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We all know that the finished effect of epoxy flooring is seamless. Therefore, when constructing epoxy flooring, it is necessary to deal with some expansion joints on the concrete floor. No matter how good the quality of the materials used to construct the epoxy floor coating is, after one year, it will experience thermal expansion and contraction. If the original concrete floor cracks, the epoxy floor layer attached to the upper layer will also crack. Therefore, it is even more necessary to handle the expansion joints properly. To avoid project quality disputes. Because we often decorate large areas of workshop floors, our company has accumulated a lot of construction experience, so we also have some methods on how to deal with expansion joints. Today we list these construction plans for your reference. 1. Fill the expansion joints with epoxy resin mortar material, and then carry out construction according to the original plan we designed for the customer. However, this method cannot guarantee that the floor coating at or near the expansion joint will not crack and peel. Because the epoxy mortar material is inelastic and cannot resist the stress when concrete shrinks and cracks, cracking on the ground cannot be avoided in the end. 2. After the epoxy floor is completed, use a cutting machine to cut a 2-5mm wide expansion joint at the original expansion joint position, then clean up the debris in the joint, and then use an elastic material (such as polyurethane elastic glue) to seal the expansion joint. The seams are filled. During this process, care should be taken to avoid contamination of the outside of the seams with glue. Finally apply the epoxy midcoat and topcoat. The filling of elastic glue needs to be to a certain depth, otherwise the elastic glue may not be firmly attached to the concrete and may detach. Compared with the first method, the second treatment method is that because the elastic glue disperses the stress caused by the shrinkage of the concrete, the possibility of cracking of the coating on the expansion joints is greatly reduced. The overall color of the ground is consistent, but due to the coating on the elastic glue It is still rigid. When the concrete shrinks more severely, the floor coating (middle coat and topcoat) on the elastic glue may crack, but the cracks will not be large. 3. When constructing the floor, try to keep the expansion joints first, cover them immediately, and record the location. Then after the floor painting is completed, cut the expansion joints neatly and make sure the width is above 5mm. It is best to modify them. Make it into a trapezoid shape with a wide top and narrow bottom, then clean the dust and debris in the seam, stick tape on both sides of the seam, use polyurethane elastic glue to fill the gap until it is straight, and remove the tape when the elastic glue is half dry. The third method is often used in electronics factories and pharmaceutical factories that have high requirements for cleanliness and aesthetics. It can basically avoid the cracking of the floor coating at the expansion joints and make the floor more beautiful. Disadvantages of this method: Because the polyurethane elastic material has relatively few colors, it is difficult to achieve the same color as the overall floor coating. 4. Local expansion joints on the ground are often paved with fiberglass cloth to enhance crack resistance. The construction method is: first fill the expansion joints flat with epoxy clay pot slurry material, then apply primer material, and then paste it. Apply 1-2 layers of glass fiber cloth with a width of about 10mm, and then roll-coat the middle coating material, top coating, etc. This method can not only ensure that the overall color of the ground is consistent, but also resist cracking caused by concrete shrinkage. However, if the design thickness of the floor coating is too thin, it is difficult to operate, and the ground where the application is applied is prone to be higher than other places. Therefore, at least epoxy floors above 2MM will adopt this solution. Note: The parameters provided in this document are for reference only and are not mandatory. Due to differences in technical characteristics between different brands and models of laser levelers, please consult the manufacturer for a suitable solution before actual operation. This reference document assumes no responsibility for any issues arising from failure to follow the manufacturer's instructions.

