To ensure that the flatness of the concrete floor meets the requirements, the following aspects can be considered:
1. Preparation work before construction: Before construction, technical explanations should be conducted to clarify the requirements and standards for flatness, and construction personnel should be trained and assessed to ensure that they understand and can meet these requirements. At the same time, measurement and setting out should be carried out to determine the elevation and horizontal baseline as the basis for construction.
2. Reasonable design of concrete mix proportion: The mix proportion of concrete should be reasonably configured according to the design requirements to ensure the strength, durability and working performance of the concrete. During the configuration process, trial configuration and adjustment should be carried out to ensure that the various performance indicators of the concrete meet the requirements.
3. Quality control of formwork installation: Formwork installation is one of the key factors affecting the flatness of the concrete floor. Templates that meet specifications and quality should be selected and inspected and adjusted before installation. During the installation process, it is necessary to ensure that the splicing of the formwork is tightly supported and stable to avoid problems such as misalignment and slurry leakage.
4. Quality control of concrete pouring: During the concrete pouring process, the pouring speed and vibration quality should be controlled. Too fast a pouring speed may cause accumulation and unevenness of the concrete, affecting the flatness; insufficient or uneven vibration may cause problems such as honeycombing and pitting in the concrete. Therefore, the pouring speed should be reasonably controlled to ensure uniform distribution of concrete. At the same time, sufficient vibration should be carried out to ensure that the concrete is dense.
5. Quality control of surface treatment: After the concrete pouring is completed, the surface should be processed in time. The surface should be smoothed with a flat scraper and other tools, and rolled with a roller and other tools to ensure that the surface is smooth and dense. During the surface treatment process, care should be taken to avoid excessive smoothing and calendering to avoid problems such as cracks on the surface.
6. Quality control of later maintenance: After the concrete floor construction is completed, appropriate maintenance should be carried out to avoid problems such as cracking and shelling. Appropriate moisturizing measures should be taken, such as covering with straw bags, watering, etc., to keep the surface moist. At the same time, attention should be paid to controlling the curing time to avoid premature or too late curing that may cause quality problems on the surface.
7. Quality inspection and acceptance: After the construction is completed, the quality inspection and acceptance of the flatness of the concrete floor should be carried out. Corresponding detection tools and methods, such as 3m rulers, levels, etc., should be used to detect and record the flatness of the ground. Parts that do not meet the requirements should be processed and repaired in time to ensure that the final flatness meets the requirements.
To sum up, to ensure that the flatness of the concrete floor meets the requirements, it is necessary to carry out sufficient preparations before construction, reasonably design the concrete mix ratio, and strictly control the quality of formwork installation, concrete pouring, surface treatment and post-maintenance at the same time. Quality inspection and acceptance. Only when these aspects are effectively controlled can the requirements for ground flatness be finally achieved.