ELE
Cement Testing
1-FinenessThe fineness of cement is a property, which must be
carefully controlled during the manufacturing process.
The total specific surface of the cement represents the
surface area available for hydration. Various methods are
in use to measure the specific surface of cements.
For most purposes air permeability methods produce
accurate, repeatable results.
- Determination of Fineness Blaine Apparatus
EN196-6, BS 4359-2, ASTM C204
This method has been adopted in Europe as the definitive
means of determining the fineness of cement and other
‘powder’ materials.
The system is supplied complete with stainless steel cell,
perforated disc and plunger, manometer U-tube, aspirator,
bottle of manometer liquid and a box of filter papers.
Blaine Air Permeability Apparatus
Weight 2.8 kg
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-Specific Gravity (relative density)
of Hydraulic Cement
ASTM C188;AASHTO T133
It is necessary to know the specific gravity of cement for
various reasons related to its quality and use. In par ticular it will
be necessary to determine the specific gravity as par t of the
determination of the specific surface of a cement.
Le Chatelier Flask
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2-Consistence Setting Time, Workability and Flow
Determination of setting time and soundness of cement
requires the use of a neat cement paste of standard
consistence.The Vicat method is usually specified as the
test used to determine the water content which will produce the desired consistence.
The consistence of fresh mortars, lime and masonry cements is
determined by a Plunger Penetration Method.
Vicat Method
EN196-3; ASTM C187, C191
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3-Mixing
The results of strength testing of cement and other
materials such as Lime and Fly Ash are dependent on the
method and the quality of equipment used. A standard
system for strength testing is based on compressive strength of mortar prisms.
Automatic/Manual 5 litre nominal
capacity Mortar Mixer
EN 196-1, 413-2, 459-2; BS 3892; ISO 679
- Microprocessor control
- Choice of automatic mixing cycles
- Sand and water dispenser options
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4-Moulding
The successful preparation and moulding of prisms, cubes
and briquettes is essential if subsequent strength tests on
the specimens are to be meaningful. Moulds should be
manufactured from material which is capable of
retaining its form under heavy usage.The equipment
detailed in this section has been designed and
manufactured to meet the requirements for moulding laid
down in the various standards.
Moulding of 40 mm,
50 mm and 100 mm Specimens
BS 1881-131; ASTM C109
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5-ADR-Auto 250 Compression Machine BS 3892; ASTM C109; AS 2350; EN 196 - 250 kN maximum capacity - Calibration accuracy to BS EN ISO 7500-1; ASTM E4 - Automatic loading cycle - Optional 25 kN low capacity frame - Tests a wide variety of specimen sizes - Tests mortar, lime, cement and Fly Ash ADR-Auto 250/25 Cement Machine c/w Compression and Flexural Jigs, 40mm 50mm/2" Platen Sets. For use on 220-240V 50Hz 1ph.
For more technical specification and quotation, please contact us