Controls Group http://www.controls-group.com/images/logo_controls.gif High stiffness flexural frame, 350 kN cap., DUPLEX High stiffness flexural frame, 350 kN cap., DUPLEX
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Concrete

High stiffness flexural frame, 350 kN cap., DUPLEX

EN 1339 | EN 1340 | EN 12390-5 | ASTM C78 | ASTM C293 | ASTM C1550 | EN 14488-5 | ASTM C1609 | ASTM C1018
Main features
  • High rigidity (200 kN/mm), especially suitable for testing FRC and sprayed concrete
  • Double testing mode: parallel and orthogonal 
  • For testing different kind of specimens (beams, flagstones, slab)
  • Suitable for testing Round panel dia.800 mm to ASTM C1550
  • Max span between lower rollers: 1.5m
  • Load measurement by high precision load cell 
  • Piston return by counterweights
  • Piston travel limit switch included
General description
General description
This high stiffness flexural frame has been designed to have a double testing mode: parallel and orthogonal.

Parallel mode is meant to be used for displacement controlled testing on advanced construction materials, e.g. fiber reinforced concrete (FRC) and sprayed concrete.
These tests are significantly affected by the actual frame stiffness therefore the relevant international Standards state stiffness limits which are exceeded by this new model (better than 200 kN/mm).
This remarkable result comes from the frame sections but it is also derived from the particular layout which keeps the specimen aligned with the frame crossbeams maximizing structural rigidity.

Orthogonal mode is meant to be used to test long specimens having more than 880mm length.

The horizontal daylight accommodates large specimens (slab, flagstones), concrete beams and kerbs long up to 880 mm.

The frame is fitted with high precision load cell (recommended for FRC testing), with piston travel limit switch and connection kit to the control console. Bearers not included. See accessories.
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Technical specifications

Models 50-C1701/FR
DUPLEX
Max cap. kN 350
Load sensor Load cell
Horizontal clearance [mm] 900
Max. vertical clearance [mm]* with 50-C1700/1  260
with 50-C1500/2 180
with 50-C1500/2 + 50-C1500/3 245
with 50-C1500/2 + 50-C1700/4 215
with 50-C1500/6 165
with 50-C1500/7 405
with 50-C1700/7 100
Distance between upper rollers (adjustable) mm From 100 to 500, or single roller
Distance between lower rollers - Parallel testing mode (adjustable) mm From 150 to 800
Distance between lower rollers - Orthogonal testing mode (adjustable) mm From 850 to 1500
Piston travel mm 130
Overall dimensions (lxwxh) mm  1150x 1600 x 1550
Weight approx. kg  520

* The vertical daylight can be reduced by using the distance pieces already included useful to reduce the daylight by: 50mm, 100mm and 150mm. Additional distance pieces are available as Accessories. 

Ordering info

50-C1701/FR
DUPLEX - 350 kN cap. high rigidity flexural frame, complete with load cell and connection kit for separate control console. Rollers not included. Includes set of spacers to reduce the vertical daylight by: 50mm, 100mm and 150mm             
 

Accessories

50-C1700/1
Upper and lower rollers for centre and third point test of concrete beams up to 300mm height, conforming to EN 12390-5 and ASTM C78, C1609, C1018, EN 14488-3, EN 14651.
Bearers dimensions: 30 mm dia. x 310 mm long
Weight approx: 40 kg

50-C1500/2
Set of one upper and two lower roller assembly for testing paving flags, conforming to EN 1339
Bearers dimensions: 40 mm dia. x 620 mm long
Weight approx: 45 kg

50-C1500/3
Swivel jointed loading pad for testing kerbs, conforming to EN 1340. To be used with support bearers of 50-C1500/2.
Weight approx: 5 kg
  
50-C1700/4  
Upper loading rollers to perform the third point and centre point flexure test to EN 12390-5, including two rollers 310 mm long, 40 mm diameter. To be used with support bearers of 50-C1500/2
Weight approx.: 23 kg

50-C1500/5  
Auxiliary testing frame for the measurement of deflection of FRC beams to EN 14488-3, 14651, ASTM C1609.

50-C1500/6
Accessory for testing sprayed concrete slab to EN 14488-5. Including supporting square base and spherically seated loading element. To be completed with displacement transducers 50-C1500/9 and 50-C1500/8. 
Weight approx: 100 kg

50-C1700/7
Accessory for testing FRC concrete round slab to ASTM C1550. Including 3-points supporting base and spherically seated loading element. To be completed with displacement transducers 50-C1500/9 and 50-C1500/8. 
Weight approx: 100 kg
 
50-C1500/7
Set of lower platen and upper platen spherically seated, 165 mm dia., for compression tests on small and low strength specimens.
Weight approx:  19 kg

50-C1500/8
Displacement transducer with 50mm travel for reading displacement of sprayed concrete slab centre under concentrated load.

50-C1500/9 
100mm displacement transducer for measuring the piston travel. Complete with attachments.
Weight approx: 1 kg

50-C1500/50
Distance piece 50mm thickness for flexure frame    

50-C1500/80
Distance piece 80mm thickness for flexure frame    


Additional Information

TEST SETS

Energy absorption test on slabs
50-C1701/FR  Frame 350 kN cap.
50-C1500/9 100mm piston travel displacement transducer 

to ASTM C1550
50-C1700/7 accessory for FRC round, slabs, 800 mm dia. x 75 mm thick
50-C1500/8 50 mm central slab deflection displacement transducer

to EN 14488-5
50-C1500/6 Accessory for testing sprayed concrete slab 600 x 600 x 100 mm to EN 14488-5. Including supporting square base and spherically seated loading element. 
50-C1500/8 50 mm central slab deflection displacement transducer 

Measurement of beam deflection and thougness
50-C1701/FR Frame 350 kN cap.
50-C1700/1 Set of 2 supports and 2 loading rollers dia.30x310mm
50-C1500/5  Auxiliary testing frame for the measurement of deflection of beams
82-P0331/C  High accuracy displacement transducer 10mm travel (2 PCS needed)
82-P0331/2   Electric mean device for displacement transducer 82-P0331/C
Note: not required for Automax Multitest control console

Displacement transducer for measurement of crack opening
50-C1711/FR  Frame 350 kN cap.
50-C1700/1 Set of 2 supports and 2 loading rollers dia.30x310mm
82-P0331/E High precision displacement transducer to measure Crack Tip Opening Displacement (CTOD) and Crack Mouth Opening Displacement (CMOD)





Upgrading

(To be specified at time of order: these items has to be factory installed.)

Special calibration procedure
The above upgrading is suitable if the frame is connected to automatic testing machines or control consoles.

50-C0050/CAL 
Special calibration of compression testers assuring Class 1 (EN) and Class A (ASTM), from 1% to full load range. Suitable for models fitted with load cell.

50-C0050/CAL5 
Special calibration of compression testers assuring Class 1 (EN) and Class A (ASTM), from 5% to full load range.  Suitable for models fitted with pressure transducer.


Traceable certificate of surface hardness
50-L0050/HRD
Supply of the compression deice model 50-C1500/7 complete with traceable certificate of hardness of 165 mm dia. platen surfaces

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