High Stiffness Flexural Frame, 350 kN Cap., DUPLEX

High stiffness flexural frame designed for displacement controlled testing on advanced construction materials such as Fiber Reinforced Concrete (FRC) and sprayed concrete. This frame is suitable for testing various kinds of specimens (beams, flagstones, slab).

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Highlights
Features
Specifications
Models
Accessories
Standards

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 (set at 200 kN/mm by the relevant international Standards). Our model exceeds the Standards requirement with its 350 kN/mm capacity thanks to its specific layout which keeps the specimen aligned with the frame crossbeams, making most of its structural rigidity.

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. Please see accessories.

Bearers not included. Please see accessories.

Frames includes two rulers, two additional rulers are available on request. Rulers with graduations in inches are available on request.

High rigidity (350 kN/mm), especially suitable for testing FRC and sprayed concrete
Double testing mode: parallel and orthogonal
For testing different kinds 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

Model	DUPLEX 50-C1701/FR
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 200, or single roller
Distance between lower rollers — Parallel testing mode (adjustable) mm	From 100 to 200, or single roller
Distance between lower rollers — Orthogonal testing mode (adjustable) mm	From 150 to 800
Piston travel mm	130
Overall dimensions (lxwxh) mm	1,150 x 600 x 1,550
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.

Code

Description

50-C1701/FR

DUPLEX - Parallel and orthogonal testing mode - High stiffness 350 kN cap. flexure frame with loadcell and connection kit for separate control console. Upper and lower rollers not included.

Code

Description

Displacement transducers

50-C1500/8

LDT displacement transducer for 50-C15xx/FR and 50-C17xx/FR flexure frames, 50mm travel, for underneath displacement measurement of sprayed concrete slab.

50-C1500/9

100mm LDT displacement transducer for 50-C15xx/FR and 50-C17xx/FR flexure frames for measuring piston travel. Complete with mounting adaptors

50-C1700/8

Displacement transducer for FRC slab central deflection, 60 mm travel

Miscellaneous Accessories

50-C1500/2

Set including 2 bearers and 1 loading roller 50-C15xx/FR and 50-C17xx/FR flexure frames for flagstones (paving slab) testing to EN 1339. Roller dimensions: 40 mm dia x 620 mm.

50-C1500/3

Upper loading swivel joint 40 mm dia for 50-C15xx/FR and 50-C17xx/FR flexure frames for kerbs stones testing to EN 1340. Lower bearers notincluded. It shall be used in combination with accessory 50-C1500/2.

50-C1500/6

Accessory for 50-C15xx/FR and 50-C17xx/FR flexure frames for testing concrete slab to EN 14488-5. Including supporting square frame and spherically seated loading element. To be completed with displacement transducers 50-C1500/9 and 50-C1500/8.

50-C1700/7

Accessory for flexure frames 50-C17xx/FR and 50-C1601/FR for testing sprayed concrete slab to ASTM C1550. Includes: 3-points supporting base and spherically seated loading element.

Platens

50-C1500/7

Set of spherically seated 165 mm dia. lower and upper platens for 50-C15xx/FR and 50-C17xx/FR flexure frames for compression test.

Rollers

50-C1700/1

Upper and lower roller assembly for 50-C1701/FR flexure frame for centre and third point testing of concrete beams up to h. 250mm, conforming to EN12390-5, ASTM C78, C293, C1018, EN 14651. Roller dimensions: 30 mm dia. x 310 mm long

50-C1700/4

Upper loading rollers for third and center point flexure test, including two loading rollers 310 mm x 40 mm dia. To be used with support bearers of 50-C1500/2.