Cold Rolled Steel Rebars with High Quality 6mm-50mm
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 15000 m.t./month
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Quality Product, Order Online Tracking, Timely Delivery
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Specifications of Cold Rolled Steel Rebars with High Quality 6mm-50mm:
Name | Cold Rolled Steel Rebar | |
Diameter | 6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm, 22mm,25mm,28mm,32mm,36mm,40mm,50mm | |
Length | 6M, 9M,12M or as required | |
Price | Keep lower operating costs so as to offer competitive price for our clients | |
Label | to be specified by customer, generally, each bundle has 1-2 labels | |
Application | Building, construction | |
Invoicing | Actual or Theoretical Weight Basis as buyer’s request. | |
Theoretical weight and section area of each diameter of Cold Rolled Steel Rebars with High Quality 6mm-50mm as below for your information :
Diameter(mm) | Section area (mm²) | Mass(kg/m) | Weight of 12m (kg) | Pcs/ton |
6 | 28.27 | 0.222 | 2.664 | 375.38 |
8 | 50.27 | 0.395 | 4.74 | 210.97 |
10 | 78.54 | 0.617 | 7.404 | 135.06 |
12 | 113.1 | 0.888 | 10.656 | 93.84 |
14 | 153.9 | 1.21 | 14.52 | 68.87 |
16 | 201.1 | 1.58 | 18.96 | 52.74 |
18 | 254.5 | 2.00 | 24 | 41.67 |
20 | 314.2 | 2.47 | 29.64 | 33.74 |
22 | 380.1 | 2.98 | 35.76 | 27.96 |
25 | 490.9 | 3.85 | 46.2 | 21.65 |
28 | 615.8 | 4.83 | 57.96 | 17.25 |
32 | 804.2 | 6.31 | 75.72 | 13.21 |
36 | 1018 | 7.99 | 98.88 | 10.43 |
40 | 1257 | 9.87 | 118.44 | 8.44 |
50 | 1964 | 15.42 | 185.04 | 5.40 |
Packaging & Delivery of Cold Rolled Steel Rebars with High Quality 6mm-50mm:
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 terms: TT payment in advance or Irrevocable LC at sight.
Trade terms :FOB, CFR, CIF
Delivery Detail: within 45 days after received advanced payment or LC.
FAQ:
Q1: Why buy Materials & Equipment from OKorder.com?
A1: All products offered byOKorder.com are carefully selected from China's most reliable manufacturing enterprises. Through its ISO certifications, OKorder.com adheres to the highest standards and a commitment to supply chain safety and customer satisfaction.
Q2: How do we guarantee the quality of our products?
A2: We have established an advanced quality management system which conducts strict quality tests at every step, from raw materials to the final product. At the same time, we provide extensive follow-up service assurances as required.
Q3: How soon can we receive the product after purchase?
A3: Within three days of placing an order, we will arrange production. The shipping date is dependent upon the quatity, how many sizes you want and the plan of production, but is typically 1 month to 2 month days from the beginning of production.
Images of Cold Rolled Steel Rebars with High Quality 6mm-50mm:
- Q: How do steel rebars affect the overall crack control of concrete?
- The incorporation of steel rebars into concrete structures is crucial for crack control. Steel rebars significantly improve the otherwise low tensile strength of concrete. Tensile forces, such as drying shrinkage, temperature changes, or applied loads, tend to cause cracks in concrete. However, the presence of steel rebars helps mitigate and control these cracks. Rebars reinforce the concrete and provide additional strength. They resist tensile forces and prevent easy cracking of the concrete. When reinforced concrete is subjected to tensile forces, the rebars bear a significant portion of the load, reducing the stress on the concrete and minimizing crack formation. The bond between the steel rebars and the concrete is essential for crack control. This bond ensures effective transfer of tensile forces to the concrete, enhancing its overall crack resistance. Additionally, the bond helps distribute applied loads evenly, reducing the risk of localized cracking. Steel rebars also have the ability to control crack widths in concrete. By specifying the appropriate diameter, spacing, and arrangement of the rebars, engineers can influence crack widths to meet design requirements. The rebars act as barriers, limiting the width of cracks and maintaining the structural integrity of the concrete. In conclusion, steel rebars have a positive impact on crack control in concrete. They enhance the tensile strength, resist tensile forces, distribute loads, and limit crack widths. Incorporating steel rebars in concrete ensures durability and longevity of structures by effectively controlling crack formation and minimizing their negative consequences.
