Reinforcing Steel Bars

タイトルまたは説明

REINFORCING STEEL BARS

Reinforcement is used to manufacture solid metalobetonnyh designs and products.

There are several types of valves. Classification produced according to GOST and accepted standards of Ukraine (State Standard), provides the following classes: A-I (A**0), A-II (A**0), A-III (A**0), A-IV (A**0), AV (A**0), A-VI (A***0).

Among the buyers of the most popular reinforcing steel in periodic profile and reinforcing steel is smooth. These species are different from each other by their characteristics. Thus, reinforcing steel is a plain round bar having a perfectly smooth surface. Less surface such that there is no corrugation to improve adhesion to the concrete.

In turn, reinforcing steel in periodic profile is precisely characterized by ribs (transverse ridges), which serve to improve the adhesion to the concrete. Situated corrugations on the surface of the rod at an angle to the longitudinal axis.

In the above regulatory standards apply the following terminology:

    * Clas durability - the normalized value of the physical or the same proof strength steel, which is set an exceptional standard
    * The angle of inclination of transverse ridges - this is the angle lying between the longitudinal axis of the rod and grooving on it
    Step transverse ridges - measured parallel to the longitudinal axis of the rod distance between the centers of two fluting that runs next to each other.
    * Height of transverse ridges - as measured at right angles to the longitudinal axis of the rod length from the highest point of the fluting to the surface of the core rod
    * Nominal diameter of reinforcing steel periodic profile (the profile) - the diameter of an equivalent cross-sectional area of a smooth round rod
    * Nominal cross-sectional area - this area, the equivalent cross-sectional area of a smooth round bar having a diameter similar parameters

In the table below lodged normatury line parameters depending of type of type of products (GOST)

Sizes: OO 5.***8 mm
Packing: 
– O ****8 mm – in bundles with the weight of up to 5 t, length of up to*2,**0 mm (***0 mm); 
– O 5.5–*4.0 mm – in coils with the weight of 1,**0–2,**0 kg. 
The coil height is up to 1,**0 mm; outer diameter – 1,**0 mm; inner diameter – **0 mm. 
Binding with wire rods diam. 5.5–7.0 mm: 4 radial and 1 transversal. 
– O 6,5; O 8,0 mm – in coils with the weight of up to **0 kg. 
Coil dimensions: height is up to **0 mm; outer diameter – 1,**0–1,**0 mm; inber diameter – **0–**0 mm. Binding in two places.