Five Point Five mm Cold Rolled Steel Rebars in coils

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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Specifications of Steel Rebar:

Name	Cold Rolled Steel Rebar
Diameter	5mm, 5.5mm, 6mm, 6.5mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm,

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 has1-2 labels
Application	Building, construction
Invoicing	Actual or Theoretical Weight Basis as buyer’s request.

Theoretical weight and section area of each diameter as below for your information:

Diameter(mm)	Section area (mm²)	Mass(kg/m)
5.5	23.7	0.186

Packaging & Delivery of 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

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

Q:What are the different shapes of steel rebars?: The different shapes of steel rebars include plain round bars, deformed bars, square bars, and rectangular bars.

Q:How do steel rebars bond with concrete?: Steel rebars bond with concrete through a process called mechanical interlock, where the rough surface of the rebar provides better adhesion to the concrete. Additionally, the alkaline environment of the concrete forms a thin layer of iron oxide on the surface of the rebar, which further enhances the bond and prevents corrosion.

Q:What are the common sizes of steel rebars?: The common sizes of steel rebars vary, but some commonly used sizes include #3 (3/8-inch diameter), #4 (1/2-inch diameter), #5 (5/8-inch diameter), #6 (3/4-inch diameter), and #8 (1-inch diameter).

Q:How do steel rebars prevent the concrete from cracking under tension?: Steel rebars prevent concrete from cracking under tension by providing reinforcement and increasing the tensile strength of the concrete. When the concrete undergoes tensile stress, which is the force that tends to pull it apart, the rebars distribute the stress across a larger area and absorb some of the tension. This helps to prevent the concrete from cracking by reducing the amount of stress applied to any one area and providing additional strength to withstand the forces acting upon it.

Q:How do steel rebars affect the overall acoustic properties of a structure?: The overall acoustic properties of a structure are greatly affected by steel rebars, also known as reinforcement bars. Steel rebars can have both positive and negative effects on the acoustic characteristics of a building or infrastructure. One way in which steel rebars impact the acoustic properties is through their ability to transmit sound vibrations. Steel, being a good conductor of sound, easily allows sound waves to travel. Consequently, when steel rebars are present in a structure, they act as pathways for sound transmission, allowing it to easily travel throughout the building. This can result in increased noise levels and reduced acoustic privacy, as sound waves can travel through the steel rebars and reach different areas of the structure. However, steel rebars can also contribute to the overall sound insulation of a structure. When properly installed and integrated with other construction materials like concrete or acoustic insulation materials, steel rebars help reduce the transmission of sound waves. The stiffness and mass of steel rebars help dampen the vibrations caused by sound waves, thereby reducing the amount of sound that passes through the structure. This enhances the acoustic comfort within the building, creating a quieter environment suitable for various activities that require reduced noise levels. It is important to note that the impact of steel rebars on the acoustic properties of a structure depends on various factors, including the thickness and density of the surrounding construction materials, the arrangement and spacing of the rebars, and the overall design of the building. Additionally, the use of additional acoustic treatments like sound-absorbing panels or insulation can further improve the acoustic performance of a structure by mitigating the negative effects of steel rebars. In conclusion, steel rebars play a significant role in the overall acoustic properties of a structure. While they can facilitate the transmission of sound waves, they can also contribute to sound insulation when combined with appropriate construction materials and techniques. Proper design and implementation, along with the use of additional acoustic treatments, are crucial in achieving the desired acoustic environment in buildings and infrastructure where steel rebars are present.

Q:Can steel rebars be used in precast concrete?: Yes, steel rebars can be used in precast concrete. Rebars provide reinforcement and strength to the concrete structure, making it more durable and resistant to cracking. They are commonly used in precast concrete elements such as beams, columns, and slabs to enhance their structural integrity.

