Services

PROFILE 1: Physical and mechanical tests on concrete, mortar, building materials and geotechnical works
» Physical-mechanical and physical-chemical materials for concrete, blankets and mortars:

    Physical-mechanical analysis on cement: state of preservation, the determination of setting time and stability, mechanical strength.

» Testing of determination the physical-mechanical and physical-chemical properties of aggregates: density, moisture, leachate parts, grain size analysis by sieving, size curve, water absorption, coefficient of unevenness, the clay content (VA), apparent density, shell elements content, percentage of broken surfaces, shape factor ,apparent density and intergranular porosity, volume goals, antifreeze – thaw resistance, chloride content, humus content.
» Physical-mechanical analysis on concrete:

    Tests on fresh concrete: preliminary tests, samples, temperature, attempt settlement, tests with mass propagation, the apparent density of fresh state.
    Tests on hardened concrete: preparing and preserving specimens, apparent density, compressive strength of specimens, stretching resistance by bending of specimens, the depth of water penetration under pressure.

» Geotechnical and ground foundations

    Our company attempts to perform any type of ground (natural ground , soil, filling material, ballast, crushed stone): determination of moisture, density determination, grounds contractile characteristics, unevenness coefficient , plastic limits , organic materials , size determination by sifting method through sedimentation, determination of the compaction degree to ground, natural filling ground and ballast, ballast pillow and ballast and ground Proctor testing, tests on the ground with Lucas plate.

» Profile for masonry and walls tests : apparent density, water absorption, compression strength, stretching resistance by bending, blocks class, mark determination;

» Profile for plastering and masonry mortar tests : consistency, fresh apparent density, compressive strength, apparent density on hardened mortar;

» Paving elements tests: appearance and size, bending resistance determination ;

PROFILE 2: Destructive and non-destructive tests on metals and fittings
» Physical-mechanical analysis on metals, reinforced concrete and welds:

    Tests on reinforced concrete by : traction, simple bending / unbending, geometrical features, surface condition, according to product standards, testing standards and ST 009 - 2005
    Welds tests:
    Welds on reinforced concrete: breaking limit resistance determination

» Non-destructive tests on metals: metal, sheets, tubes: ultrasonic flaw detection, penetrate liquids, magnetic powder

PROFILE 3: Destructive and non-destructive tests for concrete, building works and building expertise
» Non-destructive inspection and building behavior in exploiting:

    Ultrasonic pulse test method for determining the elastic-dynamic properties of concrete, defects in components or structures , the concrete compressive strength into the work, the homogeneity of concrete into the work , the concrete structure changes under aggressive physical or chemical agents, or under mechanical stress;
    Estimated determination (information relates mainly to the quality of concrete in the first 2-3 cm from surface) of the concrete resistance by surface hardness of the work method with Schmidt concrete test hammer;
    Concrete test by non-destructive combined method for determining the concrete resistance in structures and building elements, determination of the concrete homogeneity as well as the area where improper concrete was cast in construction elements;
    Inspection of material test to determine the hidden defects of the concrete using ultrasound (identify goals, cracks or casting joints, depth of the concrete layer damaged by fire, frost or aggressive actions, segregation cavity or macro porous concrete );
    Parameters determination of reinforcement of the reinforced concrete elements by pachometrie - electromagnetic method (direction, coating, diameter).
    Determination of concrete and masonry characteristics by tests on core
    The method is recommended when test results are below the provided norms, when there are doubts about the quality of concrete work, for buildings subjected to physical or chemical actions that lead to degradation of concrete, to increase the accuracy of destructive tests for determination of concrete strength in the work.

PROFILE 4: Quality asphalt mixtures, materials and road works tests

» Testing materials for roads: softening point, a.c. penetration of bitumen, thin film stability, adhesion bitumen emulsions towards natural aggregates, moisture, granularity, hydrophilic coefficient, apparent density .

» Testing for natural aggregates for railway works and roads: Content of fractions less than 0.1 mm, fractions containing less than0.2 mm, sand equivalent ,activity coefficient of crushed sand, break ink resistance / wear .

» Testing for profile road: aggregate tests : the content of foreign objects and organic materials ,content of spoiled grain, soft, friable, porous and vacuolar; tests on asphalt mixtures taken from the station or from the placement, as well as by extracting cores from the work: water content, apparent density of asphalt mixtures, water absorption of the asphalt mixtures, the stability and creep of the asphalt mixtures, the composition of asphalt mixtures by centrifugal method and the method with Soxhlet apparatus , volume of goals, compressive strength, etc..