Rebar, or reinforcement steel, is an essential component in the construction industry for creating sturdy and durable structures. It is used to provide support and strength to concrete in various construction projects such as buildings, bridges, and roads. In Canada, one of the standard sizes of rebar used is 10M, 15M, 20M, 25M, 30M, 35M, 45M, and 55M. Understanding the weight of these different rebar sizes is crucial for ensuring the structural integrity and safety of a project. In this article, we will delve into the details of the weight of 10M, 15M, 20M, 25M, 30M, 35

## Weight of 10M, 15M, 20M, 25M, 30M, 35M, 45M, 55M Canadian rebar

The weight of Canadian rebar varies depending on the size and length of the bar. Rebar, or reinforcing bar, is a type of steel reinforcement used in concrete structures to provide additional strength and support.

In Canada, rebar sizes are typically represented in millimeters (mm). The most commonly used sizes are 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 45mm, and 55mm. The length of rebar can range from 6 meters to 18 meters, with longer lengths being used in larger construction projects.

10M Canadian rebar has a diameter of 10mm and weighs approximately 0.62 kilograms per meter. This means that a 6-meter length of 10M rebar will weigh approximately 3.72 kilograms.

15M Canadian rebar has a diameter of 15mm and weighs approximately 1.41 kilograms per meter. A 6-meter length of 15M rebar will weigh approximately 8.46 kilograms.

Similarly, 20M Canadian rebar has a diameter of 20mm and weighs approximately 2.47 kilograms per meter. A 6-meter length of 20M rebar will weigh approximately 14.82 kilograms.

25M Canadian rebar has a diameter of 25mm and weighs approximately 3.85 kilograms per meter. A 6-meter length of 25M rebar will weigh approximately 23.10 kilograms.

30M Canadian rebar has a diameter of 30mm and weighs approximately 5.55 kilograms per meter. A 6-meter length of 30M rebar will weigh approximately 33.30 kilograms.

35M Canadian rebar has a diameter of 35mm and weighs approximately 7.55 kilograms per meter. A 6-meter length of 35M rebar will weigh approximately 45.30 kilograms.

45M Canadian rebar has a diameter of 45mm and weighs approximately 12.47 kilograms per meter. A 6-meter length of 45M rebar will weigh approximately 74.82 kilograms.

Lastly, 55M Canadian rebar has a diameter of 55mm and weighs approximately 19.62 kilograms per meter. A 6-meter length of 55M rebar will weigh approximately 117.72 kilograms.

The weight of rebar is an important consideration in construction projects, as it affects the cost of materials and the overall weight of the structure. It is also important to ensure that the weight of the rebar used is appropriate for the type and size of the concrete structure being built.

## Metric Mass/ weight of 10M rebar

Metric mass, also known as weight, is a unit of measurement that is used to quantify the amount of matter present in an object. In the construction industry, metric mass is often used to specify the weight of construction materials, such as steel reinforcement bars (rebar).

A widely-used type of rebar is the 10M rebar, which refers to a metric-sized bar with a diameter of 10 millimeters. The letter “M” in the name stands for “metric”, indicating that the bar is measured in the metric system instead of the imperial system.

The weight of a 10M rebar is typically expressed in kilograms (kg) or metric tons (t). The exact weight can vary depending on the type of steel used and the specific manufacturer, but it is generally around 0.62 kg per meter of length. This means that a one-meter long 10M rebar weighs approximately 0.62 kg.

For longer lengths, the weight can be calculated by multiplying the length (in meters) by 0.62 kg. For example, a 10-meter long 10M rebar would have a weight of 6.2 kg (10m x 0.62 kg/m = 6.2 kg).

In metric tons, a 10M rebar would weigh 0.00062 t per meter. This can be converted to kilograms by multiplying by 1000, so a 10-meter long 10M rebar would have a weight of 0.0062 t (0.00062 t x 10m = 0.0062 t) or 6.2 kg (0.0062 t x 1000 = 6.2 kg).

When working with large quantities of 10M rebar, the weight is typically expressed in metric tons for convenience. For example, a construction project may require 1000 pieces of 10M rebar with a total weight of 6.2 tonnes (1000 x 0.0062 t = 6.2 t).

It is important to know the weight of 10M rebar when planning and designing construction projects to ensure the structural integrity and safety of the building. It is also crucial for transportation and storage purposes as the weight of large quantities of rebar can add significantly to the overall weight of a building material.