Material selection: The correct choice of floor material can only be made after a detailed understanding of the requirements of the floor. We will detail the ground requirements below to avoid financial losses caused by mistakes or neglect. Design life: How long is the factory life, 2 years or 20 years? The final surface must be selected based on expected life or desired maintenance-free period. Construction: At what stage in the construction process will the ground system be deployed? Are the building's primary structures in place? Answering these questions will provide an idea of how the floor system will be constructed. There are two main construction methods: monolithic pouring or topping pouring. Overall pouring: This method uses a dry spreading process followed by surface troweling to form a monolithic concrete floor. These dry spread materials can only be used after the concrete floor has been poured and cannot be used on existing floors. Surface layer pouring: This method is used on existing floors by scraping or surfacing. This is a commonly used method to achieve the best bonding effect of the adhesive. The use of concrete-containing epoxy resin adhesives has better results and further increases the safety factor. Thickness: For the required floor coating, its thickness must be considered. Especially for existing buildings, increasing the thickness of the ground will cause threshold problems. In new construction projects, gaps should be reserved for the thickness of the coating. Structural load: The static and dynamic loads generated during building construction, renovation and maintenance must be considered. On the one hand, the ground system must be able to withstand these requirements, and on the other hand, the bearing capacity of the base layer should also be taken into consideration. Generally speaking, the minimum design value of the compressive strength of the base layer is 25Mpa. Traffic and mechanical wear and tear: Impact and wear and tear due to traffic must be considered. Wear is usually localized. The frequency, type and location of wear must be considered. Chemical spill: Make a list of all the types of chemicals that could leak in the area, noting the concentrations at which they leak, their temperatures, and their potential to mix on the ground. Consider what actions might be taken when leaks occur, whether these leaks are cleared immediately or remain for a considerable period of time, whether they become more corrosive as they evaporate, etc. Anti-skid: Is slip resistance an important consideration? The troweling process can be used to change the appearance of the floor as well as its slip resistance. However, in many situations, especially in wet sites, all workers are provided with anti-slip shoes to improve the anti-slip effect. Hygiene: Many modern industries, such as medicine, cosmetics, food, beverages, chemicals and electronics industries, have very high requirements on hygiene. These developing industries require clean indoor conditions. The floor must have no cracks or sharp corners, be completely dust-free, and easy to clean. They must also meet other industrial requirements, such as resistance to chemical corrosion, resistance to mechanical wear and other performance requirements. Anti-cracking ability: This is related to structural loads, especially dynamic loads. What impact will factory or traffic vibrations have on the ground? In some special areas of the building structure, such as the ground floor, the production area on the middle floor, etc. Temperature: Thermal shock may be the main cause of premature floor failure, so not only the temperatures generated by the product itself and the production process during mechanical operation need to be considered, but also the temperature of adjacent areas needs to be considered. Special attention should be paid to areas near sources of extreme cold or heat, such as cold storage or areas near blast furnaces. Beautiful colors: An attractive and pleasant environment can help increase productivity and improve industrial relations, although lighting can also play a role in this. Color can help quickly identify hazardous areas such as truck walkways, wet areas or chemicals. district. Easy to clean: For a floor system, if its cleaning agent is not considered in advance, especially for those companies with high hygiene requirements. In most cases, the corrosion of the floor caused by this cleaning agent is greater than the corrosion caused by the production process. Therefore, it is important to develop cleaning specifications that determine the frequency of cleaning and the cleaning agents to be used and their concentrations. Careful consideration should be given to using a floor varnish or sealant to facilitate cleaning and improve durability while maintaining the appearance of the floor. Drainage: When considering a floor drainage system, the final floor condition should also be considered. The combination of different building materials is particularly prone to cracks and leaks. Static electricity: Many companies are increasingly calling for anti-static floors. Anti-static floor protects sensitive electronic equipment from electronic interference and prevents spark discharges and explosions caused by static electricity accumulation. As the production speed continues to accelerate and the degree of automation continues to increase, the possibility of generating static electricity also increases, and anti-static requirements become even more important. Repair and maintenance: In any production plant, normal wear and tear of the floor is inevitable. This wear should be allowed for when selecting a flooring system. This is especially important when choosing a special color or finish, as future repairs may not be consistent with the original. Collision: Since collision causes damage to the ground, the degree and frequency of collision should be confirmed. Consider the drop height of the object. The final floor should be impact resistant. For areas that cannot meet this requirement, local protection measures should be considered, such as the use of steel plates.

