HIGH QUALITY DIN HOT ROLLED STEEL REINFORCEMENT BAR
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 100000 m.t./month
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Product Description:
Specifications of Hot Rolled Steel Rebar:
The production process of Steel Rebar
1-Waling beam furnace 2-Roughing rolling group 3-Intermediate rolling train
4-Finishing rolling group 5-Water-cooling device 6-Walking beam cooler
7-Finishing equipment(including the cold scale shear,short feet collection system,
automatic counting device,bundling machine, collect bench)
Usage and Applications of Hot Rolled Steel Rebar:
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 Hot Rolled Steel Rebar:
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
Label:to be specified by customer, generally, each bundle has 1-2 labels
Note:
1. Our products are produced according to national standard (GB), if not, supply according to national standards (GB) or agreement as customer required.
2. Other Grade and Standard Deformed Steel Bar we can supply:
Grade: GR40/GR60, G460B/B500A/B500B/B500C,BST500S
Standard: ASTM, BS, DIN
The Minimum Order Quantity of these products is high, and need to be confirmed.
3. We can not only supply Deformed Steel Bar; if you need anything about building materials, please contact us for further information.
4. Please send us your detail specifications when inquire. We will reply to you as soon as possible. We sincerely hope we can establish a long stable business relationship.
- Q:Can steel rebars be cut on-site during construction?
- Yes, steel rebars can be cut on-site during construction. This process, known as rebar cutting, is commonly done to achieve the desired length or shape of the rebars to meet specific project requirements.
- Q:How do steel rebars affect the thermal conductivity of a structure?
- The thermal conductivity of a structure can be greatly affected by steel rebars. Unlike other construction materials like concrete, steel has a much higher thermal conductivity. When steel rebars are embedded in concrete structures, they create an easier path for heat to flow through the structure. This increased thermal conductivity can have both positive and negative impacts. On the positive side, the presence of steel rebars allows for efficient heat transfer, which can be advantageous in certain applications. For instance, in buildings with heating or cooling systems, the steel rebars can help distribute the desired temperature more evenly throughout the structure. Nevertheless, the increased thermal conductivity can also lead to negative consequences. In buildings where thermal insulation is vital, such as those in extreme climates, the steel rebars can result in higher heat loss or gain. As a result, this can lead to increased energy consumption and higher costs for heating or cooling. To address these negative effects, various insulation techniques can be utilized to reduce heat transfer through the steel rebars. One common approach is to add insulation layers around the rebars or use materials with lower thermal conductivity in the concrete mixture. These measures can help minimize the impact of steel rebars on the overall thermal conductivity of the structure. In conclusion, steel rebars have a significant influence on the thermal conductivity of a structure. While they can enhance heat distribution in certain cases, they can also contribute to increased energy consumption and heat loss. Proper insulation techniques should be implemented to minimize these negative effects and optimize the thermal performance of the structure.
- Q:What are the common challenges faced during the installation of steel rebars?
- Some common challenges faced during the installation of steel rebars include ensuring proper placement and alignment, dealing with the weight and size of the rebars, avoiding damage to the rebars during handling and transportation, ensuring adequate anchorage and spacing, and coordinating with other construction activities to avoid conflicts.
- Q:What are the different types of surface finishes available for steel rebars?
- Some of the different types of surface finishes available for steel rebars include black or plain, epoxy-coated, galvanized, and stainless steel.
- Q:How are steel rebars anchored into existing concrete?
- Steel rebars are typically anchored into existing concrete by using different methods such as epoxy adhesive, mechanical anchoring systems, or by simply embedding the rebars into the fresh concrete during construction.
- Q:How are steel rebars used in the construction of power transmission towers?
- Steel rebars are commonly used in the construction of power transmission towers to reinforce the concrete foundations and provide structural stability. They are placed within the concrete to enhance its tensile strength and resistance to bending, ensuring the tower's ability to withstand the weight of the structure and the forces exerted by wind and load.
- Q:What are the different methods for reinforcing concrete with steel rebars?
- There are several methods for reinforcing concrete with steel rebars, each serving a specific purpose and providing different levels of strength and durability. 1. Traditional Reinforcement: This method involves placing steel rebars horizontally and vertically within the concrete structure. The rebars are typically arranged in a grid pattern and tied together at intersections using wire or metal ties. This method is commonly used for general reinforcement in slabs, walls, and columns. 2. Pre-stressed Reinforcement: In this method, steel rebars are pre-tensioned before they are embedded in the concrete. This is done by stretching the rebars using hydraulic jacks and anchoring them to the structure's foundation. The tension in the rebars helps counteract the tensile forces that occur when the concrete is subjected to loads, resulting in increased strength and resistance to cracking. 3. Post-tensioned Reinforcement: Similar to pre-stressed reinforcement, post-tensioning involves the use of steel rebars that are tensioned after the concrete has hardened. This is achieved by placing ducts or sleeves within the concrete before pouring, and then threading the rebars through them. Once the concrete has cured, the rebars are tensioned using hydraulic jacks, applying a compressive force that enhances the overall strength and load-bearing capacity of the structure. 4. Fiber Reinforced Concrete: Instead of traditional steel rebars, fibers made of steel, glass, synthetic materials, or natural fibers can be added to the concrete mix. These fibers act as a secondary reinforcement system, providing additional strength and durability to the concrete. Fiber reinforced concrete is commonly used in applications such as industrial floors, bridge decks, and pavements. 5. Shotcrete Reinforcement: Shotcrete is a method where a wet mix of concrete and steel fibers is sprayed onto a surface using a high-pressure hose. This technique is commonly used in slope stabilization, tunnel linings, and underground constructions. The steel fibers in the shotcrete provide reinforcement and improve the overall structural integrity of the sprayed concrete. Overall, the choice of reinforcement method depends on the specific requirements of the project, including the type of structure, expected loads, and desired durability. By selecting the appropriate method, engineers can ensure that the reinforced concrete structure possesses the necessary strength and resilience to withstand the intended usage and environmental conditions.