In conclusion, the weight of a 10M rebar can vary but is generally around 0.62 kg per meter. It is an essential factor to consider in construction projects and is typically expressed in kilograms or metric tons. Understanding metric mass/weight is vital for the proper use of rebar and other construction materials in civil engineering projects.

## Metric Mass/ weight of 15M rebar

The metric system is the most widely used system of measurement around the world, and it includes units for mass and weight. In the construction industry, specifically in civil engineering, the metric system is used for all calculations and specifications. When it comes to the mass or weight of rebar, which is a critical construction material used for reinforcing concrete structures, the metric system is also used.

The standard unit for measuring mass in the metric system is the kilogram (kg), while the standard unit for measuring weight is the newton (N). However, in everyday use, these two terms are often used interchangeably.

The 15M rebar is a type of steel reinforcement with a diameter of 15 millimeters (mm). It is commonly used in construction projects for its strength and durability. The mass or weight of a 15M rebar can vary depending on its length.

For example, a 15M rebar with a length of 1 meter would weigh approximately 1.48 kilograms. This can be calculated by using the density of steel, which is around 7.85 grams per cubic centimeter (g/cm3). One cubic centimeter of steel would then weigh 7.85 grams. To convert the density from g/cm3 to kg/m3, we need to multiply it by 1,000, which would give us a value of 7,850 kg/m3. To find the mass of the 15M rebar, we then need to multiply the volume (pi x (diameter/2)^2 x length) by the density.

Using the same formula, we can determine the weight of a 15M rebar with different lengths. For example, a 15M rebar with a length of 10 meters would weigh approximately 14.8 kilograms.

It is important to note that the mass or weight of a 15M rebar may also vary slightly depending on the specific composition of the steel used. Some manufacturers may have slightly different densities, which can affect the final weight of the rebar.

In conclusion, the metric system provides a standardized and accurate way of measuring the mass or weight of construction materials such as a 15M rebar. The weight of a 15M rebar can be calculated using the density of steel and the length of the rebar. This information is crucial for civil engineers to ensure the structural safety and stability of concrete structures.

## Metric Mass/ weight of 20M rebar

A rebar, short for reinforcement bar, is a common structural element used in construction. It is a steel bar with ridges on its surface to improve its bonding with concrete. The metric mass or weight of a rebar is a critical factor to consider in structural design and construction.

The most commonly used metric unit of measurement for mass or weight of a rebar is kilograms (kg). In the case of a 20M rebar, the prefix “20” denotes its nominal diameter in millimeters (mm). Therefore, a 20M rebar has a nominal diameter of 20 mm, with a weight of 2.47 kg per meter.

To determine the weight of 20M rebar in different lengths, the following formula is used:

Weight (kg) = (Length (m) x Nominal Diameter (mm) x Nominal Diameter (mm)) / 1000

For example, a 20M rebar with a length of 6 meters would have a weight of:

(6 m x 20 mm x 20 mm) / 1000 = 24.0 kg

Different grades of steel are used to manufacture rebar, with varying strengths and characteristics. The most commonly used grades in construction are Grade 40 and Grade 60. The weight of a 20M rebar may also vary depending on the grade of steel used.

For Grade 40 steel, the weight of a 20M rebar would be slightly less, around 2.36 kg per meter, while for Grade 60 steel, it would be slightly more, around 2.83 kg per meter.

Rebar is typically sold in bundles, with the number of pieces in a bundle varying depending on the diameter and length of the rebar. For instance, a bundle of 20M rebar with a nominal diameter of 20 mm and a length of 12 meters would have a weight of:

(12 m x 20 mm x 20 mm) / 1000 = 48.0 kg per piece x Number of pieces in bundle (7 pieces) = 336 kg

In conclusion, the metric mass or weight of a 20M rebar is 2.47 kg per meter. It is essential to consider the weight of rebar in construction as it affects the overall load-bearing capacity and structural integrity of a building or structure. Proper handling and placement of rebar during construction are also crucial for ensuring its effective use in reinforcing concrete structures.

## Metric Mass/ weight of 25M rebar

The metric system is an internationally recognized system of measurement used by most countries around the world, including engineers. The unit used to measure mass (or weight) in the metric system is the kilogram, with the symbol “kg”. In this system, 1 kilogram is equal to 1000 grams.

