steel rebar, deformed steel bar, Iron Rods For Construction

steel rebar, deformed steel bar, Iron Rods For Construction System 1

steel rebar, deformed steel bar, Iron Rods For Construction

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 100 m.t.

Supply Capability:: 1000 m.t./month

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Hot Rolled BS4449 Standard Deformed Steel Rebars for Construction

Specifications

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: What are the advantages of using composite steel rebars?: Using composite steel rebars in construction projects offers numerous benefits. Firstly, they provide superior strength and durability compared to traditional rebars. The combination of steel and a fiber-reinforced polymer (FRP) composite material enhances tensile strength, resulting in a more robust and resilient structure. This is especially advantageous in areas with high seismic activity or extreme weather conditions, where the reinforcement must withstand significant forces. Secondly, composite steel rebars exhibit high resistance to corrosion. Traditional steel rebars are susceptible to corrosion when exposed to moisture and chemicals, causing structural degradation over time. However, the addition of a protective FRP composite layer effectively shields the steel from these corrosive elements, extending the reinforcement's lifespan and reducing the need for frequent maintenance. Furthermore, composite steel rebars offer a lightweight alternative to conventional steel reinforcement. By utilizing FRP composites, the weight of the rebars is significantly reduced while maintaining their structural integrity. This characteristic makes transportation and installation easier, ultimately reducing construction time and costs. Moreover, composite steel rebars possess excellent electrical and thermal insulation properties. Unlike traditional steel rebars, which are conductive, the FRP composite layer acts as an insulator. This minimizes the risk of electrical hazards and prevents the transfer of heat. Such insulation is particularly advantageous in structures that require control over electrical or thermal conductivity, such as power plants or buildings with sensitive equipment. Lastly, composite steel rebars are environmentally friendly. The production of steel rebars typically consumes a significant amount of energy and emits greenhouse gases. However, by utilizing FRP composites, the overall carbon footprint of the reinforcement is reduced, making it a more sustainable choice. In conclusion, the use of composite steel rebars offers enhanced strength, corrosion resistance, lightweight construction, electrical and thermal insulation, and environmental sustainability. These advantages make composite steel rebars a compelling choice for various construction applications.

Q: How do steel rebars affect the overall durability of concrete?: Steel rebars have a significant impact on the overall durability of concrete structures. The presence of steel rebars in concrete enhances its strength and resistance to various external forces and environmental conditions. One of the primary functions of steel rebars is to provide tensile strength to concrete, which is otherwise weak in resisting tension. Concrete is excellent in compression but tends to crack under tension. By embedding steel rebars within the concrete, these cracks are effectively controlled and prevented from expanding, thus improving the durability of the structure. Steel rebars also help in increasing the flexural strength of concrete, making it more capable of withstanding bending and deformations. This is particularly crucial in structures such as beams, columns, and slabs that experience significant loads and forces during their lifespan. Moreover, steel rebars act as a reinforcement in concrete, improving its resistance to external factors such as earthquakes, wind, and impact loads. The presence of rebars helps in distributing and dissipating these forces throughout the structure, reducing the chances of structural failure and increasing the overall durability. Another critical aspect is the prevention of corrosion in reinforced concrete structures. The steel rebars are typically coated with materials that protect them from corrosion caused by moisture and chemical reactions. This protective coating, coupled with the alkaline environment of concrete, creates a barrier that significantly slows down the corrosion process, thereby increasing the longevity and durability of the concrete structure. In conclusion, steel rebars play a vital role in enhancing the overall durability of concrete structures. They provide the necessary tensile strength, improve flexural strength, enhance resistance to external forces, and prevent corrosion. By incorporating steel rebars, concrete becomes more robust, long-lasting, and capable of withstanding various challenges, ensuring the longevity and safety of the structure.

Q: How do steel rebars resist shear forces in concrete structures?: Steel rebars resist shear forces in concrete structures by providing additional strength and reinforcement. The rebars are embedded within the concrete, creating a composite material that can withstand shear stresses. The steel rebars help to distribute the shear forces evenly throughout the structure, preventing cracks and failure. Additionally, the high tensile strength of the steel rebars allows them to resist deformation and displacement under shear loads, ensuring the stability and integrity of the concrete structure.