Super-flat flooring is a roadway area where forklifts are permanently used on the ground. It is usually classified as "super-flat flooring". It uses a high-precision laser leveling machine to pave and level newly poured concrete and combine it with certain floor construction techniques. , a kind of floor that meets certain specific use requirements; super flat floor is the highest specification and highest standard advanced floor in the world. It is designed to improve the flatness and wear resistance of the ground and extend the service life of the ground. . So, what are the advantages of super flat floors compared to ordinary floors? Diyi Construction will introduce it to you from the following three aspects. 1. Different equipment and instruments In order to ensure the flatness of the ground, many factors need to be considered in the design of the super-flat floor process, including the working time of the instruments and equipment and the selection of construction tools. Laser leveling, infrared detection and ultrasonic leveling technologies are generally used in super-flat floor construction, while ordinary floor construction does not require so many equipment and instruments. 2. The flatness of the ground is different. Super-flat floors generally use laser leveling machines to replace traditional manual leveling of concrete. The ground elevation can reach laser-level accuracy. Lasers are used to control the levelness and flatness of the ground, so as to achieve true leveling. super flat floor. The flatness of ordinary concrete floors generally only reaches 5mm/2m, while the flatness of super-flat floors generally refers to the flatness of 3~4mm/2m or higher. It can be seen that the flatness requirements far exceed the general standards of our country's floors. 3. Different construction techniques. Super-flat floors abandon the traditional practice of constructing the concrete base and surface layers separately. They use a special laser leveling machine and polishing technology to process the concrete into a high-density, high-gloss floor. To a large extent, It reduces the problems of cracks and hollows caused by poor combination between the base layer and the surface layer, and also allows the forklift to run more smoothly. Relatively speaking, ordinary floors are relatively poor and can only meet general design requirements. They cannot meet conventional requirements for the maximum bearing capacity of the ground and the smooth operation of forklifts. In addition, ordinary floors are more likely to have cracks, hollows, sand and dust in the future. Because of the special technology of the super flat floor, the surface hardness and flatness of the floor are extremely high, which prolongs its use time. It is widely used in large warehousing centers, logistics centers, comprehensive distribution centers in the retail industry, ultra-narrow lane warehouses, and railway transportation reserves. Centers, cargo terminals, TV program studios, ice rinks, production workshops using precision instruments and equipment, etc. Industrial workshops that require special flatness on the ground, aerospace manufacturing centers, etc.

Do you know? Using a concrete laser leveler can save up to 60% of high-intensity labor, save 50% of construction costs, and shorten the construction period by 50%! The strength and compactness of the floor have increased by 25%, and the levelness and flatness have exceeded national standards. The completed "three-super" floor has reached the international first-class level. 1. Labor costs are halved and efficiency doubled! The traditional process requires multiple manual operations such as formwork support, dotting, and paving, which requires at least 20 manpower. With the use of a concrete laser leveler, the total number of people has been reduced by more than half, and it is still possible for one person to operate! The daily construction area can reach 2,500 square meters to 3,500 square meters, which is really labor-saving and efficient! 2. Laser point alignment, high precision and low error! Leveling is not easy with traditional techniques. You need to support templates to control the elevation of the ground and pull control lines. But the elevation error is a bit large, and the level and smoothness of the floor may not be guaranteed… However, it is completely different with a laser point transmitter! It is suitable for one-time paving of large areas. It has a laser measurement and control system to control the elevation in real time. No wires are required for leveling, and there is no need for side boards in the middle to control the ground elevation. In this way, the elevation error caused by the vibration of the formwork during the construction process is avoided, and the elevation error caused by traditional manual block formwork is also reduced! 3. The flatness and integrity are better! In the traditional construction process, the formwork is set up one day and the water is poured the other day. The construction can only be carried out piece by piece, which has some limitations. If this continues, continuous operation will not be possible, and the integrity will not necessarily be much better, and it will easily lead to accumulated errors in the construction joints! But that’s not the case with concrete laser levelings! It is a master at paving large areas of floor in one go! Not only can the paving efficiency be improved, but the integrity is also better! Compared with traditional construction, it is no match! 4. The ground is denser and more uniform! Do you know? The leveling machine has a high-frequency vibrator that operates 4,000 times per minute! It allows the leveling head vibrator to produce uniform high-frequency vibration, making the concrete floor denser and more uniform!

