Laboratory Activities and Equipment
Our mission is to apply high professionalism in our work, meet client requirements, and deliver services reliably and competently while adhering to all technical and legal regulations.
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OUR NETWORK
Laboratory Locations
Sofia Laboratory
Pleven Laboratory
Mobile Laboratory
Fully equipped mobile testing unit for on-site assessment and analysis.
LEADING SERVICES
Accredited Testing Services
Asphalt Mixtures:
- Particle size distribution (Sieve analysis)
- Soluble binder content
- Bulk density
- Maximum density
- Air void content
- Marshall stability
- Marshall flow
- Indirect tensile strength
- Water sensitivity
- Temperature measurement
- Binder drainage
Compacted Layers:
- Bulk density of core samples
- Relative comparative density
- Degree of compaction
- Layer thickness
Paving & Polymer Bitumen:
- Needle penetration
- Softening point (Ring and Ball)
- Density
- Elastic recovery
- Storage stability
Aggregates:
- Particle size distribution
- Sand equivalent
- Flakiness index
- Shape index
- Crushed and broken surfaces content
- Resistance to fragmentation (Los Angeles)
- Soundness (Magnesium Sulfate test)
- Particle density and water absorption
- Resistance to wear (Micro-Deval)
- Proctor test and Plate load test
- Sand replacement method
- Static load resistance
Filler Aggregates:
- Methylene blue value
- Particle size distribution and fineness
- Water content
- Particle density
Anchors:
- Load-bearing capacity (displacement/elongation)
Cement Stabilization:
- Compressive strength
- Setting/Placement time
Concrete & Shotcrete:
- Slump and density
- Compressive strength of young shotcrete
Construction Soils:
- Particle size distribution and water content
- Liquid and plastic limits
- Plasticity index
- Proctor test (max bulk density)
- CBR (California Bearing Ratio)
- Sand replacement
- Plate load test (moduli)
- Compressive properties (deformation)
Concrete:
- Compressive strength
- Tensile strength
- Density
Road Pavement:
- Benkelman beam (bearing capacity, deflection)
- Longitudinal irregularities
- Macrotexture depth
Waterproofing:
- Bond strength (Adhesion)
DOCUMENTATION
Resources and Legal Information
Scope of Laboratory Activities
Download here (PDF)Methods Applied in Laboratory Activities
Download here (PDF)Declaration of Impartiality and Independence
Download here (PDF)Independent Construction Laboratory Policy
Download here (PDF)Complaint Procedure
Download here (DOCX/PDF)
PORTFOLIO
Our Projects
Closure and Reclamation of Old Landfill – Stara Zagora
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Construction of "Luda Yana" Dam and Water Treatment Plant
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Expansion of Gas Transmission Infrastructure to the Border
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Reconstruction of Tram Tracks on "Tsar Boris III" Blvd
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Rehabilitation of "Bulgaria" Boulevard – Sofia
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Modernization of Railway Tracks and Catenary – Plovdiv Station
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CONTACT