Q: What are the typical costs associated with using steel rebars in a construction project?: The typical costs associated with using steel rebars in a construction project can vary depending on several factors. These factors include the size and type of the rebar, the quantity needed, the market conditions, and the location of the project. The cost of steel rebars is usually determined per ton or per linear foot. The price per ton can range from $400 to $600, while the price per linear foot can be anywhere between $0.75 to $1.50. It is important to note that these prices are approximate and can fluctuate based on market demand and availability. Additionally, there may be additional costs involved in the procurement and handling of steel rebars. This can include transportation fees, storage costs, and any necessary equipment or tools required for installation. Other cost considerations may include labor expenses for cutting, bending, and placing the rebars, as well as any reinforcement detailing required by the project's design specifications. These costs can vary depending on the complexity of the project and the skill level of the laborers involved. It is also essential to factor in any potential wastage or scrap material that may occur during the construction process. Proper planning and accurate measurements can help minimize these costs. Overall, the typical costs associated with using steel rebars in a construction project can be significant, but they are necessary for ensuring structural integrity and reinforcement. It is advisable to obtain quotes from multiple suppliers and contractors to ensure competitive pricing and to carefully consider the specific requirements of the project before finalizing the budget.

Q: What are the environmental impacts of using steel rebars in construction?: The environmental impacts of using steel rebars in construction include the extraction and processing of raw materials, such as iron ore, which can contribute to deforestation, habitat destruction, and emissions of greenhouse gases. The production of steel also requires significant amounts of energy and water, leading to carbon dioxide emissions and potential water pollution. Additionally, the disposal of steel waste and the potential for corrosion can contribute to land and water pollution. However, steel rebars can also have positive environmental impacts, as they are durable, recyclable, and can contribute to the overall sustainability of a structure.

Q: How do steel rebars affect the thermal properties of a structure?: The thermal properties of a building or structure can be significantly influenced by steel rebars, which are commonly used in reinforced concrete structures. To begin with, steel rebars have a higher thermal conductivity than concrete. This means that when embedded within concrete, they can serve as thermal bridges, allowing heat to easily transfer through the structure. Consequently, there is increased heat loss during colder months and increased heat gain during warmer months, leading to higher energy consumption for heating and cooling. Additionally, the thermal expansion and contraction of the structure can be affected by steel rebars. Compared to concrete, steel has a higher coefficient of thermal expansion, causing it to expand and contract more with temperature changes. This differential movement between the steel rebars and the surrounding concrete can result in cracks and structural deformations, compromising the overall thermal performance of the structure. Moreover, the moisture behavior of a structure can also be influenced by steel rebars. As previously mentioned, steel has a higher thermal conductivity and electrical conductivity than concrete. This electrical conductivity can promote the corrosion of steel rebars when they come into contact with moisture or water. Consequently, corrosion leads to the formation of rust, which expands and further damages the surrounding concrete. This, in turn, increases moisture ingress, compromising the insulation properties of the structure and potentially causing mold growth and other moisture-related issues. To conclude, steel rebars have direct and indirect impacts on the thermal properties of a structure. They 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 implemented to mitigate these effects and ensure optimal thermal performance.

Q: What are the weight and density of steel rebars?: Steel rebars, also known as reinforcing bars, are commonly used in construction to provide tensile strength to concrete structures. The weight and density of steel rebars can vary depending on their size and grade. The weight of a steel rebar is determined by its cross-sectional area and the specific weight of steel, which is approximately 7850 kilograms per cubic meter (or 0.2836 pounds per cubic inch). The cross-sectional area is typically measured in square millimeters or square inches. For example, a common size of steel rebar is the #4 bar, which has a diameter of 12.7 millimeters (or 0.5 inches) and a cross-sectional area of 127 square millimeters (or 0.197 square inches). Using the specific weight of steel, we can calculate the weight of a #4 rebar as follows: Weight = Cross-sectional area x Specific weight of steel Weight = 127 mm^2 x 7850 kg/m^3 Weight = 998,950 grams or approximately 998.95 kilograms (or 2,201 pounds) In terms of density, the density of steel rebars is the same as the specific weight of steel, which is approximately 7850 kilograms per cubic meter. This density is relatively consistent across different sizes and grades of steel rebars. It is important to note that the weight and density of steel rebars can vary slightly depending on the specific composition and manufacturing process. Therefore, it is always recommended to refer to the manufacturer's specifications or consult engineering references for accurate and up-to-date information.

