Reinforced concrete iron rod for building construction
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 18000 m.t./month
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OKorder Financial Service
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Specification
Rebar has ridges that bind it mechanically to the concrete with friction, it can still be pulled out of
the concrete under high stresses, an occurrence that often precedes a larger-scale collapse of the
structure. To prevent such a failure, rebar is either deeply embedded into adjacent structural members,
or bent and hooked at the ends to lock it around the concrete and other rebars. This first approach increases
the friction locking the bar into place while the second makes use of the high compressive strength of concrete
Our Advantage: High quality steel products from 1 class mills in China
Reasonable price
Professionalism of the products
On-time delivery
Complete documents and certificates
Sincere service to meet our clients' requirements
Product Description :
Chemical composition (%): | Steel | C | Si | Mn | P | S | Ceq | ||||
HRB335 |
0.25 |
0.80 |
1.60 |
0.045 |
0.045 | 0.52 | |||||
HRB400 | 0.54 | ||||||||||
HRB500 | 0.55 | ||||||||||
Mechanical properties | Steel | Rel/ MPa | Rm/ MPa | A/ % | Agt/ % | ||||||
≥ | |||||||||||
HRB335 | 335 | 455 | 17 |
7.5 | |||||||
HRB400 | 400 | 540 | 16 | ||||||||
HRB500 | 500 | 630 | 15 | ||||||||
Package: | Standard export packing or as customer's request | ||||||||||
Application: | Construction, building, bridge, road. ect | ||||||||||
Payment terms | 1).100% irrevocable L/C at sight. | ||||||||||
Delivery time | 15-30 days after receipt of L/C or deposit by T/T | ||||||||||
Packing:
In bundles, each bundle weight 3.5 tons. Load by container or by bulk verssel.
Our service
(1) We cooperate with famous factories with advanced equipment and well trained workers.
(2) We can provide factory price with trading company service.
(3) We continuously work on the improvement of our processes, guaranteeing consistently high standards
of quality to keep none compensation.
(4) We guarantee 24 hours response and 48 hours solution providing service.
(5) We accept small order quantity before formal cooperation.
(6) We deliver the agreed quality at the agreed time, reacting to changes in customer wishes in a flexible way.
(7) Due to our volume and selling power, we have excellent freight rates with shipping lines.
(8) We strive to always be fair and honest in our dealings with customers.
(9) We strive to work together with customers to achieve much more than we can achieve alone.
(10) Through our passion and commitment we aim to be a market leader in all our key markets. To maintain
our position as market leader we must continue to add value in all that we do.
FAQ:
1.Q: What's your MOQ(minimum order quantity)?
A: One full container, mixed acceptable .
2. Q: What's your packing methods?
A: Packed in bundle or bulk ..
3. Q: How can I buy CNBM products in my country?
A:Please send us an inquiry or email ,we will reply to you if there is distributor in your country
4. Q: Can we visit your factory?
A: Warmly welcome. Once we have your schedule, we will arrange the professional sales team to follow up your case.
5. Q: How long does it take to get the product if i place an order?
A:With the process of your requirements,we will pack and deliver in 3-7 days. If it is by sea shipment,it will take 15-45 days depending on different locations
- Q:How do steel rebars contribute to the overall sustainability of the construction industry?
- Steel rebars contribute to the overall sustainability of the construction industry in several ways. Firstly, steel rebars are made from recycled materials, reducing the demand for new resources and minimizing the environmental impact of steel production. Additionally, steel rebars are highly durable and have a long lifespan, ensuring the longevity and stability of structures, reducing the need for frequent repairs or replacements. Moreover, the use of steel rebars in reinforced concrete allows for the construction of taller and more complex structures, maximizing the efficient use of land and reducing the need for additional construction projects. Overall, steel rebars play a crucial role in improving the sustainability of the construction industry by promoting resource conservation, durability, and efficient construction practices.
- Q:What is the role of steel rebars in preventing concrete shrinkage?
- Steel rebars play a crucial role in preventing concrete shrinkage. When concrete cures, it tends to shrink and undergoes volumetric changes. This shrinkage can lead to the development of cracks, compromising the structural integrity and durability of the concrete. Rebars, which are steel reinforcement bars, are embedded within the concrete to counteract this shrinkage. The primary function of rebars is to provide tensile strength to the concrete, as concrete is weak in tension but strong in compression. By adding rebars, the concrete becomes reinforced and gains the ability to withstand tensile forces. During the curing process, the concrete shrinks, but the presence of rebars helps distribute the stress and strain caused by this shrinkage. The rebars act as a framework, resisting the shrinkage-induced forces and preventing the formation of significant cracks. Instead of the concrete trying to shrink uniformly across its entire surface, the rebars help to control and limit the shrinkage, minimizing the potential for cracking. Additionally, rebars also contribute to the overall structural stability of the concrete. They enhance the load-bearing capacity, improve resistance against external forces such as earthquakes or heavy loads, and increase the flexural strength of the concrete. By reinforcing the concrete with rebars, the structure becomes more resistant to deformation, ensuring its longevity and safety. In summary, steel rebars play a critical role in preventing concrete shrinkage by providing tensile strength and distributing stress and strain. They reinforce the concrete, enhance its structural stability, and minimize the risk of cracking, thereby ensuring the durability and integrity of concrete structures.
- Q:Can steel rebars be painted or coated?
- Yes, steel rebars can be painted or coated. Painting or coating steel rebars helps to protect them from corrosion and extend their lifespan. It is a common practice in construction and reinforcement projects to apply paint or protective coatings on steel rebars to enhance their durability and resistance to environmental factors.
- Q:Can steel rebars be used in nuclear power plants?
