What do you think we should do about this awesome construction problem?
Thread Content
★★New steel structure factory building (66* 24 = 1584 square meters). During the floor construction, due to the unscientific construction methods of the construction team, the floor in the factory building after construction was uneven. The overall flatness error was within 2cm, which did not meet the standard requirement of the 5mm error range. The floor construction uses P6C25 commercial concrete! The construction team is now using a grinder to smooth the floor to remedy the problem, but the effect is not good. Due to the large amount of construction and the high strength of the floor, several grinding discs have been worn out, and the progress is slow and the ideal effect cannot be achieved. In the factory building, there is a 6m * A large depression of 6m, with a maximum depth of 1cm in the center, looks very obvious after water accumulation... Please help: 1. What are the remedies? (See question 5) 2. Are there any better grinding tools than grinders in China, or are there other special tools in the construction industry? 3. What are the side effects of polished floors? 4. 6m * Can the 6m recess be filled in? Is it necessary to add glue or anything else? Or is there a better remedy? 5. There are 56 pre-embedded ant platforms inside the floor of the factory building. The half of the ant platforms buried in the floor as required is exposed to the floor. It is already about 1cm higher than the floor according to the standard. Therefore, the method of overall raising the floor cannot be used to remedy the problem. Of course, the function of the ant platform is to level it, so if you have to use the method of overall raising the floor to remedy it, then you must ensure that the raised floor is absolutely flat (plus or minus 1mm), and the ant platform will be completely buried. So is there such a high-standard construction team in our country? (Foreigners seem to be able to make floors with an error of plus or minus 1mm), or is there a more scientific construction method that can control the flatness of the floor? Question supplement: 1. What is epoxy floor? 2. Is epoxy floor suitable for steel structure factory floor? 3. So, how strong is the epoxy floor? This post was last edited by Lai Lai on 2009-3-19 21:50 ]
The only solution is to dig it up and redo it. Grinding is not the answer. It treats the symptoms but not the root cause! After polishing, there will still be bumps after a while. The most important thing is that during construction, the underground cushion was not done well and the foundation was not compacted! Let the construction unit redo it, otherwise the acceptance will not pass, and the construction unit will bear full responsibility.
★★Epoxy floor is a high-strength, wear-resistant and beautiful floor. It has the advantages of seamless, solid texture, good chemical resistance, anti-corrosion, waterproof, dust-proof, easy maintenance, and low maintenance cost. Various solutions can be designed according to different application requirements, such as 0.5mm thick thin layer coating, 1-5mm thick self-leveling floor, anti-slip and wear-resistant coating, mortar type coating, anti-static, anti-corrosion coating, etc. ★★Epoxy flooring was originally used for functional floors: Such as anti-corrosion, wear-resistant, anti-skid, and developed into general-purpose ordinary industrial floors. In addition to functional requirements, they also have decorative effects. On the basis of the wide application of industrial flooring, with the continuous improvement of people's living standards, it has been widely used in home decoration. Epoxy flooring has become one of the fastest growing industries in my country and has attracted everyone's attention. It can achieve factory production like cement products, and the prospects are even more promising! ★★If the ground is severely sandy, the ground will first be polished with a diamond dust-free grinder. Until the ground is glazed. Then use high-power epoxy mortar to scrape the ground and repair potholes. This can ensure the bonding force of the ground and prevent it from breaking. This post was last edited by Lai Lai on 2009-3-19 21:54 ]
Let’s do it again. Which construction company is this? blacklisted
Let’s start over. If something goes wrong in the future, it’s a very troublesome engineering problem. Don’t be careless.
If there is a contract, you can act in accordance with the contract and find the responsible person according to the agreement. If it is not possible, you can initiate legal proceedings to safeguard your legitimate rights and interests.~~~
1. This is a typical quality accident: Quality accidents are divided into general accidents and major accidents according to their severity. General accidents refer to economic losses ranging from 5,000 yuan to 100,000 yuan. Any event that meets one of the following conditions is called a major accident: (1) Collapse of main structures of buildings and structures ； (2) The foundation sinks unevenly beyond the prescribed level, the building tilts, the structure cracks, or the main structure strength is seriously insufficient. ； (3) Any quality accident, as determined by technical supervision, affects the strength, stiffness and stability of main components, thereby affecting structural safety and building life, causing irreparable permanent defects. ； (4) Causes loss of main components of important equipment, seriously affecting the functionality of the equipment and its corresponding systems ； (5) The economic loss is more than 10,000 yuan. Your company should take immediate measures in accordance with the contract to require the responsible person to make unconditional rectifications and bear the losses caused. By the way, what does a supervisor do? The construction unit cannot be entirely blamed. They're going to be on the sidelines! The process must be controlled! 2. According to the information you provided, it should not be very serious. It is very common for the floor elevation to exceed the standard requirements. Don't be surprised. Is there any time left for civil construction and safety inspection? If you still have time, find a level surface on the floor! Try to reduce the workload of dismantling as much as possible. You are using P6C25 concrete. It is useless to use a polisher. Don’t waste time. Directly use a pneumatic pick to shovel the ash cake that is higher than the floor (the ant platform you mentioned), and then clean up the base layer, making sure to wash it thoroughly! Find some C25 grouting material for leveling. After the strength is increased, use 107 glue and cement to make cement putty. Hang a layer on the ground. After it dries, mop it repeatedly with a mop. The effect is very good. As for the 6X6 submerged floor you mentioned, it can only be smashed. The longer it takes, the higher the strength of the concrete and the more difficult the construction will be! After demolition, it was poured with P6C25 concrete. If you are going to make an epoxy floor, then there is no need for cement putty, just dismantle the entire floor! It won't make sense to add another layer of concrete. 3. According to what you said, the construction unit did not reach the original elevation at all? The gray cake is still too high. The requirements you mentioned tell you that regular construction units will strictly follow the design drawings and * * Under standardized construction, this situation will generally not occur. Unless... ;P
This problem is quite serious and must be completely renovated. Some of our workshops failed to do it once and will have to redo it a third time.
I personally think: 1. There is no other way to do it again. ； 2. I have been in contact with the construction unit that is constructing the airport runway. It belongs to the army. The flatness error of their construction is within 5mm. ； 3. Can the floor be imaged as a wall and be filled up using the "scraping putty" method? The deep areas should be filled in several times. As for the putty material, I think I would need to add an adhesive and create roughness on the original surface. For the sake of beauty, whether to apply a layer of paint that meets your requirements after touch-up. Please correct me!