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Description
Equipment formed by two servohydraulic testing machines provided with
computerized systems of function generation, control and data acquisition.
Technical characteristics
- Two hydraulic groups with capacity to provide an oil flow of 32 and 56
litres per minute respectively, at a pressure of 210 bars.
- Load frames with nominal capacity of + 100 kN.
- Two hydraulic actuators with static and dynamic load capacity of +
25 kN and + 100 kN respectively.
- Computerized function generators allowing to create any kind of function
composed by rectilinear segments or waves with frecuencies up to 100 Hz.
- Data acquisition computer with 16 conversion channels of 12 bits.
Applications
Dynamic testing on samples and cores of bituminous and cement-bound
materials.
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Set of equipment used for charaterizing and testing granular materials. The
most important pieces of equipment are:
- Equipment for accelerated polishing test.
- Equipment for Los Angeles test.
- Equipment for the friability test (Micro-Deval equipment).
- Equipment for study of the presence of harmful components.
- Equipment for study of water sensibility.
- Autoclave for study of alteration in presence of water.
- Equipment for sulphates solutions resistance test.
- Equipment for determination of voids content, activity coefficient and
emulsionability of filler.
- Equipment for determination of the activity of aggregates and hydrocarbon
binders.
- Crushers, manual and automatic screen tenders and other laboratory
material.
- KANGO vibratory compactor, on a frame that assures the verticality, and a
static load over sample of 300 N.
- Constant speed press, with load capacity of 10.000 kg, for the CBR test.
- Equipment for the plate-bearing test.
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The laboratory has a number of equipments corresponding to the following
classification:
Equipment for the conventional characterisation of bituminous
binders:
Description
Number of materials and equipments for sample acquisition and performance of
tests taken from the specifications for bituminous binders for roads (asphaltic
bitumen, modified bitumen, emulsion, cut-back bitumen). Besides the measuring
equipments, the laboratory has the necessary accessories for the preparation of
samples and laboratory tests, chemical products and solvents, apart from the
equipments for normal use in a laboratory (balances, water baths, ovens, stills,
vacuum pumps, etc.) and glass, porcelain and metal tools (flasks, glasses,
pycnometers, etc.).
Technical characteristics
All the equipment and accessories in this laboratory fulfil the required
specifications in the NLT norm for each test. The measurement ranks and accuracy
are equal, and in some cases higher than the ones from the norm.
Applications
Conventional characterisation of hydrocarbon binders for application on
roads: asphaltic bitumen, modified bitumen, emulsion, cut-back and fluxed
bitumen, tar, natural asphalts, etc.
Equipment
Equipment for dosage and characterisation of bituminous
mixtures:
Description
Number of materials and equipment for sample acquisition and performance of
tests taken from the specifications for bituminous mixtures.
Technical characteristics
All the equipment and accessories in this laboratory fulfil the required
specifications in the NLT norm for each test. The measurement ranks and accuracy
are equal, and in some cases higher than the ones from the norm.
Applications
Design, dosage, characterisationcharacterisation and control of bituminous
mixtures.
Equipment
Equipment for dosage and characterisation of thin layers and
surface dressing:
Description
Number of materials, accessories and tools for sample acquisition and
performance of tests taken from the specifications for thin layers and surface
dressing.
Technical characteristics
Most equipments in this laboratory are described in the NLT norm and fulfil
the specifications of design, rank of measure and accuracy specified in the
norm.
Applications
Design, dosage, characterisation in laboratory and at works of thin layers
and surface dressings.
Equipment
- Vertical axle mixer.
- Slurry seal consistency equipment.
- Wet track abrasion equipment for slurry seals.
- Cone penetrometer for slurry seals.
- Portable 12 V. Cohesion Tester equipment.
- Wet-wheel tracking tester for slurry seals.
- Vialit adhesiveness equipment.
- Mixing, testing and water resistance equipment.
- TRRL pendulum for skid resistance.
- Sand volumetric equipment.
- Other usual laboratory instruments.
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Facility for testing concretes and other cement-bound materials. The most
important pieces of equipment are:
- Gyratory mixer of 15 litres.
- Automatic impact compactor.
- KANGO vibratory compactor.
- Moist chamber for the conservation and curing of samples.
- Chamber of accelerated curing.
- Adiabatic calorimeter.
- Equipment for determination of the thermal expansion coefficient and
shrinkage of cement-bound materials.
- Equipment for the characterisation of the activity and aging of slags.
- Vebe equipment for the consistency determination.
- Servocontroled press for compressive tests.
- Servocontroled dynamic press for dynamic tensile tests.
- Equipment for detecting dowels and tie bars in concrete pavements.
- Mortar consistometer.
- Horizontal automatic compactor.
- FLEXO-1000 Press.
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