- Indeed, steel rebars are suitable for deployment in nuclear power plants. They are extensively employed in diverse construction undertakings, including nuclear power plants, to fortify concrete structures. By doing so, these rebars enhance the durability and resilience of the concrete, bolstering its capacity to endure various burdens and forces. It is worth noting, however, that the utilization of steel rebars in nuclear power plants necessitates adherence to specific regulations and standards. These regulations might encompass criteria regarding the type of steel employed, its composition, and mechanical characteristics. Furthermore, the rebars must undergo meticulous quality control procedures to ensure that they conform to the required standards and are devoid of any flaws that could jeopardize the structural soundness of the power plant. On the whole, steel rebars can be employed securely in nuclear power plants, provided they satisfy the necessary regulatory requisites and quality control measures.
- Q:How are steel rebars protected from fire damage?
- Steel rebars can be safeguarded against fire damage using a variety of techniques. One commonly employed approach involves applying fire-resistant coatings to the rebars. These coatings are specifically formulated to endure high temperatures and prevent the steel from reaching its critical temperature, at which point its structural integrity would be compromised. Another method involves encasing the rebars in fire-resistant concrete. This specially designed concrete acts as a shield, impeding the direct transfer of heat to the steel rebars and thus safeguarding them from fire damage. Additionally, temporary protection for steel rebars during construction can be provided by using fire-resistant wraps or blankets. These wraps are crafted from materials that are resistant to fire and are directly applied to the rebars, creating a barrier that prevents direct exposure to fire. It is crucial to note that the level of fire protection necessary for steel rebars is contingent upon the specific building codes and regulations in place. These codes typically stipulate the minimum fire resistance rating that must be attained for structural elements, including rebars, in order to guarantee the safety of the building and its occupants.
- Q:How do steel rebars affect the overall ductility of concrete structures?
- The overall ductility of concrete structures is significantly enhanced by the addition of steel rebars. Ductility refers to a material's ability to deform without fracturing under stress. In the case of concrete structures, steel rebars play a crucial role in absorbing and redistributing tensile forces. Concrete is strong in compression but weak in tension. By incorporating steel rebars into the concrete matrix, it becomes more resistant to tensile forces. When a tensile force is applied, the rebars bear the majority of the load, preventing concrete from cracking or failing. This redistribution of stress enhances the overall durability and strength of the structure. Moreover, steel rebars also serve as a warning sign before failure, contributing to the enhancement of ductility in concrete structures. As the tensile strength of the rebars is exceeded, they elongate and deform, indicating that the structure is nearing its limit. This warning allows for timely repairs or reinforcement, preventing catastrophic failures. Another important aspect of steel rebars in improving ductility is their ability to bridge cracks in concrete. When a crack occurs, the rebars act as reinforcement that spans across the crack, preventing it from spreading further. This bridging effect helps maintain the integrity of the structure and facilitates easier repair or rehabilitation. In summary, the inclusion of steel rebars in concrete structures greatly enhances their ductility by increasing tensile strength, providing warning signs before failure, and bridging cracks. This enhanced ductility ensures that the structures can withstand various loads, including seismic events and dynamic forces, while preserving their structural integrity.
- Q:What is the yield strength of different grades of steel rebars?
- The yield strength of different grades of steel rebars can vary depending on the specific grade. However, commonly used grades such as grade 40, grade 60, and grade 75 typically have yield strengths of 40,000 psi, 60,000 psi, and 75,000 psi respectively.
- Q:What are the different grades of steel rebars available?
- The different grades of steel rebars available include Grade 40, Grade 60, Grade 75, and Grade 80, which indicate the minimum yield strength of the rebars in thousands of pounds per square inch (ksi).
- Q:How do steel rebars affect the overall strength of concrete structures?
- The overall strength and durability of concrete structures are significantly improved by the presence of steel rebars. These rebars are commonly used to reinforce concrete and enhance its ability to withstand stretching or pulling forces, known as tensile strength. Concrete itself is strong when compressed but weak when subjected to tension. When external forces, like bending or stretching, are applied to concrete, it tends to crack and fail. This is where steel rebars come into play. By adding rebars to the concrete, the structure's tensile strength is greatly enhanced. Rebars act as a robust framework within the concrete, providing resistance against tensile forces. When the concrete is under tension, the rebars bear the load and distribute it evenly, preventing the formation of cracks and improving the overall strength of the structure. This reinforcement also limits the spread of cracks, ensuring the structure remains intact and stable even under heavy loads or adverse conditions. Additionally, steel rebars enhance the structural integrity of concrete structures by increasing their resistance to bending, shearing, and torsional forces. They make the concrete stiffer and more resistant to deformation, thus improving its capacity to carry loads. Apart from strengthening the structure, steel rebars also play a vital role in preventing corrosion. They are made of materials that resist corrosion, such as stainless steel or galvanized steel, protecting the concrete from moisture and other corrosive elements. This ensures the longevity and durability of the concrete structure. To summarize, steel rebars greatly enhance the overall strength and durability of concrete structures by improving their tensile strength, resistance to bending and shearing forces, and preventing corrosion. They provide the necessary reinforcement to enable concrete to withstand external forces, ensuring the safety and longevity of the structure.
- Q:What is the thermal expansion coefficient of steel rebars?
- In construction projects, it is crucial to take into account the thermal expansion coefficient of steel rebars to avoid potential problems caused by temperature changes. The coefficient refers to the speed at which the rebars expand or contract. Steel is recognized for its relatively low thermal expansion coefficient, which typically measures around 12 x 10^-6 per degree Celsius. This indicates that with each degree rise in temperature, the length of the steel rebar will expand by roughly 0.000012 times its original length. By considering this factor, we can prevent issues like structural instability and cracking resulting from temperature fluctuations.
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Reinforced concrete iron rod for building construction
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 18000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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