Deformed Steel Bar Iron Rods For Construction/Concrete
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 1000 m.t./month
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Quality Product, Order Online Tracking, Timely Delivery
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deformed steel bar grade 40
material: HRB400, BS4449 GR460B
size: 8-36mmx12m.
short delivery time by bulk or container
deformed steel bar grade 40
material: HRB400, BS4449 GR460B
size: 8-36mmx12m.
short delivery time with bulk or container
packing: Mill standard export packing in bundles/coil, around 2tons/bundle.
country of Origin: China
delivery Time: Within a 35 days
Shipment: by bulk vessel or by container
Leading goods:
section steel:angles,channels,I-beam,H-beam;
coils:cold/hot rolled coils,PPGI,galvanized coils,plate,checkered plate,cutting steel plate,steel strip;
wire rod:steel wire,deformed wire,bar;
pipe:seamless pipe,rectangular pipe,welded pipe,spiral welded pipe,pipe fittings;
stainless steel:steel sheets,stainless steel strips,stainless bar,stainless tube;
special:weathering steel,shipbuilding steel;
construction steel:C-channel,Z-channel,T-bar,high-speed divider plate,corrugated steel plate,steel grating.
Advantage:
We are the spot supplier, Six huge warehouses which can hold 20,000 MT goods.It makes the cost lower than others,we can provide the competitive price for you.
Delivery time:
Normal sizes can be provided in 7days, the others should be ready in 30---45 days.
Further treatment:
We can offer cutting,painting,drilling holes,bending,threading, welding,galvanization,packing etc.
Security interest:
We have already passed the ISO9001, BV and SGS authentication which makes the quality secured.
If you have the interest in any of the products we can provided,
pls don't hesitate to connect with me. Looking forward to cooperate with you.
FAQ of Steel Deformed Bar
1. More than 10 years experience in this industry
2. 100,000 tons exporting per month
3. Professional foreign trade tea
4. OEM&ODM capacity
5. High quality assured & competitive price
6. Try our best to meet your needs & save your budget
7. Very popular in Southeast Asia, Africa, Mid-East and South America etc.
8. VIP membership system, first time customers and long-term cooperation customers can get extra discount on some products.
- Q: How long do steel rebars typically last in construction?
- Steel rebars typically last for the entire lifespan of a construction project, which could range from several decades to even over a century, depending on the specific conditions and maintenance of the structure.
- Q: How do steel rebars affect the thermal properties of a structure?
- Steel rebars, which are commonly used in reinforced concrete structures, can have a significant impact on the thermal properties of a building or structure. Firstly, steel has a higher thermal conductivity compared to concrete. This means that when steel rebars are embedded within concrete, they can act as thermal bridges, allowing heat to transfer more easily through the structure. This can result in increased heat loss during colder months and increased heat gain during warmer months, leading to higher energy consumption for heating and cooling. Secondly, steel rebars can affect the thermal expansion and contraction of the structure. Steel has a higher coefficient of thermal expansion compared to concrete, meaning it expands and contracts more with changes in temperature. This differential movement between the steel rebars and the surrounding concrete can lead to cracks and structural deformations, which can compromise the overall thermal performance of the structure. Furthermore, steel rebars can also influence the moisture behavior of a structure. Steel has a higher thermal conductivity than concrete, as mentioned earlier, but it also has a higher electrical conductivity. This electrical conductivity can promote the corrosion of steel rebars when they come into contact with moisture or water. Corrosion can lead to the formation of rust, which expands and can further damage the surrounding concrete. This can result in increased moisture ingress, compromising the insulation properties of the structure and potentially leading to mold growth and other moisture-related issues. In conclusion, steel rebars have both direct and indirect impacts on the thermal properties of a structure. They can act as thermal bridges, affecting heat transfer, and their differential thermal expansion and corrosion potential can compromise the overall thermal performance and moisture behavior of the structure. Proper design, insulation, and corrosion protection measures should be taken into consideration to mitigate these effects and ensure optimal thermal performance.
- Q: How do steel rebars affect the overall stability of concrete structures?
