The Bending Beam Rheometer – BBR (or Beam Fluency Rheometer) is an instrument used to evaluate the flexural stiffness properties of asphalt binders at low temperatures (-36°C < T < 0°C), by determining the static stiffness properties (S), which corresponds to the relationship between bending stress and bending strain under constant load; and the relaxation modulus (m), which corresponds to the logarithm of the stiffness modulus against the logarithm of time at a given moment. These properties are determined from the response to static loading (creep) on a beam of binder.

Stratura is a pioneer in high-performance asphalt materials technology, which has the Bending Beam Rheometer – BBR Equipment, an important tool that allows engineers and consultants to anticipate decision-making in relation to design and construction methods, such as:

– Evaluate the best binder that suits the project’s climate and location;

– Develop asphalt mixtures with asphalt binders with low static stiffness, as they will be less likely to crack in cold weather;

– Develop asphalt binders with high values ​​of relaxation modulus, as they will be more efficient to dissipate stresses formed during its contraction.

Be part of this team! Bring your asphalt mixture project to our Laboratory located in Paulínia-SP, the best in Asphalt Performance in Brazil!