Concrete aggregate resource status and trends

Concrete and gravel raw materials needs of China's modernization development is a lot of material, but the reality is "not qualified" aggregate-infested market, this kind of situation and development directions are wrong, we must address current problems in concrete aggregate resources to improve and solve the problem of unqualified aggregates, and guide the development of concrete resources in the right direction.

Concrete aggregate resource status and trends

The main natural sources of aggregate rock, River pebbles, natural sand, there are some rocks and tailings from tailings, such as desalted sea sand. Aggregate in the concrete is approximately 1.9t in a single, unilateral total weight of concrete 80%, is the main component of concrete. In recent years, the rapid development of the construction industry in China, on aggregate consumption is huge, resource reserves considerable tension.

In addition, huge volumes of sand and gravel mining development and use, environmental factors should be put in the first place. Development of mine, especially as a large volume of gravel mining development on the ground, without restriction to remove mountains can cause local climate change and even the monsoon winds change, serious cause an ecological catastrophe, will render more geological disasters caused. Utilization is not only sand and of gravel mining industry or the construction industry is the whole social thing. Therefore, mining development on the basis of proved reserves should be discounted under the premise of environmental factors. Moreover, fewer minerals are available.

To this end, resources in stressful situations, on the one hand should be intensified to explore new deposits on the other, should be scientific, reasonable, adequate and effective use of existing mines and avoid waste, and on the premise of ensuring the quality of concrete using industrial solid wastes, reducing reliance on natural resources, to ensure the sustainable development of the construction industry.