywords: Sand, sand, gravel, aggregate, and the pace of development,