Basic Mild Steel Deformed Bar

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

Min Order Qty:: -

Supply Capability:: -

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Usage and Applications of HRB400 Deformed Steel Bar:

Deformed bar is widely used in buildings, bridges, roads and other engineering construction. Big to highways, railways, bridges, culverts, tunnels, public facilities such as flood control, dam, small to housing construction, beam, column, wall and the foundation of the plate, deformed bar is an integral structure material. With the development of world economy and the vigorous development of infrastructure construction, real estate, the demand for deformed bar will be larger and larger..

Packaging & Delivery of HRB400 Deformed Steel Bar:

Packaging Detail: products are packed in bundle and then shipped by container or bulk vessel, deformed bar is usually naked strapping delivery, when storing, please pay attention to moisture proof. The performance of rust will produce adverse effect.

Each bundle weight: 2-3MT, or as required

Payment term: TT or L/C

Delivery Detail: within 45 days after received advanced payment or LC.

Label: to be specified by customer, generally, each bundle has 1-2 labels

Trade terms: FOB, CFR, CIF

Cold Rolled Techniques

Yield Point: 545-565mpa

Q: What are the guidelines for proper curing of concrete structures with steel rebars?: Proper curing of concrete structures with steel rebars is essential to ensure their strength, durability, and longevity. Here are some guidelines to follow for the proper curing of such structures: 1. Moisture Control: During the curing process, it is crucial to maintain a moist environment around the concrete structure. This can be achieved by covering the surface of the concrete with a plastic sheet or using a curing compound. This helps to prevent the evaporation of water from the concrete, which can lead to shrinkage, cracking, and reduced strength. 2. Duration of Curing: The duration of curing depends on various factors such as the type of concrete mix, environmental conditions, and the size and complexity of the structure. Generally, curing should continue for a minimum of 7 days to allow the concrete to gain sufficient strength. However, for structures with steel rebars, it is recommended to extend the curing period to 14-28 days to ensure proper hydration and bonding between the concrete and steel. 3. Temperature Control: Temperature plays a vital role in the curing process. It is important to avoid extreme temperature fluctuations during curing, as they can negatively impact the strength and durability of the concrete. If the temperature is too high, it may cause rapid drying and shrinkage, leading to cracks. On the other hand, freezing temperatures can impede proper hydration. Therefore, maintaining a moderate and consistent temperature is crucial for effective curing. 4. Protection from External Factors: During the curing period, the concrete structure should be protected from external factors that can harm its integrity. This includes preventing the structure from being exposed to direct sunlight, rain, strong winds, or any other adverse weather conditions. Additionally, it is essential to protect the concrete from any potential damage caused by construction activities or heavy loads during the curing process. 5. Regular Inspection and Maintenance: Regular inspection of the concrete structure during the curing process is necessary to identify any potential issues such as cracks, honeycombing, or inadequate curing. Any such issues should be addressed promptly to prevent further damage. Additionally, once the curing process is complete, it is important to implement a proper maintenance plan to ensure the long-term durability and structural integrity of the concrete structure. By following these guidelines, proper curing of concrete structures with steel rebars can be achieved, resulting in strong, durable, and reliable construction.

Q: How are steel rebars used in parking structures?: Steel rebars are used in parking structures to reinforce the concrete and provide structural strength. They are typically embedded within the concrete to ensure that the structure can withstand heavy loads and resist any potential cracks or damages. The rebars help distribute the weight evenly, enhancing the overall stability and durability of the parking structure.

Q: Do steel rebars affect the weight of a structure?: Yes, steel rebars do affect the weight of a structure. Rebars, also known as reinforcing bars, are steel bars used to reinforce concrete structures. When concrete is poured, rebars are embedded within it to provide additional strength and support. Since steel is much denser than concrete, the addition of rebars increases the overall weight of the structure. However, the weight increase is relatively small compared to the benefits gained in terms of structural integrity and load-bearing capacity. Rebars help distribute the load more evenly throughout the structure, making it more resistant to bending, cracking, and collapsing under heavy loads. Therefore, while rebars do add some weight to a structure, the advantages they bring in terms of safety and longevity far outweigh the slight increase in weight.