- The overall stability of concrete structures is greatly enhanced by steel rebars. When steel rebars are added to concrete, its tensile strength is significantly increased, as concrete naturally lacks this property. Although concrete is effective in resisting compressive forces, it is weak when it comes to resisting tensile forces. By incorporating steel rebars into the concrete, the structure becomes more durable and less prone to cracking and deformation. The rebars function as reinforcement by absorbing the tensile stresses caused by external loads or internal forces. When these forces are applied, the concrete transfers the tensile stress to the rebars, which allows them to bear the load. This prevents the concrete from cracking and failing under tension, as the rebars strengthen the structure and distribute the forces more evenly. Furthermore, steel rebars provide stability and maintain the structural integrity of concrete structures in the event of earthquakes or other natural disasters. The rebars assist in resisting the lateral forces generated during seismic events, thereby preventing the structure from collapsing or sustaining significant damage. This is especially crucial in tall buildings or structures subjected to heavy loads, as the presence of rebars ensures the overall stability and safety of the structure. Additionally, steel rebars contribute to the durability and longevity of concrete structures. By inhibiting cracking and reducing the risk of corrosion, the rebars safeguard the concrete from environmental factors such as moisture, chemicals, and temperature fluctuations. This preservation of the structure's integrity over time diminishes the need for frequent repairs or replacements. In conclusion, steel rebars play a vital role in enhancing the overall stability of concrete structures. They provide the necessary tensile strength that concrete lacks, enabling it to withstand external loads and internal forces without cracking or failing. The inclusion of rebars also guarantees structural integrity during seismic events and enhances the durability of the concrete. Ultimately, steel rebars are indispensable components in the construction of strong, secure, and long-lasting concrete structures.
- Q: Can steel rebars be used in structures with high resistance to creep?
- Yes, steel rebars can be used in structures with high resistance to creep. Steel rebars are known for their high strength and durability, making them suitable for various construction applications, including structures that are designed to withstand creep.
- Q: What are the guidelines for preventing steel rebars from rusting during construction delays?
- In order to prevent steel rebars from rusting during construction delays, it is crucial to adhere to the following guidelines: 1. Adequate Storage: Rebars should be stored in a covered and dry area, away from moisture and direct sunlight. It is important to ensure that the storage area is well-ventilated to avoid condensation. 2. Use of VCI (Volatile Corrosion Inhibitor) Products: Incorporate VCI products such as VCI paper, films, or emitters. These products release chemicals that inhibit corrosion and create a protective layer on the rebars, preventing rust formation. 3. Proper Packaging: If rebars need to be transported or stored for a long period, it is essential to package them correctly. Wrap the rebars tightly with VCI paper or plastic sheets and secure the packaging with tape to prevent moisture from seeping in. 4. Dehumidification: Install dehumidifiers in areas where the rebars are stored to reduce humidity levels. This will help maintain a dry environment and prevent condensation on the rebars. 5. Regular Inspection: Conduct periodic inspections to check for any signs of rust formation on the rebars. If rust is detected, it should be promptly cleaned and treated with anti-corrosion coatings to prevent further damage. 6. Application of Protective Coatings: Apply anti-corrosion coatings on the rebars to provide an additional layer of protection. The choice of coating, whether epoxy-based or zinc-based, should depend on the environmental conditions and project requirements. 7. Eliminate Standing Water: Make sure there is no standing water in the vicinity of the rebars, as it can expedite the rusting process. Implement proper drainage systems to prevent water accumulation. 8. Monitoring: Regularly monitor the environmental conditions, including temperature and humidity levels, to identify any potential risks of rust formation. Adjust the storage conditions accordingly, if necessary. By adhering to these guidelines, construction delays can be effectively managed, and the steel rebars can be safeguarded from rust formation, ensuring the structural integrity of the project.
- Q: How are steel rebars tested for quality and strength?
- Quality and strength of steel rebars are assessed through a series of standardized tests, ensuring adherence to required standards and ability to withstand anticipated loads and stresses. A primary test is the Tensile Test, which measures the maximum stress a rebar can endure before breaking. A sample rebar is pulled until it fractures, and the force needed to cause this fracture is measured. This test offers valuable data about the rebar's ultimate tensile strength, yield strength, and elongation. Another critical examination is the Bend Test, which evaluates the rebar's ductility and ability to resist breaking when bent. A sample rebar is bent to a specific angle, and any cracks or fractures are closely inspected. If there are no indications of failure, the rebar is considered acceptable. Furthermore, Chemical Analysis is performed to determine the rebar's chemical composition. This test ensures compliance with required chemical composition standards, as variations can impact the rebar's strength and durability. The Dimensional Test is conducted to verify that the rebar meets the specified standards in terms of dimensions, weight, and shape. Deviations from the required measurements can compromise the rebar's structural integrity. Additionally, the rebar's Surface Condition is visually evaluated to identify signs of rust, cracks, or other defects that could affect its performance. Proper surface condition is crucial for ensuring effective bonding with the surrounding concrete. Lastly, certain rebars undergo Non-Destructive Testing, such as ultrasonic testing or magnetic particle inspection, to identify hidden defects or cracks that may not be visible to the naked eye. In conclusion, these testing methods guarantee that steel rebars possess the necessary quality and strength for use in construction projects, providing essential reinforcement for reinforced concrete structures.
