Rebar is measured by length (so inches or mm) and is usually followed with by weight.
There are various sizes (diameters) of bars. Each size has a weight per length than you determined weight by length X barsize weight per length. It can be done in metric or imperial, just have the appropriate and corresponding chart that is relevant. For projects, the total rebar weight of the job is usually what is used to tell overall scope of project size.
The placement of steel reinforcing is dependent on the requirements of the strength and load-bearing of the concrete. A structural engineer should be contacted in this regard.
The standard length of rebars in the market typically ranges from 20 to 60 feet (approximately 6 to 18 meters), with 40 feet being a common length. However, manufacturers may also produce custom lengths to meet specific project requirements. In some regions, shorter lengths like 10 or 12 feet may also be available for smaller applications. It's important to check local standards and supplier offerings for precise options.
The answer will depend on what has a measure of 84 deg and the object for which the measure is required.
It is a measure of the centre.
To measure length around objects.
To prevent injury.
rebars
C 11 specification
There is no constant value for the ratio of the rebars and concrete volume. The rebars depends on the structural designer's safety factor and the factors affecting the framing like wind, earthquake and soil.
Middle strip
The unit weight of 16 mm reinforcement is 1.58 kg/m
350x450mm with 12-16mm rebars on 5m span
Waist slab is used in case of stairs. The rebars are bent at some angles on which steps are built.
Rebars are used for reinforcing concrete and making it stronger and more reliable. While concrete is very good at withstanding compression (being pushed together), it doesn’t handle tension (being pulled apart) well on its own. Rebars, or reinforcing bars, are placed inside the concrete to help it resist tension and bending forces. This added strength prevents cracks and structural failure, ensuring that buildings, bridges, foundations, and other concrete structures stay safe and last longer. Rebars are used in a wide range of construction applications — from residential homes to large-scale industrial and infrastructure projects. The correct placement, size, and bending of rebars are essential for the structure’s overall stability and performance. That’s why rebar detailing is so important. Silicon Engineering Consultants offers rebar detailing services that provide accurate, practical drawings showing how rebars should be arranged within a structure. These detailed plans help reduce errors during construction, save time, and improve safety on-site. In summary, rebars are used for strengthening concrete so it can handle both compression and tension, playing a vital role in the durability of concrete structures.
The unit weight of rebars is typically around 7.85 kg/m³. In a reinforced concrete mix with a compressive strength of 60 MPa, the amount of reinforcement steel used is usually between 1-2% of the total volume of concrete. Therefore, the weight of rebars per cubic meter of reinforced concrete at 60 MPa would be approximately 78.5 kg/m³ to 157 kg/m³.
The placement of steel reinforcing is dependent on the requirements of the strength and load-bearing of the concrete. A structural engineer should be contacted in this regard.
sir, i want to take core test for the length of 75cm in concrete if the rebars obstruct what have to do?