ASODUR-K4031 Prüfung des lösemittelfreien Epoxidharzklebers gem. DIN EN 1504-4 GB.pdf
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<h1>ASODUR-K4031 Prüfung des lösemittelfreien Epoxidharzklebers gem. DIN EN 1504-4 GB.pdf</h1> <p>Kiwa GmbH <br />Polymer Institut <br />Quellenstraße 3 <br />D-65439 Flörsheim-Wicker <br />Tel. +49 (0)61 45 - 5 97 10 <br />www.kiwa.de</p> <p>Test report <br />P 10430 <br />Testing order:</p> <p>Testing of the solvent-free epoxy-resin adhesive <br />ASODUR-K4031 <br />in accordance with the test programme in <br />accordance with DIN EN 1504-4 <br />“Products and systems for the protection and <br />repair of concrete structures – Structural <br />bonding”</p> <p>Customer:</p> <p>SCHOMBURG GmbH & Co. KG <br />Aquafinstr. 2-8 <br />D-32760 Detmold</p> <p>Person in charge:</p> <p>Dipl.-Ing. (FH) N. Machill <br />B. Eng. (FH) S. Schmidt</p> <p>Period of testing:</p> <p>September 2016 to June 2017</p> <p>Date of the test report:</p> <p>2017-06-08</p> <p>This test report comprises:</p> <p>19 pages including Annex 1 <br />1 enclosure of 2 pages</p> <p>The test results exclusively refer to the tested materials. <br />The publication of the test report in extracts and references to tests for advertising purposes require our written agreement in each single case.</p> <p>Page - 2 - of 19 pages to the test report P 10430 <br />dated 2017-06-08</p> <p>CONTENTS</p> <p>1</p> <p>SUBJECT ........................................................................................................................... 3</p> <p>2</p> <p>RECEIPT OF SAMPLES ................................................................................................. 4</p> <p>3</p> <p>PREPARATION OF THE TEST SPECIMENS ............................................................ 4</p> <p>3.1</p> <p>Mixing of the adhesive....................................................................................................... 4</p> <p>3.2</p> <p>Preparation of the test specimens .................................................................................... 4</p> <p>3.3</p> <p>Preparation of the composite specimens ......................................................................... 5</p> <p>4</p> <p>TESTS................................................................................................................................. 5</p> <p>4.1</p> <p>Compressive strength ........................................................................................................ 5</p> <p>4.2</p> <p>Shear strength .................................................................................................................... 6</p> <p>4.3</p> <p>Open time ........................................................................................................................... 7</p> <p>4.4</p> <p>Pot life ................................................................................................................................. 8</p> <p>4.5</p> <p>Modulus of elasticity in compression ............................................................................... 9</p> <p>4.6</p> <p>Glass transition temperature ............................................................................................ 9</p> <p>4.7</p> <p>Coefficient of thermal expansion ................................................................................... 10</p> <p>4.8</p> <p>Total shrinkage of structural bonding agents (alternative test method) .................... 12</p> <p>4.9</p> <p>Usability and hardening under special ambient conditions ........................................ 13</p> <p>4.10</p> <p>Adhesion ........................................................................................................................... 14</p> <p>4.11 Durability (heat and humidity) ...................................................................................... 15 <br />4.11.1 Thermal cycling ............................................................................................................... 16 <br />4.11.2 Humid environment ........................................................................................................ 17 <br />5</p> <p>SUMMARY ...................................................................................................................... 