Steel Spacers For Top Reinforcement

It happens often that a reinforced concrete component has the reinforcement bars running in two layers - a top layer and a bottom layer. In order to ensure proper spacing between the reinforcement layers, steel spacers having the shape of the letter Z are used. This ensures inherent stability of this separation, which in turn simplifies laying the reinforcement bars in the top component layer. Considering the loads transferred, the Zet spacers are manufactured in two types: Zet 1 with a usable load of 0,47 kN/r. m., and Zet 2 with a usable load of 0,67 kN / r. m.


Spacing the reinforcement bars in the top layer of a reinforced concrete component using a Zet spacer

 

Zet steel line spacer

Zet steel line spacer
Symbol
Height
[mm]

Package
bunch/pallet  

[szt.]
Sales unit Weight
[kg/pcs.]
Art. no.
ZET-S 1-5/240
50
25/1000
bunch 0,180
PA-PD-ST-0-07084
ZET-S 2-5/240
50
25/1000
bunch 0,192
PA-PD-ST-0-07085
ZET-S 1-6/240
60
25/1000
bunch 0,182
PA-PD-ST-0-07086
ZET-S 2-6/240
60
25/1000
bunch 0,196
PA-PD-ST-0-07087
ZET-S 1-7/240
70
25/1000
bunch 0,187
PA-PD-ST-0-07088
ZET-S 2-7/240
70
25/1000
bunch 0,204
PA-PD-ST-0-07089
ZET-S 1-8/240
80
25/1000
bunch 0,192
PA-PD-ST-0-07090
ZET-S 2-8/240
80
25/1000
bunch 0,212
PA-PD-ST-0-07091
ZET-S 1-9/240
90
25/1000
bunch 0,197
PA-PD-ST-0-07092
ZET-S 2-9/240
90
25/1000
bunch 0,219
PA-PD-ST-0-07093
ZET-S 1-10/240
100
25/500
bunch 0,202
PA-PD-ST-0-07094
ZET-S 2-10/240
100
25/500
bunch 0,227
PA-PD-ST-0-07095
ZET-S 1-11/240
110
25/500
bunch 0,207
PA-PD-ST-0-07096
ZET-S 2-11/240
110
25/500
bunch 0,235
PA-PD-ST-0-07097
ZET-S 1-12/240
120
25/500
bunch 0,213
PA-PD-ST-0-07098
ZET-S 2-12/240
120
25/500
bunch 0,242
PA-PD-ST-0-07099
ZET-S 1-13/240
130
25/500
bunch 0,218
PA-PD-ST-0-07100
ZET-S 2-13/240
130
25/500
bunch 0,250
PA-PD-ST-0-07101
ZET-S 1-14/240
140
25/500
bunch 0,223
PA-PD-ST-0-07108
ZET-S 2-14/24
140
25/500
bunch 0,257
PA-PD-ST-0-07109
ZET-S 1-15/240
150
25/500
bunch 0,228
PA-PD-ST-0-07110
ZET-S 2-15/240
150
25/500
bunch 0,265
PA-PD-ST-0-07111
ZET-S 1-16/240
160
25/500
bunch 0,233
PA-PD-ST-0-07112
ZET-S 2-16/240
160
25/500
bunch 0,273
PA-PD-ST-0-07113
ZET-S 1-17/240
170
25/500
bunch 0,238
PA-PD-ST-0-07114
ZET-S 2-17/240
170
25/500
bunch 0,281
PA-PD-ST-0-07115
ZET-S 1-18/240
180
25/500
bunch 0,243
PA-PD-ST-0-07116
ZET-S 2-18/240
180
25/500
bunch 0,288
PA-PD-ST-0-07117
ZET-S 1-19/240
190
25/500
bunch 0,249
PA-PD-ST-0-07118
ZET-S 2-19/240
190
25/500
bunch 0,296
PA-PD-ST-0-07119
ZET-S 1-20/240
200
25/500
bunch 0,254
PA-PD-ST-0-07120
ZET-S 2-20/240
200
25/500
bunch 0,304
PA-PD-ST-0-07121
ZET-S 1-21/240
210
25/500
bunch 0,272
PA-PD-ST-0-07122
ZET-S 2-21/240
210
25/500
bunch 0,311
PA-PD-ST-0-07123
ZET-S 1-22/240
220
25/300
bunch 0,278
PA-PD-ST-0-07124
ZET-S 2-22/240
220
25/300
bunch 0,319
PA-PD-ST-0-07125
ZET-S 1-23/240
230
25/300
bunch 0,284
PA-PD-ST-0-07126
ZET-S 2-23/240
230
25/300
bunch 0,327
PA-PD-ST-0-07127
ZET-S 1-24/240
240
25/300
bunch 0,289
PA-PD-ST-0-07128
ZET-S 2-24/240
240
25/300
bunch 0,335
PA-PD-ST-0-07129
ZET-S 1-25/240
250
25/300
bunch 0,295
PA-PD-ST-0-07130
ZET-S 2-25/240
250
25/300
bunch 0,342
PA-PD-ST-0-07131
ZET-S 1-26/240
260
25/300
bunch 0,317
PA-PD-ST-0-07132
ZET-S 2-26/240
260
25/300
bunch 0,350
PA-PD-ST-0-07133
ZET-S 1-27/240
270
25/300
bunch 0,324
PA-PD-ST-0-07134
ZET-S 2-27/240
270
25/300
bunch 0,357
PA-PD-ST-0-07135
ZET-S 1-28/240
280
25/300
bunch 0,330
PA-PD-ST-0-07136
ZET-S 2-28/240
280
25/300
bunch 0,365
PA-PD-ST-0-07137
ZET-S 1-29/240
290
25/300
bunch 0,336
PA-PD-ST-0-07138
ZET-S 2-29/240
290
25/300
bunch 0,373
PA-PD-ST-0-07139
ZET-S 1-30/240
300
25/300
bunch 0,343
PA-PD-ST-0-07140
ZET-S 2-30/240
300
25/300
bunch 0,381
PA-PD-ST-0-07141

 

The ZET spacer is a stable spacer made of cold-ribbed steel (type FE37+B per standard PN-EN 10016-3:1999) with a diameter of vertical and horizontal bars of Φ=3,5 mm. The vertical bar spacing depends on the spacer type, and is 150 mm for ZET-S 1 and 100 mm for ZET-S 2. The Zet spacer serves the purpose of separating the top reinforcement bar layer, and allows one to obtain the assumed space between the bottom and top reinforcement layer.

Available lengthwise bar lengths L = 2400 mm, after shaping the entire spacer structure has a length L = 2000 mm.

 

 

Height-adjustable spacer


 

Height-adjustable spacer
Name
Weight [kg]
Sales unit
Art. no.
Height-adjustable spacer
0,2
pcs.
PA-PD-ST-0-01 156

 

A height-adjustable spacer is a component foreseen to ensure proper spacing between the top and the bottom reinforcement bar layer. Determining a proper spacing is possible by using a threaded screw.

 

 

 

 

 

 

The component can be affixed to the bottom reinforcement bar layer by welding or tying with tie wire. Adjusting the distance between the reinforcement layers takes place by deflecting the top layer and twisting the thread (screw) to the left or right to an appropriate height. Then, the top reinforcement layer is set on a support. If the appropriately required cover is not adhered to, the thread of the height-adjustable spacer must be shortened.