Experience and accuracy,
at the service of quality

For over 50 years, Tecnovia has had a technical laboratory area dedicated to testing construction materials: soils, aggregates, concrete and bituminous mixtures, and to developing studies for the design of innovative materials, including special concretes, high-performance bituminous mixtures and soil-cement. 

 

Under the L4b brand, Tecnovia’s Materials and Construction Laboratory carries out conformity assessment tests on materials and construction works, ensuring compliance with regulatory requirements, such asCE marking, project specifications and customer specifications. Our services ensure the quality of materials, the proper execution of works and the formulation of advanced tecnical products. 

CONTACTS

L4b - Materials and Construction Laboratory

Rua António Variações, No. 5 

2740-315 Porto Salvo 

Email: comercial.laboratorio@tecnovia.pt 

Telephone: (+351) 21 422 54 00 (*) / +351 910 186 931(**) 

Calls to the national landline network (*) and national mobile network (**) 

L4B-1

OUR SERVICES

The Tecnovia Laboratory offers a complete portfolio of specialized technical services, performing more than 80 different tests in the areas of soils, aggregates, concrete, bituminous mixtures and bitumens. Our technical capacity allows us to respond to the most complex and demanding needs of the civil construction sector.

LABORATORY TESTS

Our technical capabilities cover more than 80 different tests in a controlled laboratory environment, ranging from soils, aggregates, concrete, CDW, cement paste, bituminous mixtures and bitumens. 

IN SITU TESTS

Turning a project into reality requires rigorous monitoring to ensure quality of execution. Our laboratory monitors Tecnovia’s projects and those of external clients to measure and monitor parameters in the execution of projects.

COMPLETE LISTS OF TESTS

Access the detailed list of all laboratory tests available at L4b: soil tests, soil-cement tests, aggregate and filler tests, bitumen tests, fresh and hardened concrete tests, bituminous mixture tests and sonic tests.

DOWNLOAD THE LIST OF TESTS

SOIL TESTS

  • Gradation test by wet sieving — LNEC E 239
  • In situ dry density (sand replacement method) — LNEC E 204
  • In situ dry density (using non-nuclear densimeter)
  • CBR — LNEC E 198
  • Immediate CBR — NF P 94-078
  • Proctor compaction — LNEC E 197
  • Determination of particle density — NP 83
  • Plate load test (LCPC procedure)
  • Plate load test (NLT standard) — NLT 357
  • Sand equivalent — LNEC E 199
  • Attenberg limits — NP 143
  • Organic matter content — LNEC E 201
  • Methylene blue value (NF standard — aggregates) — NF P 18-592
  • Methylene blue value (NF standard — soils) — NF P 94-068

TESTS ON CEMENT-SOIL

  • Diametral compression in core samples taken from pavement — ASTM C 496
  • Diametral compression in laboratory-made specimens (Brazilian test) — ASTM C 496

TEST ON AGGREGATES AND FILLERS

  • Sampling of aggregates — NP EN 932-1
  • Gradation test (LNEC specification) — LNEC E 233
  • Gradation test of aggregates (EN standard) — EN 933-1 + A1
  • Gradation test of rockfill (EN standard) — EN 13383-2
  • Dry bulk density “in situ” (using a nucleometer)
  • Bulk density and void ratio — NP EN 1097-3
  • Proctor compaction (LNEC spec.) — LNEC E 197
  • Proctor compaction (EN standard) — EN 13286-2
  • Density and water absorption of crushed stone and gravel — NP 581
  • Density and water absorption (basket method) — NP EN 1097-6 + A1
  • Density and water absorption (pycnometer method) — NP EN 1097-6 + A1
  • Sample splitting— NP EN 932-2
  • Abrasion resistance — Micro Deval test — NP EN 1097-1
  • Water content (NP standard) — NP 84
  • Length of ballast particles — NP EN 13450
  • Density and water absorption of rockfill (EN) — EN 13383-2
  • Fragmentability test — NF P 94-066
  • Degradability test — NF P 94-067
  • Los Angeles test (LNEC spec.) — LNEC E 237
  • Sand equivalent (LNEC specification) — LNEC E 199
  • Sand equivalent (EN standard) — NP EN 933-8
  • Shape (L/E>3) of rockfill (EN) — EN 13383-2
  • Flattening index — NP EN 933-3
  • Elongation and lamellation indices — BS 812
  • Shape index — EN 933-4
  • Attenberg limits — NP 143
  • Bulk density and water absorption of sand — NP 954
  • Resistance to fragmentation — Los Angeles test — EN 1097-2
  • Compressive strength — NP EN 1926
  • Water content (EN standard) — NP EN 1097-5
  • Methylene blue value — NF P 18-592
  • Methylene blue value — EN 933-9

TESTS ON BITUMENS

  • Determination of softening point by the ‘Ring and Ball’ method — NP EN 1427
  • Needle penetration test — NP EN 1426

