Engineering Glossary
Defined terms used across the Atlas Consultant building repair engineering knowledge centre.
BOQ
Bill of Quantities, a measured schedule of repair items used for tendering, billing and cost control.
Carbonation
Chemical reaction that reduces concrete alkalinity and can increase corrosion risk when it reaches reinforcement.
Core Test
Extraction and testing of concrete cores to estimate in-situ compressive strength.
FRP
Fibre reinforced polymer strengthening system used to increase member capacity or confinement where designed.
Half-Cell Potential
An electrochemical test indicating probability of reinforcement corrosion in concrete.
Jacketing
Strengthening method where an existing member is enlarged or confined with added reinforcement and concrete or micro-concrete.
NDT
Non-destructive testing used to assess existing concrete or reinforcement condition without major damage to the member.
Nominal Cover
Specified concrete cover measured from the concrete surface to the nearest reinforcement, used for durability and fire protection.
Rebound Hammer
A surface hardness test used as an indicative method for concrete quality assessment.
Stability Certificate
Professional certification issued after adequate inspection and engineering assessment of structural stability.
Structural Audit
Systematic assessment of building condition, distress, safety risk and repair requirement.
UPV
Ultrasonic Pulse Velocity test used to assess concrete quality and uniformity through wave travel speed.