Shenzhen Liying Hardware Building Materials Co., Ltd. is located at the intersection of the roads between the beautiful Futian District of Shenzhen and the Hong Kong Special Administrative Region, with unique location and environmental advantages.
The company was founded in 2020. After years of development, the company has total assets of hundreds of millions of yuan, with import and export trade as the main business, the company strives to become a global supply chain management integrated service provider, has a large number of professionals, involved in six series of products, the main product is metal wire, rope and its extension products manufacturing, annual sales capacity of 400,000 tons.
Why Choose Us
Quality control
For each process,we have strict inspection standards,and we always insist that quality is life.
One-stop solution
With rich experience and one-to-one service,we can help you choose products and answer technical questions.
Competitive price
We have a professional purchasing team and costing team,trying to reduce costs and profits,and provide you with a good price.
24h online service
You can contact us to inquire about pre-sales, sales, and after-sales services, and we will give you a very satisfactoryWe are at your service online 24 hours a day.
What Is Rebar?
Rebar (short for reinforcing bar), known when massed as reinforcing steel or reinforcement steel,is a steel bar used as a tension device in reinforced concrete and reinforced masonry structures to strengthen and aid the concrete under tension. Concrete is strong under compression, but has low tensile strength. Rebar significantly increases the tensile strength of the structure. Rebar's surface features a continuous series of ribs, lugs or indentations to promote a better bond with the concrete and reduce the risk of slippage.
Benefits of Rebar
Provides support to structures
The most obvious advantage of the steel rebar is that it provides exceptional support to many different types of structures. As mentioned before, it can be found in foundations, bases, columns, and wall paneling. Oftentimes, a single steel rebar will be connected with multiple rebars in order to form a framework that gives it stability.
The unique design of the steel rebar is what makes it suitable to give reinforcing strength to the qualities of concrete. The rebar’s patterned and textured finish is engineered to strongly adhere to the concrete’s composition.
Once the material has finished setting, the built-in rebar network allows the structure to stand strong and withstand any external stresses that may affect the entire building system.
High ductility
The steel rebar became a common sight in concrete-based construction activities. Unlike concrete, steel is highly ductile. An additional carbon component can easily increase its ductility and allow it to resist against bends and compression forces that are meant to break the material.
Easy assembly
Another benefit of the steel rebar is that it can easily be assembled into place — be it for columns, foundation slabs, paving, drainage, and whatnot. The rebars can be conveniently transferred and set up in a single location with the use of readily-available materials.Two common techniques that have been used to create steel rebar frameworks are tying and welding.
Recyclable
Choosing steel rebars can be a cost-effective option, not just because of their ubiquity, but because they can be recycled multiple times without affecting their properties. Think about all those buildings that have already been demolished. Many of the materials used in their construction — especially the rebar — are still fit to be recycled anew.
Types of Rebar
TMT bars (thermo mechanically treated bars)
Thermo Mechanically Treated Bars are hot treated bars that are high in strength used in reinforced cement concrete (RCC) work. It is the latest induction in the MS steel bars with superior properties such as strength, ductility, welding ability, bending ability and highest quality standards at international level.
High strength deformed bars
High strength deformed bars are cold twisted steel bars with lugs, ribs, projection or deformation on the surface. It the extensively and majorly used for reinforcement purposes in a construction. These bars are produced in sizes or sections from 4 mm to 50 mm in diameter.
European rebar
European rebar is made of manganese, which makes them bend easily. They're not suitable for use in areas that are prone to extreme weather conditions or geological effects, such as earthquakes, hurricanes, or tornadoes. The cost of this rebar is low.
Carbon steel rebar
As the name represents, it is made up of carbon steel and is commonly known as Black Bar due to carbon colour. The main drawback of this rebar is that it corrodes, which adversely effect the concrete and structure. The tensile strength ratio coupled with the value makes black rebar one of the best choices.
Epoxy-coated rebar
Epoxy-coated rebar is black rebar with an epoxy coat. It has the same tensile strength, but is 70 to 1,700 times more resistant to corrosion. However, the epoxy coating is incredibly delicate. The greater the damage to the coating, the less resistant to corrosion.
Galvanized rebar
Galvanized rebar is only forty times more resistant to corrosion than black rebar, but it is more difficult to damage the coating of galvanized rebar. In that respect, it has more value than epoxy-coated rebar. However, it is about 40% more expensive than epoxy-coated rebar.
