Concrete Non Destructive Testing
/Common/images-asp.aspx) Concrete Non Destructive Testing (NDT) comprises testing a property of concrete, largely without damaging the concrete to assess some parameter which either directly or indirectly provides a required characteristic of the concrete or its embedment's.
Some concrete testing methods have been around for 30-50 years but have improved dramatically since the introduction of the PC: cover meter, Schmidt hammer (rebound hammer), potentials, polarization resistance, moisture measurement, maturity. Other concrete testing methods are less than 10 years old and have only become viable since micro computers allowed rapid data collection and assessment (impact echo, impulse response, ground penetrating radar). All of these are commercial techniques that can be applied to give very useful information in construction and assessment of old structures.
PCTE have a long history in the development and assessment of concrete testing equipment. Whilst Reuben Barnes heads the sales team from PCTE Melbourne office he is supported by an expert team of NDT engineers in Perth and Sydney. William Ward is the NSW Sales Engineer, supporting sales into NSW. Apart from sales and hire PCTE can arrange training courses for your staff.
PCTE is the newly formed entity: Papworths Construction Testing Equipment Pty Ltd. PCTE now handles all of the equipment sales and hire that Papworths Pty Ltd used to. This is purely a name change and you will enjoy all of the services that you have in the past.
Guide to the Assessment of Concrete Structures
From 9th - 12th August PCTE and Proceq presented a seminar around Australia on applications using Proceq’s testing equipment. The presentations introduced several key new aspects to structure investigations.
- Fib Model Code 2010 introduces ‘reliability’ as part of durability design. This has a major impact on repair design and hence inspection requirements
- Using standard criteria for assessment of corrosion likelihood with electrical potentials is old paradigm. Using rapid data acquisition and analysis using the CANIN+ statistical analysis of bimodal distributions enables potential criteria to be developed for each structure
- 4 probe Wenner resistivity measurements are replacing Rapid Chloride Permeability measurements following
- FHWA tests (using the ResiPod) showed a high degree of correlation between Resistivity and RCP results.
- ResiPod introduction in March. ResiPod eliminates errors in measurement of surface resistivity
- RILEM TC-154 relates resistivity to design life based on theoretical relationships between resistivity and chloride diffusion and corrosion rate.
- Accuracy of rebound hammer method is much increased using the ‘Silver Schmidt’ which is a totally re-designed instrument that eliminates many of the sources of errors in the Original Schmidt and its copies
- AS 1884 method for assessing concrete moisture state is inappropriate and could lead to failure of floor coverings. ASTM F 2170 is the appropriate standard and the Hygropin complies with this standard.
Copies of the course notes, including slides and published papers, which give full details of these and other significant aspects are available by request from your local contact. PCTE can also arrange for summary presentations to your company.
PRODUCT LAUNCH
PCTE in company with Engius is proud to introduce the next generation of IntelliRock equipment, IntelliRock Wireless. IntelliRock loggers have been proven worldwide as a reliable way to monitor concrete maturity for estimating insitu concrete strength. They can also be used for temp monitoring. The IntelliRock Wireless allows you access to this data from your office or even off site by internet of Smartphone alerts.
What are the benefits of the IntelliRock System?
- Have internal temps of you elements during curing
- Prevent thermal cracking
- Monitor insitu strength for stripping, lifting and apply tensioning without mishap
- Reduce your cost due to cylinder testing
- And best of all optimise your construction cycle
Follow this link for information on the system....
Previously the data from loggers could only be collected using a handheld reader. Now you have a choice with the introduction of IntelliRock Wireless data can be reviewed from any PC, or even on the IntelliRock LIVE website. Leave site overnight or for a meeting and still be able to monitor critical information direct from the yard.
As an introductory offer for this new system we are offering two configurations of starter kits:
Check out some of our great deals on second hand demonstator models. Most of the gear is only used on trials and for demonstrations so you can get a piece of equipment with minimal miles on it for a really great price. Take a look at this months great deals here...
/Common/data-projector.aspx) PCTE have an extensive library of slides that they use in presentations covering a range of topics including: Schmidt Hammer (rebound hammer), maturity, pull off tester, air permeability, concrete ultrasonics, monitoring, absorption, carbonation, impact echo, radar (ground penetrating radar) and much more. Slides have been organised by product type but in the order that PCTE use them in slide shows. Lecture slides may be used by anyone and are not copyrighted.
PCTE did not just become a distributor of concrete NDT equipment. It started when we were looking for the best equipment for use on site surveys. Having selected Proceq’s Profometer cover meter, CANIN+ potential and resistivity equipment, and the DIGI-Schmidt as the best equipment of its type available we talked to Proceq Switzerland about supply.
One thing led to another and we ended up as exclusive distributor. Having decided to become a distributor of concrete NDT equipment we continued a policy of searching for the best equipment of its type for each item. We are now proud to represent :-
- Engius for maturity and concrete moisture
- Sensors and Software for Ground Penetrating Radar (GPR)
- Olsons Instruments for Impact Echo, and other pulse echo NDT’s
- IDS for Ground Penetrating Radar (GPR) and the IBIS-S
- BGB for corrosion monitoring
- ACSYS Ultrasonic Pulse Echo system
- JRC's Handy Search for Portable GPR
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Melbourne (Head Office)
Street: L2 326 Keilor Rd, Niddrie VIC 3042
Postal: PO Box 211, Niddrie VIC 3042
AUSTRALIA
Tel: 03 9938 3830
Fax: 03 9938 3899
Mob: 0408 034 668
Sydney
10 Dale St, Brookvale NSW 2100, Australia
Tel: 02 9939 7177
Fax: 02 9939 7544
Mob: 0418 381 709
Perth
34 Kiln Rd, Nowergup WA 6032, Australia
Tel: 08 9407 5363
Fax: 08 9407 4031
/Products/Quality---Strength/Schmidt-Hammer/7e2f0aa945.aspx) PCTE team have an extensive background in concrete Non Destructive Testing (NDT). 30 years ago Frank Papworth was involved in assessing ultrasonic's and gamma ray backscatter as a means of detecting defects in concrete. He also worked as part of a team developing corrosion assessment methods for marine structures.
Techniques such as potentials, resistivities and polarization resistance were evaluated as part of the Concrete in the Oceans programme in the UK and published in “Tongue Sands Tower Survey” the report of a major seminar at the Institution of Engineers UK in 1980. The team under Frank Papworth developed the first “Potential Wheel” and concrete four probe resistivity equipment. Many of these techniques have become common place today. But PCTE are still at the forefront of concrete NDT. For ex /Products/Concrete-Gemetry/Profoscope/Image-10.aspx) ample our MD Reuben Barnes has trained internationally on advanced NDT such as GPR and Impact Echo. He also has extensive field experience.
Whatever the equipment you require, whether you want to hire or buy, talk your needs over with PCTE first.
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