Our
laboratories

Our laboratories have state-of-the-art equipment to evaluate asphalt binders, prepare mix design projects and develop new products. We have 4 laboratories, they are:

  • Soils and Aggregates Laboratory
  • Paving Design Laboratory
  • Asphalt Binders and Emulsions Laboratory
  • Technological Research Laboratory
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Nossos Equipamentos

Our equipment

Our Technology Center has instrumental equipment for the complete characterization of asphalt emulsions, polymer-modified asphalts, ground tire rubber asphalts, soils, mineral aggregates and asphalt mixtures.

We qualify the performance of our asphalt binders with the Dynamic Shear Rheometer (DSR) so that our customers receive the most suitable asphalt binder for their construction projects. In addition, we evaluate the performance of asphalt mixtures prepared in our technology center using the Hamburg type Double Wheel Tracker – Hamburg Wheel Tracking Device, which presents data on permanent deformation in asphalt mixtures.

Equipment list

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  • Loaded Wheel Tester – LWT;
  • Wet Track Abrasion Test – WTAT;
  • Pneumatic cohesion meter;
  • Automatic Marshall socket;
  • Automatic CBR Marshall Press;
  • Automatic Rotary Compactor – Superpave;
  • Device for RICE Test;
  • Pilot mill;
  • High Shear Mixer with High Speed – Silverson;
  • Digital Rotational Viscometer series DV2T;
  • Automatic penetrometer
    • Ductilometer;
    • Automatic Potentiometric Titrator for Asphalt Acidity Index Analysis;
  • Rolling thin film oven test (RTFOT);
  • Electron microscope;
  • pH Meter;
  • Flash point (TAG and Cleveland);
  • Torsional Asphalt Elastic Recovery Meter – NLT-329/91 (Spain);
  • Kinematic viscometer;
  • Saybolt-Furol viscometer;
  • Karl Fischer titrator;
  • Sieve analysis for determining particle sizes;
  • Sieve shaker;
  • “Los Angeles” Abrasion
  • Muffle Furnace (NCAT);
  • Abson distiller for bitumen recovery;
  • Soxhlet apparatus for bitumen extraction without loss of fines that make up the asphalt mixture;
  • Rotarex apparatus;
  • Benkelman Beam;
  • Rotary vacuum evaporator;
  • Dynamic Shear Rheometer – DSR;
  • DWT Hamburg type Double Wheel Tracker – Hamburg Wheel Tracking Device;
  • Balances, ovens, desiccator;
  • Ultra-thermostatic bat;
  • Still;
  • Thermal oil bath;
  • Centrifuge;
  • Magnetic stirrer;
  • Rotary drilling machine with drill bit;
  • Particle charge meter;
  • Moisture determination balance.

Services offered

Mix Design Projects

CBAA Technology Center is ready to serve our customers, preparing accurate and reliable mix design projects. We elaborate mix design projects for asphalt mixtures using the traditional Marshall method and the Superpave method. In addition, we have all the equipment for mix design projects such as cold asphalt Micro-surfacing, Pre-Mixed Cold (PMF) type, Surface Treatments (Single, Double, Triple), Stone Matrix Asphalt (SMA), Porous Friction Course (CPA), among others.

Mix Design Projects

Quality Control

We have modern equipment for the complete performance characterization of asphalt products according to Performance Grade (PG) specifications. Furthermore, we maintain strict quality control in the production of asphalt products at our various manufacturing units at CBAA. Our focus is to ensure that your construction project receives a high-quality asphalt product.

Quality Control

Technical Support

The technical staff of CBAA Technology Center is available to assist clients on-site, providing support and guidance throughout their construction projects. Our goal is to share knowledge to ensure that your construction project is efficient and of the highest quality upon completion.

Technical Support

Research and Development

CBAA Asfaltos, through its technology center, is constantly seeking innovations to improve the performance of its asphalt products. That is why we rely on the collaboration of suppliers, customers, researchers, and the academic community. To turn our ideas into reality, we have a pilot plant and high-shear mixers for researching and developing innovative and sustainable solutions for our asphalt products.

Research and Development

Complete list of services

Asphalt Product Testing

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  • Adhesion in fine and coarse aggregates;
  • Particle Charge;
  • Relative Density in Asphalt Binders (CAP’s and AMP’s);
  • Demulsibility;
  • Distillation in Diluted Asphalts;
  • Determination of specific gravity, relative density and °API – Densimeter method;
  • Determination of Water Content by Reagent – Karl Fischer Method;
  • Determination of the dry residue content of asphalt emulsions in oven;
  • Determination of acidity number – Potentiometric titration method;
  • Ductility;
  • Phase Separation Test;
  • Storage stability;
  • LAS TEST (Linear Amplitude Sweep);
  • Mixture with Cement;
  • Mixture with Silica Filler;
  • MSCR – Multiple Stress Creep and Recovery;
  • Sieving;
  • Penetration;
  • PG High Temperature – Performance Grade High Temperature – Rheometer (DSR) DHR III;
  • pH of Asphalt Emulsions;
  •  Cleveland Flash Point;
  •  TAG Flash Point;
  •  Bitumen Weight Percentage;
  •  Presence of TLA;
  •  Elastic Recovery by Ductilometer;
  •  Torsional Elastic Recovery – Spanish Method;
  •  Residue by Distillation;
  •  Dry residue;
  •  Water Resistance – Dry aggregate and Wet aggregate;
  •  RTFOT – Determination of the Effect of Heat and Air on Rolling Thin Film;
  •  Sedimentation;
  • Solubility in Trichlorethylene;
  •  Water content by Distillation;
  •  Ash Content;
  •  Mass Variation by RTFOT;
  • Kinematic Viscosity;
  •  Brookfield Dynamic Viscosity – Rotational – Spindle 21;
  •  Brookfield Dynamic Viscosity – Rotational – Spindle 3;
  •  Saybolt-Furol Viscosity.