- Q: How do steel rebars contribute to the overall fire safety of a structure?
- Steel rebars contribute to the overall fire safety of a structure by providing reinforcement and strength to the concrete elements. In the event of a fire, the steel rebars help to maintain the structural integrity of the building, preventing collapse and ensuring a safe evacuation. Additionally, steel has a high melting point, which means it can withstand high temperatures for longer periods compared to other materials, further delaying the spread of fire and allowing more time for firefighting efforts.
- Q: Can steel rebars be replaced with other reinforcement materials?
- Yes, it is possible to replace steel rebars with other materials for reinforcement. Steel rebars have been widely used in construction due to their strength and durability, but there have been advancements in alternative materials that offer comparable or even enhanced properties. One such alternative is the use of fiber-reinforced polymer (FRP) bars. These bars are composed of high-strength fibers embedded in a polymer matrix. FRP bars possess qualities such as lightweightness, corrosion-resistance, and high tensile strength, making them an appealing substitute for steel rebars. Additionally, they are non-conductive and non-magnetic, which makes them suitable for applications in areas with electromagnetic interference or in industries that require sensitivity to electronics. Another alternative is carbon fiber reinforced polymer (CFRP) bars, which are similar to FRP bars but are specifically reinforced with carbon fibers. CFRP bars offer even greater tensile strength and stiffness compared to steel rebars, making them particularly well-suited for structures that necessitate exceptional load-bearing capabilities. Moreover, natural fiber reinforced composites (NFRC) have been explored as an alternative to steel rebars. NFRC can be created using materials such as bamboo, jute, or sisal fibers embedded in a matrix material like cement or polymer. These natural fibers provide good tensile strength and can be a sustainable and cost-effective substitute for steel rebars, especially in regions where these fibers are readily available. In conclusion, although steel rebars have traditionally been the go-to choice for reinforcement materials in construction, alternatives such as FRP bars, CFRP bars, and NFRC can serve as viable replacements. The selection of reinforcement material depends on various factors including structural requirements, environmental conditions, and cost-effectiveness.
- Q: What is the role of steel rebars in minimizing the risk of progressive collapse?
- Steel rebars play a crucial role in minimizing the risk of progressive collapse in structures. Progressive collapse refers to the failure of a building or structure due to the localized failure of a primary structural element, which then leads to the failure of adjacent elements and a collapse of the entire structure. The primary function of steel rebars in this context is to enhance the structural integrity and provide strength to critical load-bearing elements, such as columns, beams, and slabs. By reinforcing these elements with steel rebars, the structure becomes more resistant to sudden and catastrophic failures. Steel rebars are typically embedded within the concrete, forming a composite structure known as reinforced concrete. The rebars act as tensile reinforcements, counteracting the concrete's weakness in tension. When subjected to loads, the rebars bear the tension forces while the concrete resists compression forces. This combination allows for a more balanced load distribution and prevents localized failures. In the event of an unexpected failure or an extreme event, such as an explosion or impact, steel rebars play a critical role in preventing progressive collapse. They provide additional ductility and redundancy to the structure, ensuring that even if one element fails, the load can be redistributed to surrounding elements, preventing a domino effect of failure. Moreover, steel rebars contribute to the overall stability of a structure by increasing its load-carrying capacity. By reinforcing structural elements, they allow for increased spans and higher design loads, reducing the risk of overloading and potential failure. Regular inspections and maintenance of steel rebars are essential to ensure their effectiveness in minimizing the risk of progressive collapse. These inspections involve checking for corrosion, proper placement, and adequate cover of the rebars to protect them from environmental factors that may compromise their integrity. In conclusion, steel rebars play a vital role in minimizing the risk of progressive collapse by reinforcing critical load-bearing elements, enhancing structural integrity, and providing redundancy. They enable structures to withstand unexpected failures and extreme events, ensuring the safety and stability of buildings and infrastructure.
- Q: Can steel rebars be used in structures with high aesthetic requirements?
- Yes, steel rebars can be used in structures with high aesthetic requirements. While steel rebars are primarily used for their strength and durability, they can also be designed and incorporated in a way that meets aesthetic requirements. Rebars can be shaped, bent, or painted to match the desired aesthetic of the structure. Additionally, they can be hidden within the structure or covered by other materials to maintain a clean and visually appealing appearance. With careful planning and design, steel rebars can be successfully used in structures with high aesthetic requirements without compromising their functionality or visual appeal.
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Deformed Steel Bar Iron Rods For Construction/Concrete
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 1000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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