As a civil engineer, one of the materials you may work with is reinforced steel, commonly known as rebar. This material is used to provide strength and support to concrete structures, such as buildings, bridges, and roads. Rebar comes in various sizes, with the most common being the 25mm rebar, also known as the 25M rebar.

In the metric system, the mass or weight of the 25M rebar is measured in kilograms (kg). The weight of the 25M rebar can vary depending on its length and density. However, on average, a 25M rebar has a mass of approximately 3.85 kilograms per meter (kg/m). This means that for every meter of 25M rebar used, its weight will be 3.85 kilograms.

To put this into perspective, a standard 6-meter 25M rebar (commonly used in construction) will weigh approximately 23.1 kilograms (6 meters x 3.85 kilograms per meter). This weight can also be converted to other units in the metric system, such as grams (23,100 grams) or tonnes (0.0231 tonnes).

The weight of the 25M rebar is an important factor to consider in construction projects, as it affects the overall load and structural stability of the building or structure. It is necessary for civil engineers to accurately calculate the weight of materials, including rebar, to ensure safety and structural integrity.

In conclusion, the metric mass or weight of a 25M rebar is approximately 3.85 kilograms per meter (kg/m). This measurement is crucial for civil engineers involved in the design, construction, and maintenance of various structures. By using the metric system, engineers can accurately measure and calculate the weight of rebar, ensuring the safety and stability of structures and buildings.

## Metric Mass/ weight of 30M rebar

Metric mass, also known as weight, is a measurement of an object’s mass in the metric system. It is commonly used in civil engineering to calculate the weight of construction materials, such as reinforcing steel bars (rebar).

In the metric system, mass is measured in kilograms (kg) and grams (g). One kilogram is equal to 1000 grams. In civil engineering, rebar is typically measured in kilograms per meter (kg/m).

A 30M rebar refers to a reinforcing steel bar that is 30 meters in length. The letter “M” stands for meters, which is the unit of measurement used for length in the metric system. The weight of a 30M rebar can be calculated by multiplying its length by its mass per unit length.

The weight of a 30M rebar can vary depending on its diameter. The most commonly used diameter for rebar in civil engineering is 12 millimeters (mm). The standard weight of a 12mm rebar is 0.888 kg/m. Therefore, the weight of a 30M 12mm rebar would be:

Weight = Length x Weight per unit length

= 30m x 0.888 kg/m

= 26.64 kg

Similarly, if the diameter of the rebar is 16mm, the weight per unit length would be 1.58 kg/m. Therefore, the weight of a 30M 16mm rebar would be:

Weight = Length x Weight per unit length

= 30m x 1.58 kg/m

= 47.4 kg

It is important for civil engineers to know the weight of construction materials, such as rebar, as it helps in determining the load capacity and structural stability of a building or structure. The weight of rebar is also used in cost estimation and planning for construction projects.

Other factors that can affect the weight of a 30M rebar include the type of steel used and the rib pattern (deformation) on the surface of the rebar. For example, deformed rebar, which has a rib pattern on its surface, is typically heavier than smooth rebar.

In conclusion, the metric mass/weight of a 30M rebar can be calculated by multiplying its length by its weight per unit length. The diameter, type of steel, and rib pattern are some factors that can influence the weight of the rebar. Accurately calculating the weight of construction materials is essential for successful and safe civil engineering projects.

## Metric Mass/ weight of 35M rebar

In the field of civil engineering, rebar is a crucial component in the construction of reinforced concrete structures. It provides additional strength and stability to the concrete by resisting tension forces.

Rebar is manufactured in various sizes, shapes, and materials, and each type has its own specified metric mass or weight. In this article, we will focus on the metric mass/ weight of 35M rebar.

35M rebar is a hot-rolled deformed steel bar with a diameter of 35 millimeters. It has a ribbed surface, which helps to create a strong bond between the rebar and the concrete. The letter “M” stands for “metric”, indicating that the measurement is in the metric system.

The weight of 35M rebar can be calculated using its cross-sectional area and the density of steel. The standard density of steel used in construction is 7850 kilograms per cubic meter (kg/m³). Based on this, the mass of 35M rebar per unit length can be determined as follows:

Mass = Cross-sectional area x Length x Density

The cross-sectional area of a 35M rebar can be calculated using the formula:

Area = π × (diameter/2)²

= 3.14 x (35/2)²

= 962.5 mm²

Therefore, the mass of 35M rebar per meter length is:

Mass = 962.5 mm² x 1 m x 7850 kg/m³

= 7,544,375 grams

= 7,544.375 kg

In simpler terms, the mass of one meter length of 35M rebar is approximately 7.5 kilograms.

