GR40 deformed steel bar for construction

GR40 deformed steel bar for construction System 1

GR40 deformed steel bar for construction

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 10000 m.t./month

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Product Description:

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

Diameter(mm)	Section area (mm²)	Mass(kg/m)	Weight of 12m bar(kg)
6	28.27	0.222	2.664
8	50.27	0.395	4.74
10	78.54	0.617	7.404
12	113.1	0.888	10.656
14	153.9	1.21	14.52
16	201.1	1.58	18.96
18	254.5	2.00	24
20	314.2	2.47	29.64
22	380.1	2.98	35.76
25	490.9	3.85	46.2
28	615.8	4.83	57.96
32	804.2	6.31	75.72
36	1018	7.99	98.88
40	1257	9.87	118.44
50	1964	15.42	185.04

Usage and Applications of Construction

1. Construction steel round bar is mostly used for straight bundles supply, and used for steel, bolts and various mechanical parts. While the bigger round bar, or more than 25mm hot rolled bar, is mainly for the manufacture of mechanical parts or for seamless steel billet.

2. Steel round bar is used in construction and a large number of architectural and engineering structures.

3. Besides, we can supply some especial material steel round bar that can be used for main shaft of steamer, hummer shank, with big section and supper force.

Packaging & Delivery

Packaging Detail: All goods are packed in bundle with steel strips and shipped by break bulk vessel or container (depend on target market and different ports)

Delivery Detail: 45 days

Trade terms: FOB, CFR, CIF

MOQ: 25 tons per specification; we can negotiate the quantity if the specification is normal or we have stock of one specification.

Weight: Theprice invoicing on theoretical weight basis or actual weight basis depends on customer’s request.

Shipment: The shipment of bulk break or container is depends on customer’s request and the situation of the port of destination.

Documents given: Full set of original clean on board bill of lading; Original signed commercial invoice; Original packing list; Policy of insurance; Certificate of origin and what the target market needs.

GR40 deformed steel bar for construction

Q:Can steel rebars be used in structures with limited construction permits?: No, steel rebars cannot be used in structures with limited construction permits. The use of steel rebars in construction typically requires proper permits and approvals due to safety and structural considerations.

Q:Can steel rebars be used in non-structural applications?: Yes, steel rebars can be used in non-structural applications. They are commonly used in applications such as concrete reinforcement for sidewalks, driveways, and patios, as well as in construction projects that require additional strength and durability.

Q:How are steel rebars protected against alkali attacks?: Steel rebars are protected against alkali attacks by applying a protective coating or by using corrosion-resistant materials such as stainless steel rebars. Additionally, proper concrete mix design, including the use of low alkali cement and supplementary cementitious materials, can help mitigate alkali attacks on steel rebars.

Q:What are the guidelines for inspecting steel rebars on a construction site?: Inspecting steel rebars on a construction site requires adherence to specific guidelines to ensure the structural integrity and compliance with safety standards. Here are some essential guidelines for inspecting steel rebars: 1. Visual Inspection: Begin by visually assessing the entire rebar installation, checking for any signs of damage, rust, or corrosion. Look for proper alignment, spacing, and placement of rebars as per the construction drawings. 2. Rebar Size and Type: Verify that the rebars used match the specifications outlined in the construction plans. Inspect the size, grade, and type of steel rebars to ensure they meet the required standards and are suitable for the intended load-bearing capacity. 3. Placement and Spacing: Ensure that rebars are properly spaced and positioned according to the design drawings. Check for proper lap length (the overlapping of rebars) to ensure structural stability and load distribution. 4. Clear Cover: Inspect the clear cover, which is the distance between the outer surface of the rebar and the surface of the concrete. Verify that the clear cover meets the specified requirements, as it is crucial for corrosion protection and structural durability. 5. Vertical Alignment: Check the vertical alignment or plumbness of the rebars. They should be straight and in line with the required position, avoiding excessive bending or curving. 6. Rebar Connections: Inspect the connections between rebars, such as lap splices or mechanical couplers. Verify that the connections are properly made and comply with approved construction standards. 7. Welding: If welding is used to join rebars, ensure that it is performed by certified welders and meets the required specifications. Inspect the quality of welding joints, including the penetration depth and the absence of defects or cracks. 8. Protective Coating: Verify the presence and condition of any protective coating applied to the rebar, such as epoxy coatings or galvanization, to prevent corrosion and increase longevity. 9. Documentation: Maintain detailed records of the inspection process, including photographs, measurements, and any deviations or corrective actions taken. These records will serve as essential documentation for quality control and future reference. 10. Compliance with Codes and Standards: Ensure that the inspection adheres to relevant local building codes, industry standards, and project specifications. Familiarize yourself with the applicable regulations to ensure compliance throughout the inspection process. By following these guidelines, construction site inspectors can help ensure the quality, safety, and longevity of steel rebars, ultimately contributing to the overall success of the construction project.

Q:Can steel rebars be used in power plant construction?: Power plant construction can indeed utilize steel rebars. These rebars, also referred to as reinforcing bars, are frequently employed in the construction sector to provide concrete structures with strength and support. In power plant construction, it is common practice to reinforce concrete foundations, walls, and structural components like columns and beams with steel rebars. The remarkable tensile strength and durability of these rebars make them highly suitable for enduring the heavy loads and extreme conditions typically encountered in power plant environments. Additionally, steel rebars can enhance the overall strength and stability of power plant infrastructure by being employed in the construction of reinforcing cages for underground pipelines and cooling towers.