- Q: What are the common defects or issues associated with steel rebars?
- Common defects or issues associated with steel rebars include: 1. Rust: Steel rebars are prone to rusting when exposed to moisture or corrosive substances. Rust weakens the rebars, reducing their load-bearing capacity and compromising the structural integrity of the reinforced concrete. 2. Poor bonding with concrete: If the rebars are not properly cleaned or have a layer of rust, they may not bond well with the concrete. This can result in reduced strength and durability of the reinforced concrete structure. 3. Improper size or shape: Rebars that are incorrectly sized or shaped can lead to structural issues. For example, rebars that are too short or have inadequate coverage may not provide sufficient reinforcement, making the structure vulnerable to cracking or collapse. 4. Improper placement: Incorrect placement of rebars can lead to weak points in the reinforced concrete. This can occur if rebars are not adequately spaced, not aligned properly, or if there are gaps between the rebar and the concrete. 5. Improper storage and handling: Rebars should be stored in a dry and well-ventilated area to prevent rust. Improper storage or handling can result in surface damage, bending, or twisting of the rebars, affecting their performance in the reinforced concrete. 6. Welding defects: Welded rebars may have defects such as improper fusion, cracks, or lack of penetration, which can compromise the strength and integrity of the reinforcement. 7. Overlapping issues: Overlapping rebars is a common practice to ensure continuity in reinforcement. However, improper overlapping, such as insufficient overlap length or inadequate lapping of rebars, can result in weak joints and reduced structural strength. 8. Quality control issues: Inadequate quality control during the manufacturing or installation process can lead to defects or issues in rebars. This can include issues like improper chemical composition, inadequate strength, or deviations from the specified standards. It is crucial to address and rectify these defects or issues during the design, manufacturing, and construction stages to ensure the safe and reliable performance of reinforced concrete structures. Regular inspection, maintenance, and adherence to industry standards and guidelines are essential to mitigate these common issues associated with steel rebars.
- Q: What are the guidelines for spacing steel rebars in reinforced concrete?
- The guidelines for spacing steel rebars in reinforced concrete vary depending on several factors, such as the structural design requirements, load-bearing capacity, and the size and shape of the concrete elements. However, some general guidelines can be followed to ensure proper spacing and reinforcement in reinforced concrete structures. 1. The spacing between rebars: The spacing between steel rebars in reinforced concrete should typically be between three and six times the diameter of the bars. For example, if the diameter of the rebar is 12mm, the spacing should be between 36mm and 72mm. This spacing ensures adequate concrete cover and allows the concrete to flow freely around the reinforcement, providing optimal strength and durability. 2. Minimum spacing requirements: There are minimum spacing requirements to prevent the rebars from being too close to each other, which can lead to inadequate concrete cover and hinder the proper flow of concrete during construction. The minimum spacing between parallel bars is generally specified to be about 25mm or more. 3. Maximum spacing requirements: On the other hand, there are also maximum spacing requirements to ensure sufficient reinforcement and prevent excessive cracking or failure of the concrete structure. The maximum spacing is typically specified to be around 300mm, but it may vary depending on the specific design requirements and the size of the concrete element being reinforced. 4. Spacing around corners and bends: Special considerations should be given to the spacing of rebars around corners and bends in reinforced concrete elements. The spacing should be reduced in these areas to provide adequate reinforcement and prevent cracks or weak points. Generally, the spacing around corners and bends should be less than the recommended spacing for straight sections. 5. Spacing in heavily loaded areas: In areas subjected to heavy loads or high-stress concentrations, such as columns, beams, or foundations, closer spacing of rebars is required to provide sufficient reinforcement. The spacing in these areas is typically reduced to ensure the structural integrity and prevent failure. It is important to note that these guidelines are general recommendations, and specific projects may have their own unique requirements based on the structural design and local building codes. Therefore, it is crucial to consult with a structural engineer or follow the specifications provided by the project's design professionals to ensure proper spacing of steel rebars in reinforced concrete structures.
- Q: What are the factors that determine the strength of steel rebars?
- The factors that determine the strength of steel rebars include the chemical composition of the steel, the process of manufacturing and heat treatment, and the diameter and shape of the rebar. Additionally, factors such as the presence of impurities, the level of carbon content, and the microstructure of the steel also play a role in determining its strength.
