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© 2014 Proceq SA 

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2.  Standards and Equipment Selection

2.1  Summary of the main pull-off testing standards
 

Standard

Description

Test disc

Specified load rate

Total 

test 

time

EN 1542

Products and systems for 

the protection and repair of 

concrete structures - Mea-

surement of bond strength by 

pull-off

Ø 50mm

0.05 ± 0.01 Mpa/s

< 90s

EN 1015-12

Determination of adhesive 

strength of hardened render-

ing and plastering mortars on 

substrates

Ø 50mm

0.003 – 0.1 MPa/s

20-60s

EN 1348

Mortar for tiles and slabs. 

Determination of the adhesive 

strength of cement based mor-

tar for indoor and outdoor.

Ø 50mm

250 ± 50 N/s

-

ISO 4624

Paints and varnishes - Pull-off 

test for adhesion. Supercedes 

EN24624 and NF T30-062

Ø 20mm

< 1 MPa/s

< 90s

BS 1881  

Part 207

Recommendations for the as-

sessment of concrete strength 

by near-to surface tests

Ø 50mm

0.05 ± 0.03 MPa/s

-

ASTM D 

4541

Standard test method for pull-

off strength of coatings using 

portable adhesion testers

-

< 1 MPa/s

< 100s

ASTM C 

1583

Standard test method for 

tensile strength of concrete 

surfaces and the bond strength 

or tensile strength of concrete 

repair and overlay materials by 

direct tension (Pull-off method)

Steel

Ø 50mm

5±2 psi/s

0.035±.015MPa/s

-

ASTM D 

7234-05

Standard test method for pull-

off adhesion strength of coat-

ings on concrete using portable 

pull-off adhesion testers

Ø 20mm

Ø 50mm

Ø 75mm

< 0.2MPa/s, 30psi/s

5s to 

30s

ASTM D 

7522

Standard test method for pull-

off strength of FRP bonded to 

concrete substrate

Ø 50mm 

Ø 75mm

Ø100mm

< 1 MPa/min

< 150 psi/min

ZTV-ING

The Federal Minister for 

Transport. Additional technical 

contract conditions and guide-

lines for engineering buildings 

and the repair of concrete 

components

Ø 50mm

100 N/s for concrete

300N/s for elastic 

surfaces (Proceq 

DY-206, Proceq DY-

216 recommended 

for elastic surfaces)

Summary of Contents for DY-2 series

Page 1: ...Proceq DY 2 Operating Instructions Swiss Precision since 1954...

Page 2: ......

Page 3: ...oceq DY 2 Menu 6 4 Test Parameter Settings 6 5 Performing a Pull Off Test with Proceq DY 2 9 5 1 Test Preparation 9 5 2 Measurement Procedure 10 5 2 1 Peak load test duration and effective load rate 1...

Page 4: ...e check operation and maintenance of the instrument and its components Unauthorized structural modifications to the instrument and its components Serious damage resulting from the effects of foreign b...

Page 5: ...th by near to surface tests 50mm 0 05 0 03 MPa s ASTM D 4541 Standard test method for pull off strength of coatings using portable adhesion testers 1 MPa s 100s ASTM C 1583 Standard test method for te...

Page 6: ...ded for elastic surfaces due to higher requirement on load rate Proceq DY 216 covering most applications Recommended for elastic surfaces due to higher requirement on load rate Proceq DY 225 required...

Page 7: ...nt A complete charging cycle will take approximately 3 hours longer in the case of a deep discharge Note When charging the battery or when operating on mains supply the charging circuit will be discon...

Page 8: ...ts down automatically after 5 minutes of inactivity 3 3 The Proceq DY 2 Menu On start up the main menu screen will be shown Set Measurement Unit Start Test Memory Select Test Disc Diameter Set Test Di...

Page 9: ...m value If no maximum load is required this should be set at the maximum value supported by the instrument i e 6kN 16kN or 25kN Press the center key to complete the action Load rate Set the load rate...

Page 10: ...00 measurements When completely full the oldest will be overwritten To review the saved measurements follow the procedure below Choose the memory icon Choose the icon to review the measurements Scroll...

Page 11: ...s are The size of the test disc The load rate applied to the test disc The total time allowed for the test 5 1 Test Preparation Pull off testing is used on many different types of materials The actual...

Page 12: ...If the surface is inclined this method is not practical 5 2 Measurement Procedure Press the center key to begin Verify settings Note In the case of square discs the diameter is a theoretical value Pa...

Page 13: ...at the graphical output in this case for confirmation The effective load rate is calculated from the point at which load rate control begins 250N to the time at which 80 of the peak load is reached T...

Page 14: ...cture as a percentage to the nearest 10 for each type of fracture The first column indicates where the break took place The second column indicates the percentage of the break in that particular layer...

Page 15: ...load must not exceed 16kN See Chapter 4 Set the Load Parameters 6 2 Working on vertical surfaces or overhead When working on vertical surfaces or overhead ensure that the test disc is firmly glued to...

Page 16: ...ions calibration certificate and carrying case 7 2 Test Discs and Accessories 346 10 500S Test disc steel 50mm M10 set of 10 346 10 501S Test disc aluminum 50mm M10 set of 10 346 10 502S Test disc alu...

Page 17: ...have the instrument serviced and re calibrated on a yearly basis Customers may however determine their own service interval based on application and usage The instrument assists with determining a su...

Page 18: ...stored on Proceq DY 2 Double click on the DY Link icon on your desktop or start DY Link via the start menu DY Link starts with a blank list Application settings The menu item File Application setting...

Page 19: ...ty programs Click on the measurement object s you wish to export Click on the Export measurements to CSV file s icon The data for this measurement object s is exported as a Microsoft Office Excel comm...

Page 20: ...op of the screen PQUpgrade icon Allows you to upgrade your firmware via the internet or from local files Open DY link project file icon Allows you to open a previously saved pqr project Save project i...

Page 21: ...window Start the test on the Proceq DY 2 and the load increase will be displayed in real time until the test is completed Note This curve is for monitoring purposes only You have to perform a download...

Page 22: ...2014 Proceq SA 20 Notes...

Page 23: ...2014 Proceq SA 21 Notes...

Page 24: ...4 korp 2 lit A Office 410 197374 St Petersburg Russia Phone Fax 7 812 448 35 00 info russia proceq com Proceq Middle East P O Box 8365 SAIF Zone Sharjah United Arab Emirates Phone 971 6 557 8505 Fax 9...

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