TESTS OF FRESH AND HARDENED CONCRETE

  • Sampling — NP EN 12350-1
  • Slump test — NP EN 12350-2
  • Execution and curing of test specimens for mechanical strength tests — NP EN 12390-2
  • Density — NP EN 12350-6
  • Compressive strength of test specimens — NP EN 12390-1 and NP EN 12390-3

TESTS OF BITUMINOUS MIXTURES

  • Aggregate/binder affinity — EN 12697-11
  • Sampling of bituminous mixtures (EN standard) — EN 12697-27
  • Theoretical maximum density (ASTM standard) — ASTM D 2041
  • Theoretical maximum density (EN standard) — EN 12697-5
  • Void characteristics (EN standard) — EN 12697-8
  • Core sampling of bituminous mixtures
  • Determination of density (ASTM standard) — ASTM D 2726
  • Determination of density (EN standard) — NP EN 12697-6 + A1
  • Determination of resistance to sliding — British pendulum method — EN 13036-4
  • Determination of fatigue resistance (4PBT) — NO STANDARD
  • Wet Cantabro (abrasion resistance) test — NLT 362
  • Marshall compression test (ASTM standard) — ASTM D 1559
  • Marshall compression test (EN standard) — NP EN 12697-34 + A1
  • Production of bituminous mixtures in the laboratory (EN standard) — EN 12697-35
  • Retained Strength Index (MIL-STD) — MIL-STD-620a
  • Measurement of evenness with a 3 m straightedge — NP EN 13036-7
  • Percentage of bitumen by centrifugation with recovery of fines (ASTM standard) — ASTM D 2172
  • Percentage of bitumen by centrifugation with recovery of fines (EN standard) — NP EN 12697-1
  • Percentage of bitumen by ignition (ASTM standard) — ASTM D 6307
  • Percentage of bitumen by ignition (EN standard) — EN 12697-39
  • Mass loss — EN 12697-17
  • In situ permeability LCS — NLT 327
  • Preparation of slabs in roller compactor — EN 12697-33
  • Preparation of test specimens in impact compactor (EN standard) — EN 12697-30
  • Depth of surface texture (sand patch) — NF P 98-216-1
  • Resistance to permanent deformation (wheel tracking test) — EN 12697-22+A1
  • Water sensitivity — ITSR — EN 12697-12

SONIC TESTS

NATIONAL PRESENCE

We provide services throughout Portugal through four laboratories strategically located in Viseu, Rio Maior, Évora, and Ourique. 

Each facility has qualified staff and technologically advanced equipment to meet the most demanding needs of the sector. 

We have the resources to provide services anywhere in the country. 

FROM INTERNAL EXCELLENCE TO MARKET LEADERSHIP

Initially created to ensure quality control and solution development in Tecnovia’s operations, the laboratory has become a fundamental pillar of our technical excellence, ensuring that each project is executed based on concrete and verified data. Today, this expertise extends to providing services to external clients, consolidating our position as a benchmark partner in the construction market. 

Our expertise covers testing of bituminous mixtures and bitumens, concrete, rocks, CDW, soils and aggregates, both on site and in industrial environments: quarries, concrete and asphalt plants. This technical expertise allows us not only to ensure the highest standards of quality and reliability, but also to develop more sustainable solutions for construction.  

 

Commitment to Sustainability

In a constantly evolving sector, our commitment to the circular economy and sustainability guides us in the design and development of materials with a lower carbon footprint, high performance and durability. We develop innovative formulations that incorporate recycled materials, reduce the environmental footprint and contribute to a more responsible future in civil construction.

ACCREDITATION AND CERTIFICATIONS

IPAC Accreditation 

The Tecnovia Laboratory in Rio Maior is accredited by the Portuguese Accreditation Institute (IPAC) for testing the compressive strength of concrete, in accordance with standard NP EN 12390-3. This distinction reinforces our position as a nationally recognised laboratory focused on the continuous improvement of the services we provide.

 

Quality and Environmental Certifications 

The laboratories in Viseu, Rio Maior, Évora and Ourique have the following certifications for testing construction materials and monitoring construction works:

EQUIPMENT AND TECHNOLOGY

The Tecnovia Laboratory is equipped with state-of-the-art technology and modern equipment, allowing tests to be carried out with maximum precision, reability and compliance with the most demanding technical standards in the civil construction sector.

REASONS TO CHOOSE L4B – MATERIALS AND CONSTRUCTION LABORATORY

We reduce execution risks and after-sales costs through preventive and rigorous quality control of materials 

We ensure compliance with legislation and regulatory requirements, including CE marking and specific industry standards 

We formulate and analyse customised materials to meet your most demanding technical challenges 

We provide services wherever you need them, with mobile teams ready to carry out on-site testing anywhere in the country