Wow, the laser leveler is really a great assistant for leveling large floors! In construction projects, concrete laser levelings really can handle a variety of challenges with ease. Telescopic arm laser leveling machine for large factory building construction Four-wheel laser leveling machine for large factory building construction Four-wheeled concrete laser leveling machine construction Telescopic arm concrete leveling Large telescopic arm laser leveling machine This magical device uses laser measurement technology and intelligent control system to give your concrete floor a new look, and get precise flatness easily! How does it work? To put it simply, the laser sensor emits a laser signal, then receives the signal reflected from the ground, compares it with the preset plane height, and automatically adjusts the height of the leveling knife through the intelligent control system to reach the preset plane height. Laser leveling machine steel mesh construction To sum up, the concrete laser leveling machine is really a practical construction engineering equipment, accurate, efficient and practical! However, when using it, we must also pay attention to some issues, such as environmental protection and energy saving. Therefore, when choosing a concrete laser leveling, we must comprehensively consider various factors to ensure construction quality and efficiency. In general, the concrete laser leveler is a good hand in construction projects, making our ground smoother and more beautiful!

When it comes to flooring, there are different types for different spaces. Indoor flooring and outdoor flooring differ in many ways, including their design, materials, functionality and style. Each space has its unique qualities and purposes, and these factors play a crucial role in determining the flooring type that best suits that space. ▶Appearance The first obvious difference between indoor and outdoor flooring options is their appearance. Residential indoor floors include tiles, hardwood, laminates, carpets and vinyl, and they are designed to match the interior décor of your home. On the other hand, outdoor flooring options aim to enhance your home’s exterior appeal. For instance, natural stones like limestone, granite, and sandstone are commonly used for outdoor flooring as they create a unique aesthetic that complements the outdoor environment’s natural elements. ▶Durability Outdoor floors are exposed to harsh natural elements, including moisture, heat, and heavy foot traffic, while indoor floors are primarily exposed to foot traffic and temperature changes. Therefore, outdoor flooring materials need to be more durable and long-lasting than indoor flooring. Materials such as ceramic tiles, natural stones, and concrete are commonly used for outdoor flooring due to their strength and resilience. Wood, on the other hand, can be used for outdoor floors but only if it is appropriately treated to prevent rotting, degradation and pests. ▶Maintenance Maintaining outdoor flooring requires much more effort and time than indoor flooring. Since outdoor flooring is exposed to natural elements, it tends to accumulate dirt, leaves, and debris that requires regular cleaning. Additionally, outdoor floors require regular sealing to prevent moisture and water damage. Indoor floors also need maintenance, but it is usually less intense, and they only require regular vacuuming and sweeping to keep them clean. ▶Installation The installation process for indoor and outdoor flooring also differs. Indoor floors, such as carpet, laminate, and engineered wood floors, require an underlayment that serves as a sound barrier and moisture barrier. Some outdoor flooring options, like natural stones, need to be installed on a sub-base foundation to ensure stability and prevent shifting. Additionally, outdoor floors need proper drainage systems to prevent water damage as excess water can cause structural damage and lead to slippery surfaces that can be hazardous to pedestrians. ▶Cost Indoor flooring is usually less expensive than outdoor flooring options. For example, hardwood floors cost between $8 to $15 per square foot, while outdoor stone flooring can cost around $20 to $40 per square foot, depending on the type and quality of the stones. It's worth noting that the installation costs for outdoor flooring materials would also be higher since they require much more preparatory work and labor than indoor flooring. ▶Functionality Indoor flooring serves mainly as a design element that enhances the aesthetics of the home. On the other hand, outdoor flooring serves a more practical purpose as it provides safety by preventing slips, falls, and injuries, especially if the surface gets wet. Safety considerations, such as slip-resistant features, are of utmost importance when choosing outdoor flooring materials. ▶Conclusion In summary, indoor and outdoor flooring options have several distinguishing factors, including appearance, durability, maintenance, installation cost and functionality. It is vital to consider all these factors when choosing flooring materials for your home. Aesthetics, durability, and functionality are essential considerations when selecting any flooring type but are more important when it comes to outdoors. Ultimately, choosing the right flooring helps to create an inviting and comfortable living space that suits your unique taste and needs.

