Masonry and Brickwork

Investigating Form & Strength of Brickwork Elements

From innovative NDT in the form of GPR to determine form of construction through to intrusive investigations via coring and extraction of bricks. All backed up with over 30 years of experience and supported by expert lab analysis.

Compressive strength comprises of:

• Units - Compressive Strength Testing of Brick & Masonry Units
• Cores - Compressive Strength Testing of Brick & Masonry Cores
• UKAS - All test carried out by UKAS Accredited Laboratories
• Technique Selection - correct techniques can save time and money

Concrete & steel assessments

Our Corrosion Condition Surveys work falls into two main categories; first, the condition of the concrete and second the condition of the steel elements. These lists are not exhaustive, but give you a flavour of the length and depth of the work we cover.

Concrete elements

To discover the concrete condition and it's embedded reinforcement, HTA employs a vast range of techniques to determine the condition and potential repair strategies to enable you to move forward with confidence.

• Covermeter Survey (UKAS)
  To determine the protective thickness of the concrete covering the reinforcement bars
• Half-Cell Potential Survey (UKAS)
  To determine the risk of reinforcement corrosion of the embedded reinforcement
• Depth of Carbonation Survey (UKAS)
  To determine this depth and it's associated risk with reinforcement corrosion
• Extraction of Dust Samples (UKAS)
  For levels of contaminants in the concrete eg chloride levels
• Extraction of Core Samples (UKAS)
  For material characteristics of the concrete eg cement, sulphate & alkali contents
• GPR Survey
  To determine cracking and voidage in concrete
• Tomography Survey
  Alternative technology to determine cracking and voidage in concrete
• Pundit (Ultrasonic) Survey
  To determine the variations in concrete quality due to external effects eg fire or frost damage
• High Alumina Cement (HAC) Survey
  Visual and sampling survey to determine the presence of HAC
• Resistivity Survey
  To determine the rate of corrosion of the embedded reinforcement
• Linear Polarisation Survey
  To determine extent of corrosion present to embedded reinforcement
• Crack Survey
  To determine extent, depth and movement of cracks the latter utilising monitoring equipment
• Visual Survey
  Carried out to determine visual condition of concrete
• Delamination (Hammer tap) Survey
  To determine delaminated (hollow sounding) and spalled concrete
• Steel (Metal) Elements
  HTA primarily use the less destructive NDT technology for these condition surveys

Steel & metal elements

To discover the corrosive condition, HTA offers a complete remit of works to provide you with all the data required to move forward with confidence.

• Visual Survey
  Determining the actual condition of exposed steel sections
• Coating Assessment
  Determining the condition of the coating to steel elements via visual analysis
• Coating Adhesion Testing
  To determine adhesion to coating to metal
• Corrosion Survey
  Ultrasonic test methods to determine of loss of section

Build confidence by getting in touch

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