Q:How do steel rebars help in preventing cracks in concrete structures?: Steel rebars contribute to the prevention of cracks in concrete structures by providing reinforcement and enhancing the tensile strength of the concrete. While concrete possesses strength in compression, it lacks strength in tension, making it prone to cracking when exposed to external forces or temperature changes. However, by embedding steel rebars within the concrete, the rebars absorb the tensile forces, thereby preventing the concrete from cracking. The rebars function as a framework within the concrete, evenly distributing the tension forces and averting the formation of significant cracks. This reinforcement also regulates the size and width of any cracks that do appear, minimizing their impact on the overall structural integrity. Moreover, steel rebars assist in crack prevention by enhancing the ductility of concrete. Ductility refers to a material's ability to deform without breaking. The steel rebars offer flexibility to the concrete, allowing it to undergo minor deformations without cracking. Furthermore, steel rebars aid in crack prevention by mitigating the effects of shrinkage and expansion. As concrete dries, it tends to shrink, while exposure to high temperatures causes it to expand. These forces of shrinkage and expansion can lead to cracking. However, the presence of steel rebars counteracts these effects by absorbing and dispersing the forces. In conclusion, steel rebars play a vital role in averting cracks in concrete structures by reinforcing the concrete, augmenting its tensile strength, improving its ductility, and counterbalancing the effects of shrinkage and expansion. This reinforcement ensures the concrete's structural integrity and durability, rendering it more resistant to cracking and enhancing its overall performance and lifespan.

Q:How do steel rebars improve the load-carrying capacity of concrete?: Steel rebars improve the load-carrying capacity of concrete through a combination of reinforcement and strength enhancement. When steel rebars are embedded within the concrete, they provide tensile strength to a material that is otherwise weak in tension. This is because concrete is strong in compression but relatively weak in tension. The rebars act as a support system within the concrete, distributing the load more evenly and preventing cracks or failure. When a load is applied to the concrete, the rebars resist the tensile forces and help to hold the concrete together, increasing its ability to carry and distribute the load. Furthermore, steel rebars also enhance the ductility of concrete. Ductility refers to the ability of a material to deform without fracturing. By adding steel rebars, the concrete becomes more flexible and capable of withstanding greater stress and strain without failure. This is particularly important in structures subject to earthquakes, as the ability to absorb and dissipate energy is crucial for their overall integrity. In summary, steel rebars improve the load-carrying capacity of concrete by reinforcing it with tensile strength, distributing the load more evenly, preventing cracks, and enhancing its overall ductility. This combination of reinforcement and strength enhancement significantly increases the structural stability and durability of concrete structures.

Q:Can steel rebars be used in structures with extreme temperature variations?: Structures that experience extreme temperature variations can generally utilize steel rebars. Steel possesses exceptional durability and strength due to its high melting point, making it suitable for various construction applications. However, there are several factors to consider when employing steel rebars in such structures. To begin with, steel exhibits thermal expansion, meaning it expands and contracts as temperatures fluctuate. If not properly addressed, this expansion and contraction can potentially stress and strain the structure. Engineers and architects counteract this issue by implementing design techniques such as incorporating expansion joints or allowing for thermal movement. These measures accommodate the steel's thermal expansion and prevent damage. Additionally, extreme temperature variations can impact the mechanical properties of steel. Exposure to high temperatures can cause steel to lose its strength and stiffness, compromising the structural integrity. Conversely, low temperatures can make the steel brittle, increasing the likelihood of cracks or fractures. Therefore, it is crucial to select steel rebars of the appropriate grade and quality, specifically designed to withstand the expected temperature variations. Furthermore, the type and purpose of the structure should be taken into consideration. For example, in structures where extreme temperature variations are anticipated, such as bridges or buildings in regions with hot summers and cold winters, thermal insulation or other measures should be incorporated into the design. These measures prevent excessive heat transfer or the accumulation of thermal stress. In conclusion, steel rebars can be employed in structures experiencing extreme temperature variations, but careful considerations must be made. By accounting for thermal expansion, selecting suitable steel grades, and incorporating design techniques to accommodate temperature changes, the structural integrity and performance can be maintained. This ensures the safety and longevity of the construction.

Q:Can steel rebars be used in structures with limited construction equipment?: Yes, steel rebars can be used in structures with limited construction equipment. Steel rebars are durable and versatile construction materials that can be easily handled and installed even with limited equipment. Their flexibility allows for various construction methods, including manual placement and bending, making them suitable for projects with limited machinery. Additionally, steel rebars' strength and resistance to corrosion make them a reliable choice for structures in such conditions.

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