Concrete Reinforcing Steel Bar from 8mm to 40mm
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 300 m.t.
- Supply Capability:
- 1500 m.t./month
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Concrete Reinforcing Steel Bar from 8mm to 40mm
Main Structure of Concrete Reinforcing Steel Bar
Standard: AISI, ASTM, BS, DIN, GB
Grade: HRB400
Diameter: 6mm-10mm
Length: 1.6-1.9ton/coil
Application: for construction
rebar coil size: 6mm-10mm
steel grade: hrb400 , hrb500, gr.60 , hrb335,q235 q255 q275
Description for Concrete Reinforcing Steel Bar
Type | Coiled reinforced bar/rebar coil |
Steel Grade | hrb500, gr.60 ,q235 ,q255,q275 |
Size | 6mm-10mm |
Unit weight | 1.6-1.9tons/coil |
Application | Building/project construction |
Packing | In coil with steel strip ,in bulk . |
Datas for Concrete Reinforcing Steel Bar
HRB400 | Chemical Composition(%) | C | Mn | Si | P | S |
0.25max | 1.60max | 0.80max | 0.045max | 0.045max | ||
Mechanical Property | Yield Strength | Tensile Strenth | Elongation | |||
400Mpa min | 540Mpa min | 16% | ||||
HRB500 | Chemical Composition(%)
| C | Mn | Si | P | S |
0.25max | 1.60max | 0.80max | 0.045max | 0.045max | ||
Mechanical Property | Yield Strength | Tensile Strength | Elongation | |||
500Mpa min | 630Mpa min | 15% | ||||
HRB335 | Chemical Composition (%) | C | Mn | Si | P | S |
0.25max | 1.60max | 0.80max | 0.045max | 0.040max | ||
Mechanical Property | Yield Strength | Tensile strength | Elongation | |||
335Mpa min | 455Mpa min | 17% | ||||
FAQ
Q: Why should you choose us:
A: 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.
12px; font-style: inherit; font-variant: inherit; font-weight: 400; line-height: inherit; float: none; word-wrap: break-word; color: rgb(0, 0, 0); border: 1px solid rgb(204, 204, 204);"> Elongation 335Mpa min 455Mpa min 17%
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- Q:What are the guidelines for proper splicing of steel rebars in concrete structures?
- The guidelines for proper splicing of steel rebars in concrete structures are essential to ensure the structural integrity and safety of the building. Here are some key guidelines to follow: 1. Length of Lap Splicing: The length of lap splicing refers to the overlapping distance between two rebars. It is crucial to follow the specified length mentioned in the design plans or structural codes. Typically, the minimum lap length for rebars is specified as a certain multiple of their diameter, such as 40 times the diameter for tension members and 25 times the diameter for compression members. 2. Cleanliness: Before splicing the rebars, the surfaces of the bars must be cleaned thoroughly to remove any rust, scale, dirt, or other contaminants. Proper cleaning ensures a strong bond between the bars during the splicing process. 3. Proper Alignment: The rebars being spliced should be properly aligned to maintain the continuity of the reinforcement. Misalignment can lead to stress concentration, weakening the overall structure. The bars should be aligned in a straight line, ensuring that they are parallel and evenly spaced. 4. Splice Type: There are various types of splice connections available, such as lap splicing, mechanical splicing, and welded splicing. The choice of splice type should be based on the specific project requirements, structural design, and local building codes. 5. Reinforcement Bar Preparation: The rebars need to be prepared before splicing by removing any scale, rust, or other contaminants. This can be done through brushing, grinding, or shot blasting. Additionally, the ends of the rebars should be clean and free of any deformations or irregularities. 6. Testing and Inspection: It is crucial to conduct regular testing and inspection to ensure the quality and integrity of the spliced rebars. Non-destructive testing methods, such as ultrasound or magnetic particle testing, can be employed to check the bond strength and ensure the splicing has been done correctly. 7. Adequate Cover: The spliced rebars must have adequate concrete cover to protect them from corrosion and fire. The thickness of concrete cover should comply with the local building codes and design specifications. 8. Proper Grouting: If mechanical splices are used, it is important to ensure proper grouting or filling of the splice sleeve or coupler with an approved non-shrink grout. This helps in achieving full load transfer and prevents any movement or slippage of the rebars. 9. Documentation: All splicing activities should be properly documented, including the type of splice used, lap lengths, inspection reports, and any deviations from the original design. This documentation is important for future reference, maintenance, and to ensure compliance with regulatory agencies. It is important to note that these guidelines are general recommendations, and specific project requirements and local building codes should always be followed for proper splicing of steel rebars in concrete structures. Consulting with a qualified structural engineer or following the advice of a reputable construction professional is crucial to ensure the highest standards of safety and compliance.
- Q:What are the different shapes and forms of steel rebars available?
- In construction projects, various shapes and forms of steel rebars are available, each tailored for specific applications and requirements. 1. The most commonly used steel rebars are plain round bars, which have a circular cross-section. They find wide-ranging applications, including general construction, reinforcement in concrete slabs, and foundation works. 2. Deformed bars, on the other hand, have surface protrusions or deformations to enhance adhesion with concrete. These deformations increase the bond strength between the rebar and the concrete, making them suitable for applications demanding high tensile strength, such as columns, beams, and retaining walls. 3. Square rebars, as their name suggests, have a square cross-section. They are commonly employed in applications requiring a strong bond with concrete, such as precast concrete elements, footings, and walls. 4. Rectangular rebars possess a rectangular cross-section and are frequently utilized in applications necessitating higher tensile strength, such as bridges, tunnels, and heavy structural elements. 5. Welded wire fabric (WWF) is a prefabricated reinforcement material comprising a grid-like pattern formed by welding longitudinal and transverse wires together. It is commonly used in slabs, walls, and pavements to ensure uniform reinforcement distribution. 6. Dowel bars are specifically employed to transfer loads between adjoining concrete elements, such as connecting slabs or pavements. Smooth round bars are typically used and inserted into drilled holes with epoxy adhesive to enhance load transfer. 7. T-shaped rebars have a T-like cross-section, featuring a stem and a flange. They find common applications where additional reinforcement is required at specific locations, such as joints, corners, and connections. To ensure optimal reinforcement and structural integrity, it is crucial to consider the specific requirements of the construction project and consult with structural engineers or professionals to determine the appropriate shape and form of steel rebars.
