General Description

This method, very popular in Scandinavia, is used for mix design and quality control mainly in concrete products plants, where low workable and zero s...
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Description

This method, very popular in Scandinavia, is used for mix design and quality control mainly in concrete products plants, where low workable and zero slump concrete is used (for such products as hollow-core slabs, tubes and paving blocks).
The method is used for: mix design simulating selected production processes specimen preparation for strength test (fresh and cured) research of mix related phenomena (workability, curing time, admixtures etc.).

Compaction is achieved by the simultaneous application of a low-static compression and a shearing action, which results in the motion of the centre-line of the test piece, which generates a conical surface of revolution while the ends of the test piece remain approximately perpendicular to the axis of the conical surface.

The machine is equipped with 100 mm diameter mould with stripping accessory and process­es in real time the evolution of sample density versus the number of cycles and plots the compaction curve.

It's possible to upgrade the machine in order to measure the Shear during compaction in kN/ m2. Shear is a measuring parame­ter useful for a deeper selection/ dosage and tuning of no-slump concrete components. For in­stance, a very small change in water and plasticizer can shift no­tably the positioning of max shear value along the compaction curve. Increase of water and plasticizer generally shift the max shear val­ue toward the first gyratory cycles; instead the decrease of water and plasticizer shift the max shear to­ward the end of compaction.
 

Products

Code
Description
Units

Technical Specifications

Model Galileo 54-C20C02
Consolidation pressure 25 – 2200 kPa for 100 mm diam.
Gyratory motion and Vertical load Electromechanical
Angle adjustment Manual
Gyratory angle range 0 -3° ±0.01
Gyratory angle measurement Angle measured and displayed during test
Speed of gyration 5 – 120 rpm
Number of gyrations 0 -9999
Integrated Shear measurement Yes (optional)
Moulds dimensions dia. 100 mm x 250 mm height
User interface 7” 16:9 Touch screen color display (PC for data analysis)
Connection LAN - Ethernet
PC Software Available as option
Extruder Hand-operated
Balance Available as option with an accuracy of 1 g 
Minimum specimen height 50 mm
Maximum specimen height Up to 200 mm depending on mix type
Height accuracy Better than 0,1 mm
Suitable for water pouring test Yes
Dimensions  (w x d x h) 480 x 900 x 2150 mm
Weight approx. 400 kg

 

Standards

  • NT Build 427

Accessories and Spare Parts

Code
Description
Units