Hardened floors and ordinary concrete floors are two types of flooring materials commonly used in modern-day construction. While they may look similar, these materials have significant differences that set them apart. In this article, we'll explore the key differences between hardened floors and ordinary concrete floors and why hardened floors are a better option for industrial and commercial facilities. What are hardened floors? Hardened floors are concrete floors that have undergone a specialized process to increase their hardness and durability. This is typically done by adding a surface hardener or a densifier to the concrete mix and then grinding and polishing the surface to a high gloss or matte finish. Hardened floors are available in a vast range of colors and designs, making them a popular flooring choice in commercial and industrial applications. Benefits of hardened floors Improved durability One of the most significant benefits of hardened floors is their improved durability compared to ordinary concrete floors. Hardened floors are much harder and denser than standard concrete flooring, making them resistant to wear and tear caused by heavy foot traffic, vehicle traffic, and machinery. They are also highly resistant to chemicals and staining, which makes them an excellent option for industrial and manufacturing facilities. Easy maintenance Another benefit of hardened floors is that they are incredibly easy to maintain. Unlike traditional concrete floors, hardened floors do not require regular waxing or coatings to keep them looking their best. Instead, they only require daily cleaning with a mild detergent and occasional polishing to maintain their shine. Versatility Hardened floors are available in a broad range of colors and finishes, making them highly versatile. They can be customized to match any design or aesthetic, making them suitable for a wide range of commercial and industrial applications. Additionally, they can be used indoors or outdoors and can withstand extreme weather conditions. Eco-friendliness Hardened floors are an eco-friendly flooring option because they utilize the existing concrete surface. By using the existing surface, there is less waste, fewer resources used, and less carbon emissions from transportation. Hardened floors also have low VOC emissions, making them ideal for eco-conscious facilities. What are ordinary concrete floors? Ordinary concrete floors are typically made up of cement, sand, and aggregates such as gravel and stone. They are poured onto a base layer of subgrade material and then left to cure over time. While traditional concrete floors are highly durable, they lack the strength and resilience of hardened floors. Disadvantages of ordinary concrete floors Susceptibility to damage Ordinary concrete floors are more susceptible to damage than hardened floors. They are prone to cracking and chipping over time, especially in high traffic areas. Additionally, they can be damaged by chemicals, such as oils and solvents and can become stained and discolored. Difficult to maintain Ordinary concrete floors require a lot of maintenance to keep them looking their best. They need to be regularly coated with a wax or sealer to protect them from damage and staining. Additionally, they require frequent cleaning with a specialized detergent and regular polishing to maintain their shine. Limited design options Traditional concrete floors offer limited design options, leaving little room for customization. They usually come in a standard gray color, and attempts to stain or color them can lead to uneven coloring. Conclusion In conclusion, while both hardened floors and ordinary concrete floors are popular flooring options, hardened floors offer significant benefits that make them a better choice for commercial and industrial facilities. With their improved durability, easy maintenance, versatility, and eco-friendliness, hardened floors are the way to go for businesses looking for a long-lasting, low-maintenance, and cost-effective flooring option.

