Cold Rolled Steel Rebar 14mm

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

Diameter(mm)	Section area (mm²)	Mass(kg/m)	Weight of 12m (kg)	Pcs/ton
6	28.27	0.222	2.664	375.38
8	50.27	0.395	4.74	210.97
10	78.54	0.617	7.404	135.06
12	113.1	0.888	10.656	93.84
14	153.9	1.21	14.52	68.87
16	201.1	1.58	18.96	52.74
18	254.5	2.00	24	41.67
20	314.2	2.47	29.64	33.74
22	380.1	2.98	35.76	27.96
25	490.9	3.85	46.2	21.65
28	615.8	4.83	57.96	17.25
32	804.2	6.31	75.72	13.21
36	1018	7.99	98.88	10.43
40	1257	9.87	118.44	8.44
50	1964	15.42	185.04	5.40

Cold Rolled Techniques

Yield Point: 545-565mpa

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.

Q: What is the tensile strength of different grades of steel rebars?: The tensile strength of different grades of steel rebars can vary depending on the specific grade. Generally, steel rebars range in tensile strength from 400 to 600 megapascals (MPa) for lower grade rebars, while higher grade rebars can have tensile strengths ranging from 600 to 900 MPa or even higher.

Q: Do steel rebars need to be coated with any protective materials?: Yes, steel rebars typically need to be coated with protective materials to prevent corrosion and extend their lifespan. The most common protective coatings for rebars include epoxy, zinc, or a combination of both. These coatings act as a barrier against moisture, chemicals, and other corrosive elements that can damage the steel over time.

Q: Can steel rebars be used in the construction of water treatment plants?: Yes, steel rebars can be used in the construction of water treatment plants. Steel rebars are commonly used in reinforced concrete structures to provide strength and durability. In water treatment plants, where concrete structures are necessary for various components such as tanks, basins, and pipelines, steel rebars are essential for reinforcing the concrete and ensuring the integrity and longevity of the infrastructure.

Q: How are steel rebars connected to each other?: Steel rebars are typically connected to each other using various methods such as overlapping, welding, or using mechanical connectors like couplers or threaded bars.

Q: How are steel rebars handled and stored on construction sites?: Construction projects that require reinforced concrete structures rely on steel rebars, which are also known as reinforcing bars. Ensuring the quality and safety of these rebars when handling and storing them on construction sites is of utmost importance. Upon delivery to the construction site, the steel rebars must undergo inspection for any signs of damage or corrosion. If any rebars are found to be damaged, they should be discarded as they can compromise the project's structural integrity. Additionally, the rebars should be checked for proper labeling, including grade, size, and other specifications. Mechanical lifting equipment, such as cranes or forklifts, is typically used to handle steel rebars. It is crucial to use appropriate lifting tools to prevent mishandling or accidents that could result in injuries. The rebars should be lifted vertically to avoid bending or distortion. Once lifted, the steel rebars should be stored in a designated area called a rebar yard. This yard should be clean, well-drained, and organized to prevent potential damage or corrosion. The rebars should be stacked horizontally on leveled ground, ensuring they do not come into direct contact with the soil or water to avoid rusting. To prevent the rebars from rolling or falling, they should be securely tied together using binding wires or steel bands. This practice not only helps maintain the order and stability of the stored rebars but also prevents accidental damage by keeping them away from other construction materials, machinery, or equipment. Proper storage also involves protecting the rebars from adverse weather conditions. Waterproof tarpaulins or plastic sheets should be used to cover the rebars, preventing moisture absorption and corrosion. Adequate ventilation is necessary to avoid moisture accumulation, which can lead to rusting. Regular inspections of the stored rebars are crucial to identify any signs of damage or deterioration. If any rebars are found to be damaged or rusty, they should be promptly removed and replaced to preserve the structural integrity of the construction project. In conclusion, the handling and storage of steel rebars on construction sites require careful attention. Suitable lifting equipment should be used during handling, and a clean and organized rebar yard is necessary for storage. Regular inspections and maintenance are essential to ensure the rebars' quality and prevent any compromise to the construction project's structural integrity.

Q: Can steel rebars be bent on site?: Yes, steel rebars can be bent on site.

Q: How do steel rebars affect the acoustic properties of a structure?: Steel rebars have a minimal impact on the acoustic properties of a structure. Due to their high density and stiffness, rebars can slightly improve the sound insulation capabilities of a building by reducing sound transmission through walls and floors. However, their influence on other acoustic aspects, such as reverberation or sound absorption, is negligible.

Q: Can steel rebars be used in lightweight concrete construction?: Yes, steel rebars can be used in lightweight concrete construction. In fact, they are commonly used to reinforce lightweight concrete structures such as walls, beams, and columns. The addition of steel rebars provides tensile strength to the concrete, making it more resistant to cracking and structural failure. Lightweight concrete, which typically has a lower density than traditional concrete, can benefit from the use of steel rebars as they help to counteract the lower strength and reduce the risk of deformation under load. However, it is important to choose the appropriate size and spacing of rebars based on the specific requirements and design of the lightweight concrete structure.

Q: What is the difference between grade two and three grade steel?: The grade two steel is HRB335, and the grade three steel is HRB400.

Q: What is the process of removing steel rebars from concrete structures?: The process of removing steel rebars from concrete structures typically involves several steps. First, the concrete surface around the rebar is often chipped away using pneumatic tools or jackhammers to expose the steel. Then, an oxyacetylene torch or a cutting disc is used to cut the rebar into smaller, more manageable pieces. If the rebar is embedded deep within the concrete, a core drilling machine may be used to create a hole around the rebar, allowing for easier removal. Finally, once the rebar is cut or loosened, it can be extracted using heavy machinery or manual labor, depending on the size and weight of the rebar.

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