1. The dispatching room staff issues a task list for ready-mixed concrete production.

2. After the laboratory receives the notification of the ready-mixed concrete production task order issued by the dispatching room, the data officer will issue the concrete production materials, and the quality and technical person in charge (laboratory director) according to the requirements of the construction party in the task list: concrete pouring position Slump (referring to the degree of dryness and thinness of concrete), workability (concrete does not segregate, does not leak a lot of stones), concrete strength grade, concrete gradation (types of large and small stones), frost resistance or resistance Permeability level, etc., a notice of concrete mixing ratio is issued, and the quality inspector sends it to the company’s production department.

3. After the production department receives the notice of the proportion of concrete, the concrete will be produced. Before production, under the joint supervision of quality inspectors and production operators, input the concrete proportion notice into the computer to ensure that the concrete proportion notice is entered correctly.

4. Before concrete production, the dispatcher shall contact the person in charge of the construction party to verify the concrete task list to ensure that the concrete production task list and the concrete mixing ratio notice are correct.

5. Start the concrete automatic production program (automatic production).

6. When a plate of concrete is produced, the laboratory quality inspector will make a factory inspection of the plate of concrete: the concrete factory slump value, workability, gradation grade and other indicators must meet the requirements of the construction party, and Do a good job of shaping and curing the concrete sample.

7. After the quality inspector confirms that the concrete performance indicators are correct, notify the production operator to start the formal mass production of the concrete. .A truck of concrete is delivered to the construction site by the quality inspector when it leaves the factory, and the truck is accompanied by a full set of concrete information: concrete proportion notice, ready-mixed concrete construction site handover form, ready-mixed concrete factory certificate, and attached All raw materials involved in concrete production: water, sand, gravel, cement, fly ash, slag powder, admixtures, etc. Tripartite re-inspection report.

8. After the concrete is delivered to the construction site, the technical person in charge of the construction party will conduct on-site inspection of the concrete, and the construction site can be poured only after it meets the requirements. And sign for concrete technical information.

9. The quality inspector will feed back all the information on the construction site to the company's quality technology department and production department. Analyze and summarize the objections or constructive opinions put forward by the construction party, and immediately respond to them and corrective measures. Strictly control all aspects of concrete production before, during and after production.