Specification for flatness of concrete floors Ⅰ. Overview As a ground material widely used in modern buildings, compacted soil floor has the advantages of high strength, durability and easy maintenance. However, flatness is an important indicator of concrete floors, which directly affects the use function and appearance quality of the ground. Therefore, formulating specifications for ground flatness of compacted soil is of great significance to ensure project quality. Ⅱ. Flatness requirements 1. Ground flatness refers to the maximum distance the ground surface deviates from the datum plane in the horizontal direction. For general indoor concrete floors, the flatness should not be greater than 2mm/2m. For floors with special requirements, such as clean workshops, precision instrument rooms, etc., corresponding adjustments should be made according to the usage requirements. 2. The allowable deviation of flatness should take into account factors such as usage requirements, construction conditions, construction methods, etc. Generally speaking, there are the following regulations for the allowable deviation of flatness when inspected using a 3m ruler and feeler gauge: a) The 3m ruler shall not be larger than 3mm/2m; b) The independent column is not larger than 3mm/3m; c) The unevenness between two adjacent plates shall not be greater than 2mm; d) The total length shall not be greater than 10mm. Ⅲ. Detection method 1.3m ruler inspection method: Use a 3m ruler placed vertically on the ground, observe the maximum gap between the ruler and the ground, and use a feeler gauge to measure the minimum gap. 2. Level measurement method: Set level points on the ground, measure the elevation of each point with a level, and calculate the flatness of the ground. 3. Laser scanner measurement method: Use a laser scanner to scan the ground, obtain point cloud data, and calculate the flatness of the ground through software analysis IV. Acceptance criteria 1. Appearance requirements: The ground surface should be smooth, clean, without cracks, and uniform in color: anti-slip ramps should meet the design requirements. 2. Flatness requirements: Determine the corresponding acceptance standards based on actual conditions such as usage requirements, construction conditions, and construction methods. It is generally required that the flatness of the ground should not be greater than 2mm/2m, the independent columns should not be greater than 3mm/3m, the unevenness between two adjacent boards should not be greater than 2mm, and the total length should not be greater than 10mm. 3. Safety requirements: Anti-slip ramps should be installed on the ground, and their anti-skid performance should meet the design requirements. At the same time, for floors with waterproofing requirements, waterproofing treatment should be carried out and the next process can be carried out only after passing the inspection. 4. Functional requirements: The ground should have sufficient bearing capacity to meet the usage requirements. For example, for the concrete floors in workshops, the vibration and impact effects of vehicles when driving should be considered; for public buildings such as offices and libraries, noise interference should be avoided. 5. Durability requirements: The ground should have good durability and be able to maintain its performance and appearance quality for a long time. Durability requirements include wear resistance, corrosion resistance and aging resistance. 6. Economic requirements: On the premise of meeting the use requirements and construction quality, the project cost should be reduced as much as possible. Selecting appropriate construction materials and construction techniques, improving construction efficiency and quality stability, and reducing maintenance costs are key measures to achieve economic requirements. 7. Maintainability requirements: The ground requires regular maintenance and upkeep during use to ensure its performance and appearance quality. Maintainability requirements include ease of cleaning, ease of repair and ease of replacement. 8. Environmental protection requirements: Corresponding environmental protection measures should be taken during the construction process, such as reducing noise pollution, controlling dust, rational use of waste, etc.; at the same time, environmentally friendly materials and processes should be selected, such as energy-saving lighting, green building materials, etc. Note: The parameters provided in this document are for reference only and are not mandatory. Due to differences in technical characteristics between different brands and models of laser levelers, please consult the manufacturer for a suitable solution before actual operation. This reference document assumes no responsibility for any issues arising from failure to follow the manufacturer's instructions.

