Determine the weight of the valve - the table on section bar and order of evaluation

concrete or cement-sand mixtures are used in virtually all types of work related to the field of restoration, construction or repair.As a rule, any "filling" in the form made after the pre-installation (laying) of the reinforcing structure.Most often it is constructed of a metal rod.

Why do I need to know the weight of fixtures

• At arrangement of overlapping or elements having support - to determine the maximum additional load which will create bars.This will help determine the feasibility of its use, or the need to replace the analogue (mesh metal or plastic).
• To properly assess the quality of the reinforcement (share of metal content in the concrete).
• to select the mode of transport when transporting the material to the point of use.
• to the provisional estimates of works at the stage of designing and finding intelligent ways to save.

used rods with diameters from 6 mm to 16 mm in the private sector.Thicker samples - this is the sphere of industrial use.All relevant data are given in the table.

it should be understood that these numerical indicators only approximate, but it is sufficient to preliminary calculations.They do not take into account the steel grade (class bar).But such nuances needed designers and they have a special calculation tables.In addition, the distinction is made between theoretical and actual weight.The difference values ​​may range from a fraction of up to 3%.

If the hand is not a PC or reference books, you can determine the approximate weight of all bars using a conventional tape measure and pencil.Here's how:

• D (or R2) is multiplied by 3.14 (the constant value) and the total length of all the samples.
• = total mass of material (volume) x (specific gravity).

As you can see, nothing complicated in the calculations do not.Of course, this applies only to the metal fittings, not composite.