It is important to note that the weight of rebar may vary slightly depending on the manufacturer and the quality of steel used. However, the difference is usually negligible and does not significantly affect the structural design.

In conclusion, the metric mass/ weight of 35M rebar is 7.5 kilograms per meter length. Knowing the weight of rebar is essential for civil engineers in the design and construction of reinforced concrete structures to ensure the structural safety and stability of the building.

## Metric Mass/ weight of 45M rebar

Metric mass, also known as weight, is a measurement used in the civil engineering field to determine the amount of materials needed for construction projects. One commonly used material in construction is rebar, which is a steel reinforcement bar used to reinforce concrete structures. Rebar comes in various sizes and weights, including the 45M rebar.

45M rebar is a type of carbon steel reinforcement bar with a nominal weight of 45 kilograms per meter. This means that for every meter of 45M rebar used in a construction project, it will have a mass of 45 kilograms. This measurement is standardized and commonly used in countries that have adopted the metric system.

The weight of 45M rebar is important to consider during the design and construction process. The amount and distribution of rebar used in a project is crucial to ensure the strength and durability of the structure. As a civil engineer, it is essential to carefully calculate the amount of rebar needed and ensure that the appropriate weight of rebar is used to meet the required structural specifications.

The weight of 45M rebar can also have an impact on the transportation of materials to the construction site. For large construction projects, a significant amount of rebar may need to be transported, and the weight of each rebar is a crucial factor in determining the number of trips needed to transport the materials.

Furthermore, the weight of 45M rebar is a vital consideration in terms of safety on the construction site. It is essential to ensure that the weight of the rebar does not exceed the lifting capacity of any crane or equipment used to move and position the rebar.

In addition to its weight, 45M rebar also has a diameter of 12 millimeters, making it suitable for a wide range of applications in construction. It can be used in various concrete structures such as columns, beams, slabs, and foundations.

In conclusion, the metric mass of 45M rebar is an essential factor in the design and construction of various civil engineering projects. As a civil engineer, understanding the weight of 45M rebar and its implications is vital for ensuring the safety and integrity of construction projects.

## Metric Mass/ weight of 55M rebar

Metric mass or weight is a system of measurement used to quantify the amount of matter in an object. In the civil engineering field, it is commonly used to determine the weight of construction materials such as steel reinforcement bars.

In the international system of units, the unit for mass is kilogram (kg). However, in the civil engineering industry, metric ton (t) is the preferred unit for measuring the weight of construction materials due to their large quantities.

One of the commonly used steel reinforcement bars in civil engineering is the 55M rebar. The “M” stands for metric and refers to the nominal mass or weight of the bar in kilograms per meter (kg/m).

The nominal mass of a 55M rebar is 5.55 kg/m. This means that for every meter of the rebar, its weight is 5.55 kilograms. For example, if a project requires a 55M rebar with a length of 10 meters, its total weight would be 10 x 5.55 = 55.5 kg.

It is important to note that the nominal mass of a 55M rebar may slightly vary depending on the manufacturer. In general, however, the mass should be within the range of 5.29 – 5.81 kg/m.

The weight of 55M rebar is an important consideration in construction projects as it affects the structural stability and cost. Too much or too little weight could compromise the integrity of the structure. Therefore, it is crucial for engineers to accurately calculate and specify the required mass of reinforcement bars for a project.

In conclusion, the metric mass/weight of 55M rebar is 5.55 kg/m. This information is essential for engineers and construction professionals in determining the appropriate amount of reinforcement required for a project. Accurate measurement and specification of metric weight ensure the safety and reliability of structures, making it a critical aspect of civil engineering.

## Conclusion

In conclusion, understanding the weight of Canadian rebar is essential for any construction project. The weight of the rebar determines its strength, durability, and suitability for a specific application. As seen in the comparison of weights for 10M, 15M, 20M, 25M, 30M, 35M, 45M, and 55M rebar, the weight increases as the length and diameter of the rebar increase. It is important to select the appropriate weight of rebar for a project to ensure structural integrity and safety. By knowing the weight calculations and the weight differences among various sizes, builders and contractors can make informed decisions and achieve successful construction projects. With the popularity of construction in Canada, knowing

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