Acceptance standards for quality concrete in building floor projects 1. General principles 1.1 Purpose This standard clarifies the specifications and standards for quality concrete acceptance of building ground projects to ensure that the project quality meets the design requirements and is safe to use. 1.2 Scope of application This standard applies to the acceptance of concrete materials in building ground projects, including requirements for raw materials, construction technology, quality inspection and acceptance, and safe and civilized construction. 2. Material acceptance standards 2.1 Cement When using cement, cement with product quality certificate and on-site inspection report should be selected, and on-site acceptance should be carried out in accordance with regulations. After the cement enters the site, it should be stored separately according to different varieties, labels, and factory dates, and signs should be set up. It is strictly prohibited to use expired, damp, or agglomerated cement. 2.2 Sand and stone Sand and stone should meet the design requirements, be free of impurities such as silt and stone powder, and have particle size and gradation that meet specification requirements. For projects with special requirements, special sand and stone should be used. 2.3 Water When using tap water or well water, make sure the water is clean and free of impurities such as oil, acid, and alkali. The chloride ion content in water should not exceed specification requirements. 2.4 Admixtures Admixtures should meet the design requirements, have product quality certificates and on-site inspection reports, and undergo on-site acceptance in accordance with regulations. The type and dosage of admixtures should comply with the design and specification requirements and should not contain ingredients harmful to the human body. 3. Construction process acceptance standards 3.1 Template installation Design calculations should be carried out before the formwork is installed, and the formwork should be made and installed in accordance with the design requirements. The strength and stiffness of the formwork should meet the construction requirements, and the joints should be tight, smooth, and free of slurry leakage. The formwork support system should be firm and stable and must not tilt or shake. After the formwork is removed, the surface should be kept clean and free of residue. 3.2 Steel bar binding Rust removal treatment should be carried out before the steel bars are bound. The specifications, models, quantities and spacing of the steel bars should meet the design requirements. The steel bars should be tied firmly and not loose. The joints of the steel bars should comply with the specification requirements, and the welding quality should comply with the design and specification requirements. The thickness of the protective layer of steel bars should meet the design requirements. When cement mortar pads are used, the number of pads should not be less than 4/m2. 3.3 Concrete pouring Before pouring the compacted soil, the formwork, steel bars, etc. should be inspected to ensure that they meet the construction requirements. The slump of concrete should comply with the design and specification requirements, and no water or additives should be added to the mixer at will. When pouring the compacted soil, it should be carried out in layers. The thickness of each layer should not be too large, and it should be vibrated densely without vibration leakage. After the concrete pouring is completed, the surface should be polished and compacted in time to prevent cracks. 3.4 Maintenance After the concrete pouring is completed, curing should be carried out in time, and the curing time should not be less than 7 days. During the curing period, the concrete surface should be kept moist to prevent shrinkage cracks. When using cover watering for curing, the frequency of watering should be enough to keep the concrete in a moist state. When using plastic film for curing, the plastic film should remain completely sealed and water-tight. After the curing is completed, the formwork should be removed promptly and the finished product should be protected in accordance with regulations. 4. Quality inspection and acceptance standards 4.1 Essentials The quality of building ground engineering should comply with the design requirements and relevant specifications, and the surface should be smooth, smooth, and free of cracks, pitting and other defects. The dividing joints should be neat and straight, and there should be no staggered joints. There should be no leakage at the junction between the floor and the wall. Ground engineering with functional requirements should meet the requirements of relevant functional functions.

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.

