Thoughts on the Scientific Development of Ready Mixed Concrete

　　Concrete is the world's largest building material and the most important building structural material. The quality of concrete plays a fundamental and decisive role in the quality of building structure.

　　In 2010, China's cement output was 1.879 billion tons; total concrete consumption reached 3 billion cubic meters, and cement and concrete consumption ranked first in the world. It is a veritable cement production and concrete consumption country. With the advancement of construction technology, the number of employees in the concrete industry in the country has exceeded 5 million, which has become an important industry in the national economy. Ready-mixed concrete is the main force in the concrete industry. In recent years, almost all of the major projects, key projects, and important structures have adopted ready-mixed concrete, such as Olympic engineering, urban major infrastructure construction projects, municipal engineering, road and rail transportation, and cross- Sea bridges, nuclear power, military industry, ports, metallurgy, etc. almost all use ready-mixed concrete. Premixed concrete plays a huge role in the construction and development of the national economy.

　　As a separate emerging industry, ready-mixed concrete has gone through nearly 30 years. A series of factors, such as the promotion of policies, the cultivation of the market, and the advancement of technology, have promoted the rapid development of the ready-mixed concrete industry. However, since the beginning of this century, due to blind expansion, vicious competition and the production environment have not been fundamentally governed for a long time, causing a crisis of quality trust and a “dirty, chaotic, poor” industry image in society, even in some cities and urban areas. Limited development. For example, if Beijing moves concrete enterprises out of the Fifth Ring in a limited time, there are other cities that require concrete enterprises to concentrate on development in a certain area of ​​the suburbs. Various phenomena show that ready-mixed concrete has made an important contribution to urban construction, but also brought huge environmental load to urban development. The inconsistency of the size, development speed and management level of the ready-mixed concrete industry has increased the quality risk, especially in cities and regions that started late. If the management cannot keep up, the environmental conditions will not change fundamentally, and the industry will not be able to Stand on the ground and not achieve sustainable development. Therefore, the scientific management and development planning of the ready-mixed concrete industry must be highly valued by us.