Q: How do steel rebars affect the overall construction cost?: Steel rebars can significantly impact the overall construction cost. While they add to the initial expenses, their use enhances the structural integrity and durability of the building, resulting in long-term cost savings by reducing maintenance and repair expenses. Additionally, steel rebars provide strength and reinforcement, allowing for the construction of taller and more complex structures, which may increase the overall cost but also enhance the building's value and functionality.

Q: What is the role of steel rebars in ensuring structural stability?: Steel rebars play a crucial role in ensuring structural stability in various construction projects. These reinforced bars are primarily used to strengthen concrete structures, such as buildings, bridges, and highways, by providing additional tensile strength. Concrete is a highly versatile material that can withstand compressive forces effectively. However, it has limited resistance to tensile forces. This is where steel rebars come into play. By reinforcing concrete with steel rebars, the resulting composite material can effectively resist both compressive and tensile forces, enhancing its overall structural stability. When subjected to loads, such as the weight of the structure or external forces like wind or seismic activity, the concrete experiences tensile stresses. Without reinforcement, these tensile stresses can cause cracks and ultimately lead to structural failure. Steel rebars, being highly ductile and strong in tension, can absorb and distribute these tensile forces throughout the structure. The placement and arrangement of steel rebars are carefully designed to ensure optimal reinforcement. They are typically embedded within the concrete in a grid-like pattern, forming a reinforced concrete matrix. This matrix strengthens the structure and prevents cracks from propagating, effectively increasing its load-bearing capacity and durability. Moreover, steel rebars also play a vital role in maintaining the structural integrity of concrete structures over time. They help combat the effects of shrinkage, expansion, and temperature fluctuations that can cause cracking. By providing a strong and flexible reinforcement system, steel rebars minimize the risks of structural damage and ensure the long-term stability of the construction. Overall, the role of steel rebars in ensuring structural stability can be summarized as follows: they increase the tensile strength of concrete, prevent cracks and structural failure, enhance load-bearing capacity, and promote long-term durability. By reinforcing concrete structures with steel rebars, engineers can create resilient and safe constructions that can withstand various forces and maintain their integrity for decades.

Q: How do steel rebars affect the fire resistance of a structure?: Steel rebars can have both positive and negative effects on the fire resistance of a structure. On one hand, steel rebars can enhance the fire resistance of a structure by providing additional strength and stability. The presence of steel rebars in concrete structures can help prevent collapse during a fire, allowing more time for occupants to evacuate and emergency responders to control the situation. However, steel rebars also have some drawbacks when it comes to fire resistance. Steel is a highly conductive material, meaning it can transfer heat quickly. During a fire, the steel rebars can heat up and transfer the heat to the surrounding concrete, potentially weakening its structural integrity. This can result in a reduced fire resistance of the structure. To mitigate the negative effects of steel rebars on fire resistance, certain measures can be taken. One common approach is to apply fire-resistant coatings or wraps to the steel rebars. These coatings or wraps act as a barrier, slowing down the heat transfer from the steel to the concrete, thus enhancing the fire resistance. Additionally, the size, spacing, and arrangement of steel rebars can also impact the fire resistance of a structure. Proper design and placement of rebars can ensure that the heat is distributed more evenly, reducing the risk of localized weakening and structural failure. In summary, steel rebars can have a significant impact on the fire resistance of a structure. While they can enhance the overall strength and stability, they can also contribute to the heat transfer and potential weakening of the structure. By implementing appropriate measures such as fire-resistant coatings and proper design, the negative effects of steel rebars on fire resistance can be minimized, ensuring the safety and integrity of the structure during a fire.

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