Aggregate and Soil Tests

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  • “Los Angeles” Abrasion;
  •  Coarse Aggregate – Adhesion to the bituminous binder;
  •  Coarse Aggregate – Specific Gravity, Apparent Specific Gravity and Water Absorption;
  •  Fine Aggregate – Adhesion to the bituminous binder;
  •  Fine Aggregate – Real density;
  •  Fine Aggregate – Bulking;
  •  Fine Aggregate – real specific gravity through the “Chapman” flask;
  •  Aggregates – Determination of the degradation index of rocks after Marshall compaction – with binder (IDML);
  •  Aggregates – Determination of the degradation index of rocks after Marshall compaction – without binder (IDM);
  •  Aggregates – Content of powdery materials;
  •  Aggregates and soils – Moisture content;
  •  Loose aggregates – Bulk density;
  •  Sieve Analysis;
  • Portland Cement and Hydrated Lime – Specific gravity using the “Le Chatelier” flask;
  •  Durability through the use of sodium sulfate solutions;
  •  Sand Equivalent;
  •  Shape index using the caliper method;
  •  Liquidity Limit;
  •  Plastic Limit;
  •  In-situ Apparent specific gravity using the Sand Cone Method;
  •  Real specific gravity – Filler;
  •  Surface reactivity of fine aggregate fraction through absorption by “Methylene Blue;”
  •  Soils – Real density;
  •  Soils – California Bearing Ratio (ISC) // CBR;
  •  Moisture using the “Speedy.”

Asphalt Mixture Tests

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  • Compaction and analysis of asphalt mixtures using the SUPERPAVE method with the Gyratory Compactor;
  •  Permanent deformation using the DWT Wet – Double Wheel Tracker Wet – Hamburg Wheel Tracking Device test method;
  •  Determination of sand adhesion in cold asphalt micro-surfacing using the LWT machine;
  •  Determination of the adhesive properties of mixtures;
  •  Determination of cohesion and curing characteristics by the cohesion meter;
  • Determination of bulk density and apparent specific gravity of compacted specimens;
  • Determination of the theoretical maximum density and the theoretical maximum specific gravity in non-compacted samples – RICE TEST;
  • Determination of mass loss by Cantabro abrasion;
  • Determination of tensile strength by application of the diametral compression test;
  • Determination of wet abrasion loss – WTAT;
  • Determination of Moisture-Induced Damage – DUI;
  • Determination of mixing time;
  • Mix design of bituminous mixtures using the Marshall method.

Technical Support

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  • Delineation of the longitudinal influence line of the deformation basin using the Benkelman Beam
  • Determination of the average depth of the surface macrotexture of asphalt pavements using a volumetric approach – Sand patch method
  • Determination of deflections using the Benkelman Beam method
  • Determination of bitumen content using the Soxhlet and Rotarex
  • Rapid determination of bitumen content using the NCAT Furnace
  • Extraction of Specimens Using a Rotary Extractor – 100 mm / 150 mm
  • Asphalt recovery by the Abson Method

Research

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  • Pilot Mill for formulating exclusive asphalt emulsions to meet the specific needs of each application and region, as well as developing new products
  • High Shear Incorporator for modification, additives, and dilution of asphalt binders with ideal formulations for each Refinery
  • Fluorescence Microscope to evaluate the performance and incorporation of raw materials in our formulations and products
  • Dynamic Shear Rheometer to evaluate the behavior of diverse types of asphalts with specific incorporation and additives, being able to evaluate the best product for our customers
  • Aging of asphalt binders to determine the final quality of our products, using the RTFOT oven
  • Utilization of SUPERPAVE Gyratory Compactor and DWT Hamburger type Double Wheel Tracker to develop new products and processes, benefiting customers with the best quality and lower cost
  • Propose Technical Solutions to our customers, analyzing the conditions of the pavements, according to climate, region and traffic, preparing studies of mix design of asphalt mixtures and adapting them to the conditions pre-established by the contractors, with high performance and quality, at the lowest possible cost

Asphalt Mix Design Projects

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  • Porous Friction Course – CPA
  • Capeseal
  • Hot Mix Asphalt – HMA /
  • Conventional and Modified Asphalts
  • Hot mix asphalt with reclaimed asphalt pavement (RAP) addition
  • Hot mix asphalt with rubberized asphalt
  • Warm Mix Hot Mix Asphalt / Conventional and Modified Asphalt
  • Asphalt slurry – LA
  • Controlled-Setting Asphalt Slurry – LARC
  • Cold Asphalt Micro-surfacing – MRAF
  • Pre-mixed cold (PMF) type / Conventional and Elastomeric Emulsions
  • Stone Matrix Asphalt – SMA
  • Double Surface Treatment – TSD / Conventional and Elastomeric Emulsions
  • Single Surface Treatment – TSS / Conventional and Elastomeric Emulsions
  • Triple Surface Treatment – TST / Conventional and Elastomeric Emulsions