Structural Investigations
Reduced asset damage via NDT
We reduce the intrusive works and structural damage of our clients’ assets by applying innovative NDT technology alongside the traditional investigative approach. Enabling the investigation of various construction types and materials while limiting structural vibration, site noise and dust.

Structural Investigation categories
1. Structural Construction
Discover not only the construction material but also the construction type, HTA offers a complete remit of works to provide you with all the data required to move forward with confidence.
- Concrete Type
Is it reinforced, pre-cast, post tensioned or steel encased? - Concrete Strength
Determination carried out via NDT and compressive testing - Steel Reinforcement
NDT to determine of bar depth and pattern including multiple layers - Steel Grade
Determination of tensile strength via removal of samples - Metal Beams
Determination of construction details by exposure - Metal Beam Weldability
Chemical analysis determining carbon equivalent value - Metal Type & Grade
By removal of samples and metallurgical testing - Cavity Wall Ties
Determining presence and correct spacing - Masonry Construction Details
Determination via NDT, exposure and coring - Masonry & Mortar Strength
Determination via sampling and analysis - Paint Inspections
Adhesion testing plus sampling for lead content and type analysis - Timber & Wood
Visual assessment, grading plus dry and wet rot surveys
2 Condition of structural elements
Degradation, corrosion, non-compliant construction and change of use are the main causes of building problems and HTA offer a full remit of works to provide you with all the data required to move forward with confidence.
- Reinforced Concrete
NDT to determine extent & rate of corrosion of embedded reinforcement - HAC Concrete
Detection and condition of High Alumina Cement elements - Post Tensioned Concrete
NDT and sampling to determine post tension condition - Metal Elements
Ultrasonic thickness technology for corrosion surveys - Welds
Ultrasonic technology, MPI and DYE Penetration for inspection and testing - Cavity Wall Ties
Determining embedment, condition and type - Masonry Condition
Visual assessment to determine loss of brick facade and mortar beds - Paint Condition
Visual assessment for debondment, cracking and failure - Timber & Wood
Assessment for dry and wet rot surveys and insect attack
Showtime: Carrying out a GPR Survey
Take advantage of our Open Door Policy
Even if you do not end up using HTA we are happy to advise on the best course of action for the outcome you wish to achieve.
It is impossible for one company to carry out every project, however we can share our expertise far and wide.
Call: 0800 680 0482 or Email: testing@hendersonthomas.co.uk