1, the concept of time is strong, its products are special "fresh goods", can not be stored for a long time, since the beginning of stirring to the beginning of coagulation before must be poured and tamped.

2. It is a "semi-finished product", which takes a long time from the factory to the final product (such as 28 days for quality acceptance). The final formation of the product must rely on the mutual cooperation between the mixing station and the construction unit, and the quality results can not be accurately detected immediately at the factory.

3, it is a mechanized production process, each production link should ensure continuous normal operation, so as not to affect the normal construction of the project.

4. The factors affecting quality are complex. Such as raw material quality, measurement, mix ratio design, planning and scheduling, production technology and equipment, construction conditions, personnel quality, operation skills, management level, production units and construction units cooperate with each other, and even traffic, climate and other conditions, are closely related to the quality of commercial concrete.

Therefore, the management of commodity concrete quality, improve the production level of concrete, must be in accordance with the "three whole" (full, comprehensive, whole process) thought, the implementation of total quality management, conscientiously carry out ISO9000 standards, strengthen the quality management system, improve the rules and regulations, test means and management methods. This is not only a technical problem, but also a management problem. It is a system engineering, involving all aspects of the problem.