Q:How are steel rebars stored and transported?: Construction projects commonly use steel rebars, which are also known as reinforcing bars. The purpose of steel rebars in construction is to provide strength and stability to concrete structures. It is vital to properly store and transport steel rebars to maintain their quality and prevent any damage or accidents. Regarding storage, steel rebars are typically kept in a designated area known as a rebar yard or laydown yard. This area should be clean, well-drained, and free from debris or organic materials. To prevent corrosion or contamination, rebars are usually stacked in bundles or placed on elevated racks to avoid contact with the ground. To ensure safety and easy access, rebars should be organized and labeled based on their sizes and grades. This helps construction workers quickly identify and retrieve the required rebars without causing any disruption or delays in the project. When it comes to transportation, steel rebars are commonly loaded onto trucks or trailers for delivery to construction sites. It is crucial to secure the rebars adequately during transportation to avoid any shifting or movement that could damage the rebars or compromise the safety of the vehicle. Depending on their length and quantity, rebars can be transported in various ways. They can be bundled together using wires, straps, or steel bands to keep them in place. Additionally, wooden or metal supports can be used to prevent the rebars from bending or sagging during transit. During transportation, it is important to consider weight restrictions and road regulations to ensure compliance and safety. If rebars need to be transported over long distances, it is essential to coordinate with logistics companies that specialize in handling heavy and oversized cargo. In conclusion, steel rebars are stored in designated areas like rebar yards, where they are stacked, labeled, and protected from corrosion and contamination. During transportation, rebars are secured using wires, straps, or steel bands and loaded onto trucks or trailers. Proper handling and adherence to regulations are crucial to ensure the safety and integrity of the rebars during storage and transportation.

Q:Can steel rebars be used in combination with other reinforcement materials?: Yes, steel rebars can be used in combination with other reinforcement materials such as fibers, wire mesh, or carbon fiber sheets to enhance the overall strength and durability of concrete structures. This combination of reinforcement materials provides a more effective solution for reinforcing concrete and can meet specific project requirements.

Q:How do steel rebars contribute to the overall sustainability of a project?: There are several ways in which steel rebars contribute to the overall sustainability of a project. Firstly, their high durability and long lifespan mean they do not need frequent replacement, reducing resource consumption and minimizing the need for new material production. This, in turn, decreases the environmental impact of the project. Moreover, steel rebars are fully recyclable. When they reach the end of their life cycle, they can be easily collected, melted down, and repurposed into new steel products. This recycling process significantly reduces the demand for raw materials, conserves energy, and reduces landfill waste. Additionally, steel rebars provide structural strength and enhance the overall safety and resilience of the project. By reinforcing concrete structures, they increase load-bearing capacity and resistance to external forces like earthquakes or extreme weather events. This ensures the project's longevity and stability, reducing the need for future repairs or reconstruction. Lastly, the use of steel rebars in construction projects often leads to shorter construction time and lower maintenance costs. Their ease of handling and installation allows for efficient construction processes, resulting in reduced energy consumption and lower greenhouse gas emissions. Furthermore, their durability and low maintenance requirements minimize the need for ongoing repairs and replacements, resulting in cost savings over the project's lifespan. In conclusion, steel rebars contribute to the overall sustainability of a project through their durability, recyclability, and ability to enhance structural strength and safety. Their use reduces resource consumption, waste generation, and energy consumption, while also providing long-term cost savings. Incorporating steel rebars in construction projects is a sustainable choice that supports environmental conservation, economic efficiency, and social resilience.

Q:How do steel rebars provide strength to concrete structures?: Steel rebars provide strength to concrete structures by acting as reinforcement. When embedded within the concrete, rebars enhance its tensile strength, which is otherwise low. As concrete is strong in compression but weak in tension, the rebars resist the tensile forces that can cause cracking or failure in the structure. By distributing and absorbing these tensile forces, steel rebars increase the overall strength, durability, and structural integrity of the concrete.

Q:How do steel rebars affect the overall corrosion resistance of marine structures?: Steel rebars have a significant impact on the overall corrosion resistance of marine structures. The presence of steel rebars in concrete marine structures can enhance or deteriorate their resistance to corrosion, depending on various factors. Firstly, steel rebars can enhance corrosion resistance when proper preventive measures are taken. For instance, if the rebars are adequately coated with anti-corrosion materials such as epoxy or zinc, they can provide an extra layer of protection against the corrosive effects of seawater. Additionally, proper concrete cover and compaction during construction can help prevent the penetration of seawater to the rebars, reducing the risk of corrosion. On the other hand, if steel rebars are not properly coated or if the concrete cover is insufficient, they can contribute to the degradation of marine structures. When exposed to the aggressive marine environment, rebars can undergo corrosion, leading to the formation of rust. The rust occupies more space than steel, causing an expansion that exerts pressure on the surrounding concrete. This pressure can result in cracking and spalling of the concrete, further exposing the rebars to corrosion and compromising the overall structural integrity of the marine structure. To mitigate the negative effects of steel rebars on corrosion resistance, regular maintenance and inspection are crucial. Periodic inspections can help identify any signs of corrosion, allowing for timely repairs or replacement of rebars. Additionally, cathodic protection systems can be implemented to provide an electrochemical countermeasure against corrosion, ensuring the longevity and durability of the marine structure. In conclusion, steel rebars play a vital role in the corrosion resistance of marine structures. Proper coating, concrete cover, and maintenance measures are essential in ensuring the rebars' positive contribution to corrosion resistance, while neglecting these factors can lead to the degradation of marine structures.

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