- Q:What are the different types of steel rebars used in column reinforcement?
- Column reinforcement commonly utilizes various types of steel rebars. These types consist of: 1. Mild Steel Rebars: Also referred to as carbon steel rebars, these are extensively utilized in construction. They possess low carbon content and are easily accessible and cost-effective. Mild steel rebars are suitable for most general construction projects. 2. High-Strength Deformed (HSD) Steel Rebars: HSD rebars contain higher carbon content and undergo heat treatment to enhance their strength. They exhibit greater yield strength and tensile strength compared to mild steel rebars. HSD rebars find common application in high-rise buildings and structures requiring increased strength. 3. Epoxy-Coated Rebars: These rebars are coated with an epoxy layer to shield them from corrosion. The epoxy coating acts as a barrier between the steel and the surrounding environment, preventing contact with moisture and other corrosive elements. Epoxy-coated rebars are frequently employed in coastal areas or environments with elevated humidity levels. 4. Stainless Steel Rebars: These rebars are fabricated from stainless steel, which includes chromium and other alloying elements that offer exceptional corrosion resistance. Stainless steel rebars are suitable for structures exposed to aggressive environments such as chemical plants, wastewater treatment facilities, and marine structures. 5. Galvanized Rebars: Galvanized rebars are coated with a layer of zinc to safeguard them against rust and corrosion. The zinc coating functions as a sacrificial layer, safeguarding the underlying steel from contact with corrosive elements. Galvanized rebars are commonly used in corrosive environments where moisture and chemicals are present. To select the appropriate type of steel rebar for column reinforcement, it is crucial to consider the project's specific requirements, including the desired level of corrosion resistance, structural strength, and environmental conditions.
- Q:What are the common quality tests performed on steel rebars?
- There are several common quality tests that are performed on steel rebars to ensure their strength and durability. These tests are essential to ensure that the rebars meet the required standards and can withstand the intended load and environmental conditions. One of the most common quality tests performed on steel rebars is the tensile test. This test measures the maximum amount of tensile stress that a rebar can withstand before it breaks. It helps determine the tensile strength and ductility of the steel rebars. Another important quality test is the bend test. In this test, a rebar is bent at a specified angle without breaking. The bend test evaluates the flexibility and resistance to cracking or fracturing of the rebars. It is particularly crucial for rebars used in construction projects where bending or shaping is required. The rebars are also subjected to a test called the chemical composition analysis. This test determines the percentage of various elements present in the steel rebars, such as carbon, manganese, phosphorus, sulfur, and others. The chemical composition analysis ensures that the rebars meet the specified requirements and do not contain any impurities that could compromise their strength or corrosion resistance. Corrosion resistance is another important property of steel rebars, especially in environments with high moisture or chemical exposure. To assess this, rebars undergo a corrosion test. This test involves subjecting the rebars to a corrosive environment, such as salt spray or acidic solutions, and evaluating their resistance to corrosion. This helps determine the rebars' suitability for specific applications and helps prevent premature degradation. Lastly, dimensional tests are performed to ensure that the rebars meet the required dimensions and tolerances. These tests include measuring the length, diameter, and weight of the rebars. Deviations from the specified dimensions can affect the rebars' structural integrity and compatibility with other construction materials. In conclusion, the common quality tests performed on steel rebars include tensile testing, bend testing, chemical composition analysis, corrosion resistance testing, and dimensional testing. These tests are crucial in ensuring the strength, durability, and suitability of steel rebars for various construction applications.
- Q:How are steel rebars coated with epoxy?
- Steel rebars are coated with epoxy through a process called epoxy coating or epoxy rebar coating. This process involves applying a layer of epoxy onto the surface of the steel rebar to provide protection against corrosion and other environmental factors. The first step in coating steel rebars with epoxy is to prepare the surface. This includes cleaning the rebars to remove any dirt, oil, or rust that may be present. Surface preparation is crucial as it ensures proper adhesion of the epoxy to the steel surface. Once the surface is prepared, the epoxy coating is applied. There are various methods for applying epoxy, including spraying, brushing, or dipping the rebars into an epoxy solution. The chosen method depends on factors such as the size and shape of the rebars, as well as the desired thickness of the epoxy coating. After the epoxy is applied, the rebars are left to cure. Curing is a process that involves allowing the epoxy to harden and reach its maximum strength. The curing time can vary depending on the specific epoxy product used, but it usually takes several hours or even days for the epoxy to fully cure. Once the epoxy coating is fully cured, the coated rebars are ready for use. The epoxy coating provides a protective barrier that helps prevent the steel rebars from rusting and deteriorating over time. It also improves the rebars' resistance to chemicals, moisture, and other corrosive substances. Overall, epoxy coating is an effective method for protecting steel rebars from corrosion and extending their lifespan. It is widely used in construction projects where rebars are exposed to harsh environmental conditions, such as bridges, buildings, and infrastructure projects.
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HIGH QUALITY DIN HOT ROLLED STEEL REINFORCEMENT BAR
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 100000 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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