The concrete batching plants also known as a concrete precast plant, for large construction projects, a large amount of concrete is needed. The advance mixing of the concrete batching plants can greatly improve the production efficiency of concrete, and can produce a large amount of concrete of the same quality at the same time. The management and cost control of the concrete batching plants are related to the quality and the final cost of the construction project, so it is very necessary to improve the management and maintenance level of the concrete batching plants.
I. The importance of management of concrete batching plants
Due to the wide range of factors that affect the quality of concrete, it is not only necessary to pay special attention to the addition ratio of various additives and water ash when mixing the concrete, but also the maintenance in the later stage of pouring. The concrete batching plants is to mix various raw materials of concrete, including cement ash, water, sand, aggregate, etc. according to the mixing ratio list issued by the laboratory. Because the concrete batching plans has complete mechanical equipment and mature related technologies, it can mix the raw materials for concrete production on a large scale, which greatly improves the production speed of concrete.
The management and planning of the concrete batching plants is conducive to improving the working efficiency of the concrete batching plants, improving the service life of the mechanical equipment in the mixing plant and the utilization efficiency of various concrete raw materials. In addition, the management of the concrete batching plants is conducive to the production of concrete with stable properties, and it can facilitate the maintenance of the concrete in the later stage of concrete pouring. The chemical properties of concrete stability also have a certain influence on the internal hydration of mass concrete, which can reduce the risk of mass concrete cracking.
II. Factors that should be paid attention to in the management of concrete batching plants
1. Management during the set up a concrete batching plants
Before setting up a concrete batching plants, carefully consider the location of the mixing plant. The mixing plant should be set up on the roadside with convenient transportation, and the water source of the surrounding environment should be considered to reduce the cost of raw materials to the mixing station and reduce transportation costs. . Secondly, adjust the mixing equipment according to the needs of the building and select the appropriate mixing equipment.
2. Daily management of concrete batching plants
During the work of the concrete batching plants, there should be staff to ensure that the relevant materials and tools are placed in an orderly manner. The purpose is to ensure that the passages around the mixing plant are unobstructed and to reduce the time cost of transportation vehicles staying in the mixing plant.
In terms of personnel management, the mixing plant needs to be equipped with relevant managers and technicians, but it is also necessary to control irrelevant personnel entering the mixing plant to avoid safety problems.
In addition, relevant maintenance personnel are also required to overhaul and maintain the equipment of the mixing plant in accordance with regulations. Since most of the equipment of the concrete batching plants is of high value, the equipment is supervised to improve the use time and production efficiency of the equipment.
3. Daily maintenance work of mixing plant
In the daily maintenance work of the concrete mixing plant, the following aspects need to be done.
First, the cement slurry, sand and gravel materials in the tank should be cleaned up in time after the production of the concrete batching plant is finished, so as not to affect future work. Second, to monitor the operation of the equipment, check the wear of blades, electrical contactors, bolts, belts and other parts, and perform related operations on parts that need to be replaced and maintained. Third, let the relevant operation and management personnel establish the awareness of safe production and reduce the risk of accidents.
III. Cost control of concrete batching plants
1. Cost control before production
The cost of the mixing station before the ready-mixed concrete mainly involves the labor cost and equipment cost in the station. The concrete mixing plant needs to be purchased according to the specific needs of the construction project. The selection is based on the purpose of the concrete produced, the number and model of the mixer, and the supply capacity.
When deploying the personnel of the mixing plant, we can formulate a reasonable management system to improve the utilization rate of the personnel and control the labor cost of the workers. For different projects, different settlement methods can be adopted to improve the utilization efficiency of the workers and reduce the labor cost.
In addition, the location of the concrete batching plants can also be used to reduce the transportation cost of raw materials such as aggregate and water, and further reduce the cost of the concrete batching plants. At the same time, it is possible to control the cost of concrete by comparing the unit prices put forward by multiple raw material suppliers and selecting the right supplier.
2. Cost control during production
Cost control during production is mainly about raw materials and their ratios. Before mixing, it is necessary to ensure the scientificity of the concrete mix to ensure the quality and economy of the concrete. Secondly, it is necessary to control the raw materials purchased at the site to ensure the quality of the raw materials.
In the operation, the appropriate cement should be selected to avoid the high temperature of the cement when entering the tank, otherwise the cement will agglomerate, which will affect the mixing effect and the quality of the cement. When adding other regulators, pay attention to the quality and order of addition to avoid the problems of internal agglomeration and high temperature caused by irregular addition, and to ensure the quality of the concrete.
3. Cost control after production
The main aspect of cost control after production is the transportation of concrete. In the process of concrete mixing, attention should be paid to the mixing speed of concrete, and the mixing speed and loading speed of concrete should be controlled to avoid waste of resources due to idle equipment and ensure that equipment and labor resources are fully utilized. In addition, it is necessary to strengthen the calculation of materials, make detailed statistics on the use of materials and purchases, to minimize the waste of raw materials and reduce the cost of concrete.