- Q: How are steel rebars protected against alkali attacks?
- Various techniques and materials are used to protect steel rebars from alkali attacks. One commonly employed method involves the application of a protective coating onto the surface of the rebars. This coating acts as a barrier, preventing direct contact between the steel and the alkaline environment. Epoxy, zinc, and polyethylene are frequently utilized coatings that are designed to provide long-lasting protection against alkali attacks. Another approach to safeguarding rebars is the use of corrosion inhibitors. These inhibitors are added to the concrete mixture during construction and work by reducing the corrosive effects of alkali on the rebars. By forming a protective film on the steel surface, corrosion inhibitors prevent alkali from reaching the rebar and causing damage. In addition to coatings and corrosion inhibitors, the proper design of the concrete mix is also essential in protecting rebars from alkali attacks. By optimizing the composition of the concrete mix, engineers can decrease the alkalinity of the surrounding environment, thereby minimizing the risk of alkali attacks and subsequent corrosion. To ensure the continued protection of steel rebars against alkali attacks, regular maintenance and inspection of structures are crucial. It is essential to monitor the condition of the rebars and promptly address any signs of corrosion or damage, as this is vital to their long-term durability. In summary, the combination of protective coatings, corrosion inhibitors, proper concrete mix design, and regular maintenance are key factors in safeguarding steel rebars against alkali attacks. By implementing these measures, the lifespan and structural integrity of concrete structures can be significantly extended.
- Q: How do steel rebars affect the overall structural integrity of a building?
- Steel rebars play a crucial role in enhancing the overall structural integrity of a building. By reinforcing and strengthening concrete structures, rebars effectively distribute loads and resist tension, preventing cracks and structural failures. This reinforcement enables buildings to withstand various forces, such as earthquakes and high winds, ensuring their stability and durability over time.
- Q: Can steel rebars be used in retaining walls?
- Retaining walls can indeed utilize steel rebars. These rebars, also referred to as reinforcing bars, are frequently employed in retaining walls to enhance their strength and reinforcement. Typically, the rebars are embedded in the concrete or masonry structure of the retaining wall, thereby bolstering its structural integrity and fortifying it against forces like soil pressure. By incorporating steel rebars, retaining walls become resistant to cracking, shifting, or collapsing, providing a trustworthy and long-lasting solution for soil retention and erosion prevention.
- Q: Can steel rebars be used in sound barrier walls?
- Yes, steel rebars can be used in sound barrier walls. Steel rebars are commonly used in the construction of reinforced concrete structures, including sound barrier walls. These rebars provide strength and durability to the walls, ensuring they can withstand the forces exerted on them by wind, weather, and impacts. Additionally, steel rebars help to enhance the structural integrity of the sound barrier walls, making them more resistant to vibrations and noise transmission. Therefore, steel rebars are a suitable and commonly used material in the construction of sound barrier walls.
- Q: Can steel rebars be used in bridges?
- Yes, steel rebars can be used in bridges. Steel rebars are commonly used as reinforcement in concrete structures, including bridges. They provide added strength and stability to the concrete, making it able to withstand heavy loads and forces. The use of steel rebars in bridges helps to enhance their durability and structural integrity, ensuring the safety of the bridge and the people using it. Additionally, steel rebars have excellent tensile strength, which is necessary to counteract the tensile forces that bridges often experience. Overall, steel rebars are an essential component in the construction of bridges, contributing to their strength, longevity, and safety.
- Q: What are the guidelines for handling and disposing of steel rebars after demolition?
- The guidelines for handling and disposing of steel rebars after demolition typically involve several steps. Firstly, the rebars should be carefully removed from the demolished structure using appropriate tools and equipment to ensure worker safety. Once removed, the rebars should be inspected for any damages or contaminants that may affect their reuse or recycling potential. If the rebars are in good condition, they can be cleaned and stored for future use in construction projects. However, if they are damaged or cannot be reused, they should be properly recycled. This involves sorting them based on their grade and size before sending them to a recycling facility. If recycling is not possible, the rebars should be disposed of in a designated landfill or waste management facility following local regulations and guidelines to minimize environmental impact. It is crucial to follow these guidelines to promote sustainable practices and reduce waste in the construction industry.
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Cold Rolled Steel Rebars with High Quality 6mm-50mm
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 15000 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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