Concrete troweling machines are used in various industries such as construction, industrial, and residential projects to provide a smooth and polished surface on the concrete. These machines are designed to provide a smooth and even finish to the surface, which helps to create a uniform and professional-looking surface that is perfect for any application. Concrete troweling machines are used for a variety of concrete-related jobs such as leveling, smoothing, polishing, and finishing the surface of concrete. These machines are also known as power trowels and are used to provide a smooth and even finish on the surface of the concrete. They can be used on both horizontal and vertical surfaces of concrete structures. The construction industry is the primary area where concrete troweling machines are used. In the construction industry, these machines are used for a variety of tasks such as smoothing and leveling the surface of concrete during the construction of buildings, bridges, roads, sidewalks, and other infrastructure projects. The use of a concrete troweling machine can help to speed up the construction process, reduce labor costs, and produce a high-quality finish that is durable and long-lasting. Industrial applications also utilize concrete troweling machines. In industrial settings, these machines are used to polish and finish the surfaces of manufacturing floors, warehouses, and other industrial facilities. The smooth surface that is created with a concrete troweling machine is ideal for industrial applications as it is easy to clean and maintain. The creation of a level surface also helps to improve the functionality and safety of an industrial workspace. In residential applications, concrete troweling machines are used for a variety of jobs such as the creation of garage floors, patios, and walkways. The use of a concrete troweling machine can help to create a smooth and even surface on these residential spaces, which adds value to the property and improves the overall aesthetic appeal of the space. Additionally, using a concrete troweling machine can help to reduce the amount of time it takes to complete the job, which can save labor costs. The use of a concrete troweling machine is not limited to the construction, industrial, and residential industries. These machines are used in many other industries such as agriculture, aviation, and sports and recreation. In the agriculture industry, concrete troweling machines are used to provide a level surface for large animal shelters, feedlots, and other animal housing areas. In aviation, these machines are used to smooth and level out runways, taxiways, and other paved areas. In sports and recreation, concrete troweling machines are used to create smooth and even surfaces for basketball courts, tennis courts, and other sporting areas. In conclusion, concrete troweling machines are used for a variety of tasks in various industries such as construction, industrial, and residential projects. These machines provide a smooth and polished surface on the concrete, which is ideal for any application. The use of a concrete troweling machine can be beneficial in reducing labor costs, increasing productivity, and producing a high-quality finish that is durable and long-lasting. The versatility of the concrete troweling machine makes it an essential tool in many industries, and it will continue to be used for many years to come.

Yes, it is possible to make a hardened floor even if the ground is uneven. A hardened floor is a concrete slab or leveling that is reinforced with steel bars or fibres to offer immense mechanical strength. The flooring is used in construction projects that require a highly durable floor surface that can withstand heavy traffic, extreme weather conditions, and long-term wear and tear. When building a hardened floor on an uneven ground, the first step is to level the surface using appropriate machinery such as a bulldozer, a bobcat, or a compact excavator. Once the ground has been levelled, a sub-base layer made of gravel or crushed stone is added to provide a stable foundation for the concrete slab. This sub-base layer is compacted to ensure evenness and to prevent any future settling or shifting of the concrete slab. The next step is to place a vapor barrier or damp proof membrane on top of the sub-base layer. This is important in preventing moisture penetration from the ground, which can cause problems such as mould growth, weakening of the concrete, and reduced durability of the hardened floor. After the damp-proof membrane has been installed, a layer of insulation is added to absorb any unevenness and provide thermal insulation, especially in colder environments. The insulation layer also helps to prevent the buildup of moisture and humidity within the concrete slab, which can cause damage over time. Once all the preparatory steps have been taken, steel reinforcement bars or fibres are installed to reinforce the concrete slab. This is important as it provides added strength and durability to the flooring. The thickness of the steel reinforcement bars or fibres depends on the load capacity requirements of the hardened floor. Finally, the concrete mix is prepared according to the required specifications and poured onto the leveled and prepared ground with the steel bars or fibers in place. The concrete is then smoothed and left to cure for several days before any heavy traffic is allowed on it. In conclusion, it is possible to make a hardened floor on an uneven ground. With appropriate preparation and installation of the necessary layers and reinforcement, a hardened floor can be constructed to provide a stable and durable floor surface. The quality of the hardened floor also depends largely on the skills and experience of the contractors or builders involved in the construction process. Therefore, proper research and careful selection of contractors is key to ensuring a successful flooring project that meets your requirements and expectations.