Glass-fiber-reinforced-polymer (GFRP)
GFRP is made up of carbon fibre. As it is made up of fibre, bending is not allowed. It is very resistant to corrosion and is costly when compared to other rebars.
Stainless steel rebar
Stainless steel rebar is the most expensive reinforcing bar available, about eight times the price of epoxy-coated rebar. It is also the best rebar available for most projects. But, for those who have a reason to use it, stainless steel rebar 1,500 times more resistant to corrosion than black bar; it is more resistant to damage than any of the other corrosive-resistant or corrosive-proof types or rebar; and it can be bent in the field.
Components of Rebar
From scrap steel
Here, scrap steel is collected from various sources at the steel mill and put into a large ladle where the steel is then melted at temperatures up to 1,800° Fahrenheit. In this state, the molten steel will be poured into a casting.
Molten steel
Then, the molten steel is poured into the tundish to make to feed into the caster and avoid splashing. In fact, this method also gives the molten steel a smoother flow. Following, the molten steel is poured into a series of casters that gives the steel its shape. As a result, the shapes formed are known as billets which will be used later in the process to form the rebar.
Rough mill section
Another key point, after the rebar leaves the casters, it then goes into the roughing mill. At the roughing mill, the larger billets will be hot rolled into small shapes by continuously reducing the billet at each stand on the roughing portion of the mill.
Intermediate and finishing sections
After the roughing mill section, the billets pass through the intermediate section of the rolling mill. As it goes through the stands, at this section, the billets begin to take shape into the bars. After the intermediate section of the mill, the bar passes through the finishing section which gives its final shape and that “tied knot” look that is ideal for reinforcing applications.
Cut to size
From here, the bars enter the cutting section; typically, a flying shear saw to specific lengths that are programmed in by the mill operator. Then, the bars exit onto a cooling bed. The cooling section of the mill is used so the material is cooled back to room temperature before the product is sheared to the final customer specific length.
Tips to Handle and Store Steel Rebars
1.Place the rebars over a raised platform. The platforms can be made out of any non-metallic material. For example, the use of wooden pallets as platforms is a viable option.
2.The rebars can be covered using a thick protective tarp and kept secure using cinder blocks at the corners and edges. The protective covering prevents the exposure of the rebars from external elements.
3.Galvanized rebars must be kept away from uncoated rebars and wooden materials. This helps prevent stains on the surface of the rebars. Therefore, for galvanized rebars, any non-metallic platform can be used except wood.
4.Stainless steel rebars must be kept away from carbon steel rebars and other ferrous materials. If space restricts this arrangement, place the stainless steel rebars above all the other rebars.
5.Corrosion in rebars can be prevented by placing the rebars in sheds or in an enclosed space. It should be ensured that the area is not prone to humidity, moisture, snow, and rain.
6.For easy identification and organization, the ends of the different classes of rebars should be painted differently.
7.If possible, the steel reinforcement should be painted with cement wash to prevent scaling and rusting.
8.Long-term storage can be done by stacking the rebars at least 150 mm above the ground level.
9.Stacking of rebars must be performed with sufficient support so that it does not buckle, sag, or bend. Nowadays, special steel racks are manufactured to store rebars.
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FAQ
Q: What is a rebar used for?
Q: Is rebar harder than steel?
Q: Does rebar bend easily?
Q: Should I put rebar in my concrete?
Q: Is rebar stronger than concrete?
Q: Does rebar bend or break?
Q: Is rebar hard to cut?
Q: Is it OK to heat rebar to bend it?
Q: Why does rebar rust so fast?
Q: Will rebar rust through?
Q: Does a 4 inch slab need rebar?
Q: Why is rebar not used in sidewalks?
Q: Can you put too much rebar in a slab?
Q: Does adding rocks to concrete make it stronger?
Q: What is better than rebar?
Q: Should rebar be tied or welded?
Q: Will a propane torch get rebar hot enough to bend?
Q: Will a diamond blade cut rebar?
Q: Can I cut rebar with a Sawzall?
Q: Can I cut rebar with a hacksaw?
As one of the most professional rebar manufacturers and suppliers in China, we're featured by quality products and low price. Please rest assured to buy cheap rebar in stock here from our factory. Contact us for quotation.
galvanized flexible pipe, Shade Structures, Fruit Greenhouse