- Q:What are the different types of steel rebars available?
- There are several different types of steel rebars available, each with its own unique properties and applications. Some of the most common types include: 1. Mild Steel Rebars: These are the most commonly used type of rebars and are known for their high strength and durability. They are typically used in general construction projects and can withstand heavy loads. 2. High-Strength Deformed (HSD) Rebars: These rebars are made from carbon steel and are heat-treated to enhance their strength and elasticity. They have enhanced resistance to corrosion and are commonly used in high-rise buildings, bridges, and other structures that require extra strength. 3. European Rebars: These rebars are manufactured according to European standards and are typically made from mild steel. They have a ribbed surface to provide better adherence to concrete and are used in various construction applications. 4. Carbon Steel Rebars: These rebars are made from carbon steel and have a high carbon content. They have excellent strength and are widely used in structures that require exceptional durability, such as bridges and highways. 5. Epoxy-Coated Rebars: These rebars are coated with an epoxy layer to prevent corrosion and enhance their longevity. They are commonly used in marine structures and areas with high humidity or salt exposure. 6. Galvanized Rebars: These rebars are coated with a layer of zinc to provide protection against corrosion. They are commonly used in areas with high moisture content or in coastal regions. 7. Stainless Steel Rebars: These rebars are made from stainless steel and are highly resistant to corrosion. They are used in specialized applications, such as in areas with chemical exposure or in structures that require exceptional durability. It is important to choose the appropriate type of steel rebar based on the specific requirements of the construction project, including load-bearing capacity, corrosion resistance, and environmental conditions. Consulting with a structural engineer or construction professional can help determine the best type of rebar to use for a particular project.
- Q:How do steel rebars prevent concrete structures from collapsing?
- Steel rebars prevent concrete structures from collapsing by providing reinforcement and strength to the concrete. The rebars act as a framework within the concrete, helping distribute loads and resist tension forces. This added strength prevents cracks from forming and spreading, ensuring the structural integrity of the concrete and preventing collapse.
- Q:Can steel rebars be used in railway construction?
- Yes, steel rebars can be used in railway construction. Steel rebars are commonly used in reinforced concrete structures, including railway infrastructure such as bridges, tunnels, and platforms. They provide strength, durability, and support to the railway infrastructure, ensuring its stability and longevity.
- Q:What is the maximum length of steel rebars available in the market?
- The maximum length of steel rebars available in the market varies, but commonly ranges from 40 to 60 feet.
- Q:Can steel rebars be used in the construction of road bridges or flyovers?
- Yes, steel rebars can be used in the construction of road bridges or flyovers. Steel rebars are commonly used as reinforcement in concrete structures, including bridges and flyovers, due to their high strength and durability. The rebars help to enhance the structural integrity and load-bearing capacity of the concrete, making it suitable for supporting heavy traffic loads and resisting the forces experienced by road bridges and flyovers. Additionally, steel rebars provide increased resistance to corrosion, which is crucial in bridge constructions where exposure to environmental elements is significant. Overall, the use of steel rebars in the construction of road bridges and flyovers ensures their structural stability, longevity, and safety.
- Q:What is the role of steel rebars in minimizing cracking due to shrinkage?
- The role of steel rebars in minimizing cracking due to shrinkage is to provide reinforcement and strength to concrete structures. By placing steel rebars within the concrete, they act as a framework that helps distribute the tensile forces caused by shrinkage. This prevents the concrete from cracking and ensures the overall stability and durability of the structure.
- Q:How do steel rebars contribute to the overall ductility of a structure?
- Steel rebars contribute to the overall ductility of a structure by providing reinforcement and enhancing its ability to withstand deformations and absorb energy without failure. The addition of rebars in concrete structures improves its tensile strength, as concrete alone is weak in tension. This combination allows the structure to flex and bend under loading, reducing the risk of brittle failure and increasing its overall resilience.
- Q:What is the effect of steel rebars on the electrical conductivity of concrete?
- Steel rebars have a significant effect on the electrical conductivity of concrete. As steel is a highly conductive material, the presence of steel rebars in concrete increases its overall electrical conductivity. This is due to the fact that steel rebars create a network of conductive paths throughout the concrete matrix, allowing for the easy flow of electrical current. The electrical conductivity of concrete is an important factor to consider, especially in applications where electrical grounding or conductivity is necessary. Steel rebars aid in providing a low-resistance pathway for electrical current, improving the overall electrical conductivity of the concrete structure. However, it is essential to note that the presence of steel rebars can also introduce potential challenges in certain scenarios. For instance, in electrical installations where insulation is required or in areas where electrical isolation is necessary, the conductivity provided by steel rebars may not be desired. In such cases, additional measures like insulation or isolation techniques need to be employed to prevent unwanted electrical currents from flowing through the concrete. Overall, the effect of steel rebars on the electrical conductivity of concrete is dependent on the specific requirements and applications of the concrete structure. Understanding the intended use and implementing appropriate measures accordingly will ensure that the electrical conductivity of the concrete meets the desired specifications.
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Concrete Reinforcing Steel Bar from 8mm to 40mm
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 300 m.t.
- Supply Capability:
- 1500 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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