Prestressing strand

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Specifications

Packaging and labeling

Application

They are used as prestressed reinforcement of prestressed reinforced concrete structures.

Stabilized reinforcing strands have a number of advantages over those manufactured using tempered technology: an increase in the yield strength and tensile strength by 10-15%; increase in elastic limit by 25-30%; reduction of stress losses during relaxation by 5-8%; increasing the reliability and durability of the structure.

It is possible to manufacture ropes both of round wires and of wires with a periodic profile.

Characteristics

Specifications

 

Profile parameters

Nominal diameter of a rope, mm d	Denting depth, mm h	Dentinglengths, mm l	Denting pitch, mm c
≤ 12,0	0,06 ± 0,03	3,5 ± 0,5	5,5 ± 0,5
> 12,0	0,07 ± 0,03

Nominal diameter of a rope, mm	Nominal area of a rope cross section, mm2	Nominal weight of a running meter, g	Fracture strength, not less than	Minimal breaking force
6,9	29,0	226,5	1770	51
			1860	53
			2060	59
			2160	62
9,0	50,0	390,5	1770	88
			1860	93
			1960	98
9,3	52,0	406,1	1770	92
			1860	96
			1960	102
9,6	55,0	429,6	1770	97
			1860	102
11,0	71,8	660,9	1770	127
			1860	133
12,5	93,0	726,3	1770	165
			1860	173
12,7	98,7	775,0	1770	175
			1860	184
(12,7)	112,0	874,7	1860	208
12,9	100,0	781,0	1770	177
			1860	186
15,2	139,0	1086,0	1670	232
			1770	246
			1860	259
(15,2)	165,0	1289,0	1820	300
			1860	307
15,7	150,0	1172,0	1770	266
			1860	279

(12.7) — this standard size of the prestressing strand is made with a compression. Reinforcing strands with compression have increased structural density, high breaking force.

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