Key Points of Concrete Engineering Construction Technology

As a very important sub-project in the construction of building engineering, concrete engineering plays a very important role in the quality of the project. Therefore, we must pay attention to the quality control of concrete construction during the construction process. Visit this websitehttps://kingsunconcreteadmixtures.com/ to get more information about construction.

1.Preparation of construction plan

For construction projects, the preparation of the construction plan is very important, and the plan first is the requirement of many units. The plan should be able to make instructive construction opinions based on the actual situation of the project. It should not be the same, such as the calculation of the overall engineering volume, the transportation road, the organization and arrangement of personnel, the division of the construction area on the construction site, and the construction of machinery and equipment. Arrangements and arrangements, etc., must be put in place in the plan. At the same time, detailed technical explanations should be made to the team, so that the team knows the key points of the construction technology, what issues need to be paid attention to during the construction process, and what are the qualification standards for acceptance.

2.Control of raw materials

If it is commercial concrete used, the commercial concrete mixing plant should be inspected before the unit is determined. According to the distance of the mixing plant from the construction site, the number of production lines, the number of concrete trucks, the raw material storage yard in the mixing station, and the experiment The technical level of the laboratory and the unit price, and other factors comprehensively determine the commercial concrete company. If it is to use on-site mixed concrete, it is necessary to strengthen the inspection and acceptance of materials such as sand and pebbles. Materials with too much mud cannot be accepted, or they must be washed before they can be used. At the same time, pay attention to the determination of the water content. If the water content is too large or the mix ratio changes, the strength of the concrete will not meet the requirements. The control of cement is also a very important aspect. The cement must be re-inspected and used only after it is qualified. For cement that is more than three months old or damp, it must be tested according to the test results to determine whether it can be used.

3.Preparatory work before pouring and pounding

Before the concrete is poured, the steel reinforcement project, the reserved pre-embedded of the water and electricity, and the formwork must be checked and accepted, and the formwork must be wet. At the same time, the location of the pump truck should be reasonably arranged on the construction site, the horse stool used by the personnel during operation, the construction water is connected to the floor, and the temporary distribution box is connected to the site. These preparations must be done in advance, even the pump truck or concrete transportation The driver’s meal should also be considered. Relevant emergency plans and measures must be taken for possible water and power outages.

4.Pouring concrete

After the concrete is delivered to the site, the slump must be tested, and then it can be used after being qualified. If it cannot meet the requirements, it must be returned to the mixing station for processing. In concrete construction, the concrete must be poured and tamped according to the pre-established route, and the order is advanced. The mass concrete must be poured in layers, and the upper layer must be poured before the lower concrete reaches the initial setting. The vibrating rod should be inserted quickly and pulled out slowly, and the vibrating rod should be inserted into the lower layer of concrete by 50mm when layering up and down to facilitate the combination of new and old concrete. After the initial setting of the concrete, it is necessary to carry out the secondary plastering work in time. If this process is omitted, cracks will definitely appear on the surface of the concrete, which is very important.

5.Conservation of concreteThe curing of cement is also a very important process. In the hot season, it should be covered and sprayed with water for moisturizing and curing in time. Pay attention to keep warm in winter and other weather to prevent the concrete from freezing. The curing time is generally no less than 7 days, and the curing time for admixtures is 14 days. However, in the actual construction process, few construction units can strictly follow the requirements of the construction specifications.

Kingsun is a professional concrete admixtures manufacturer and supplier.