Q: What are the main properties of steel rebars?: Steel rebars, also known as reinforcing bars, are essential components in reinforced concrete structures. They possess several key properties that make them ideal for providing strength and durability to these structures. 1. Strength: One of the primary properties of steel rebars is their high tensile strength. They can withstand significant pulling forces and provide the necessary reinforcement to resist cracking and structural failure in concrete. 2. Ductility: Steel rebars exhibit excellent ductility, meaning they can deform without fracturing under stress. This property allows them to absorb energy during seismic events or other extreme loads, enhancing the overall structural performance and resilience of the reinforced concrete. 3. Corrosion resistance: Steel rebars are typically manufactured with a protective layer, such as epoxy or galvanized coating, to prevent corrosion. This property is crucial as exposure to moisture, chloride ions, and other corrosive elements can significantly weaken the rebars and compromise the integrity of the structure. 4. Weldability: Steel rebars can be easily welded together, allowing for efficient and effective construction. This property ensures that rebars can be connected to form a continuous and robust reinforcement network, enhancing the overall strength and stability of the concrete structure. 5. Thermal compatibility: Steel rebars have similar thermal expansion and contraction properties to concrete, minimizing the risk of cracking or structural damage due to temperature changes. This compatibility ensures the long-term durability and stability of reinforced concrete structures. 6. Availability and cost-effectiveness: Steel rebars are widely available and relatively cost-effective compared to other reinforcing materials. This affordability, combined with their excellent mechanical properties, makes them a popular choice for structural reinforcement across various construction projects. In conclusion, the main properties of steel rebars include high tensile strength, ductility, corrosion resistance, weldability, thermal compatibility, and cost-effectiveness. These properties make steel rebars indispensable for providing structural strength and durability to reinforced concrete structures.

Q: Can steel rebars be used in offshore oil rig construction?: Indeed, offshore oil rig construction can make use of steel rebars. These rebars are widely employed in the construction field, including the creation of offshore structures like oil rigs. By reinforcing concrete structures, steel rebars guarantee the solidity and robustness of the overall construction. In the context of offshore oil rig construction, it is customary to embed steel rebars within concrete foundations, columns, and other structural components to bolster their resistance against external forces such as wind, waves, and seismic activity. Through the incorporation of steel rebars, the durability and safety of offshore oil rigs are effectively ensured, rendering them fitting for the challenging conditions encountered in offshore environments.

Q: What is the role of steel rebars in beam and column design?: The role of steel rebars in beam and column design is to provide reinforcement and enhance the structural strength and stability of the concrete elements. Rebars are embedded within the concrete to resist tensile forces and prevent cracking or failure under heavy loads. By increasing the overall durability and load-bearing capacity, steel rebars ensure the structural integrity and longevity of beams and columns.

Q: What are the common types of coatings applied to steel rebars for corrosion protection?: The common types of coatings applied to steel rebars for corrosion protection include epoxy, zinc, and polyethylene.

Q: Are steel rebars susceptible to magnetic fields?: Steel rebars can be affected by magnetic fields. They are made from a ferromagnetic material, which means they can be magnetized and are attracted to magnets. This is because iron is present in the composition of steel. When steel is exposed to a magnetic field, its atoms align with the field, resulting in magnetization. However, it is worth mentioning that a strong magnetic field is usually needed to magnetize steel rebars, requiring a powerful magnet. In regular circumstances, the magnetic fields encountered are not powerful enough to considerably impact the behavior or properties of steel rebars.

Q: Can steel rebars be used in retaining walls and dams?: Yes, steel rebars can be used in retaining walls and dams. Steel rebars are commonly used in construction projects to reinforce concrete structures, including retaining walls and dams. The rebars provide added strength and stability to the structures, helping them withstand the pressure and forces exerted on them.

Q: Can steel rebars be used in structures with limited construction permits?: Structures with limited construction permits often permit the use of steel rebars, given their widespread application in construction for their robustness and endurance. Nevertheless, it is crucial to refer to the construction permits for detailed regulations and constraints. These permits may impose limitations on the materials employed, encompassing rebar dimensions and composition. To ensure conformity with the construction permits and ascertain the permissibility of steel rebars in a specific structure, it is advisable to seek guidance from a structural engineer or the local building authority.

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