18</p> <p>Enclosure</p> <p>Page - 3 - of 19 pages to the test report P 10430 <br />dated 2017-06-08</p> <p>1</p> <p>SUBJECT <br />The Schomburg GmbH & Co. KG, Detmold, ordered the Polymer Institut to carry out <br />tests on the solvent-free, two-component epoxy-resin adhesive <br />ASODUR-K4031 <br />from the test programme in accordance with EN 1504-4:2005 “Products and systems for <br />the protection and repair of concrete structures – Structural bonding”. <br />In agreement with the customer the following tests from the test programme have been <br />carried out: <br />Overview 1:</p> <p>Selected tests from the test programme of EN 1504-4</p> <p>Test</p> <p>Test specification</p> <p>Edition</p> <p>Compressive strength</p> <p>EN 12190</p> <p>1998</p> <p>Shear strength</p> <p>EN 12615</p> <p>1999</p> <p>Open time</p> <p>EN 12189</p> <p>1999</p> <p>EN ISO 9514</p> <p>2005</p> <p>Modulus of elasticity in compression</p> <p>EN 13412</p> <p>2006</p> <p>Glass transition temperature</p> <p>EN 12614</p> <p>2005</p> <p>Coefficient of thermal expansion</p> <p>EN 1770</p> <p>1998</p> <p>EN 12617-3</p> <p>2002</p> <p>EN 12636</p> <p>1999</p> <p>EN 13733</p> <p>2002</p> <p>Pot life</p> <p>Total shrinkage of structural bonding agents <br />(alternative test method) <br />Usability and hardening under special <br />ambient conditions <br />- Low temperature (10°C) <br />- Wet substrate <br />Adhesion <br />Durability (heat and humidity) <br />- Thermal cycling <br />- Humid environment</p> <p>Page - 4 - of 19 pages to the test report P 10430 <br />dated 2017-06-08</p> <p>2</p> <p>RECEIPT OF SAMPLES <br />The samples given in the following overview were delivered to the Polymer Institut. <br />Overview 2: <br />Pos.</p> <p>Material</p> <p>1</p> <p>ASODUR-K4031</p> <p>2</p> <p>3</p> <p>Receipt of samples <br />Component</p> <p>Batch</p> <p>Quantity <br />[kg]</p> <p>A</p> <p>206409</p> <p>3 x 4.0</p> <p>B</p> <p>206409</p> <p>3 x 2.0</p> <p>PREPARATION OF THE TEST SPECIMENS <br />The mixing of the adhesive as well as the preparation of the test specimens has been <br />carried out at standard conditions in accordance with EN 23270.</p> <p>3.1</p> <p>Mixing of the adhesive <br />The mixing of the adhesive has been carried out in accordance with the mixing ratio <br />given in the following table. <br />Overview 3:</p> <p>Mixing ratio of the components</p> <p>Material <br />ASODUR-K4031</p> <p>Mixing ratio <br />Component A</p> <p>Component B</p> <p>2</p> <p>1</p> <p>The material was dosed in the given mixing ratio and manually mixed by means of a <br />spatula for approx. 3 min until homogenised.</p> <p>3.2</p> <p>Preparation of the test specimens <br />Immediately after mixing, the adhesive was filled into prism moulds and stripped after a <br />hardening time of 24 hours. Six prisms with the dimensions 40 mm x 40 mm x 160 mm <br />were prepared for testing the compressive strength and the modulus of elasticity. <br />For testing the compressive strength cubes with an edge length of 40 mm were sawed <br />from the prisms by means of wet sawing.</p> <p>Page - 5 - of 19 pages to the test report P 10430 <br />dated 2017-06-08</p> <p>3.3</p> <p>Preparation of the composite specimens <br />First, prisms with the dimensions 40 mm x 40 mm x 160 mm and cubes with the <br />dimensions 100 mm x 100 mm x 100 mm were sawed from concrete slabs of type MC <br />(0.40) in accordance with EN 1766:2017 by means of wet sawing. <br />Some of the prisms were cut through the centre or at an angle of 60° to the prism axis, so <br />that two identical prism halves were produced. <br />Subsequently, the surfaces of the prisms and cubes to be bonded were roughened by <br />means of blast-cleaning and cleaned under running water by means of a brush. <br />The preparation and storage of the bonded composite specimens is given in the respective <br />sub-clause of the test.</p> <p>4</p> <p>TESTS <br />The tests have been carried out at standard conditions in accordance with EN 23270, if <br />not indicated otherwise.</p> <p>4.1</p> <p>Compressive strength <br />The compressive strength was determined in accordance with EN 12190 “Products and <br />systems for the protection and repair of concrete structures – Test methods – <br />Determination of compressive strength of repair mortar”. <br />Table 1:</p> <p>Bulk density and compressive strength</p> <p>Test specimen <br />No.</p> <p>Bulk density <br />[kg/dm³]</p> <p>Compressive strength <br />[MPa]</p> <p>1</p> <p>1.68</p> <p>73.2</p> <p>2</p> <p>1.69</p> <p>69.1</p> <p>3</p> <p>1.70</p> <p>71.4</p> <p>4</p> <p>1.69</p> <p>69.6</p> <p>5</p> <p>1.70</p> <p>71.3</p> <p>6</p> <p>1.69</p> <p>70.5</p> <p>Mean value</p> <p>1.69</p> <p>71.0*</p> <p>* rounded to 0.5 MPa</p> <p>Page - 6 - of 19 pages to the test report P 10430 <br />dated 2017-06-08</p> <p>4.2</p> <p>Shear strength <br />The compression shear strength of the compound hardened concrete – hardened concrete <br />was determined in accordance with DIN EN 12615 “Products and systems for the <br />protection and repair of concrete structures – Test methods – Determination of slant <br />shear strength”. <br />Preparation of the test prisms <br />1. Pre-storage (dry surface): <br />The prism halves with an angle of = 60° to the prism axis have been stored <br />for 48 h at a temperature of (21 2)°C and relative humidity of (60 10) % r. h. <br />2. Preparation: <br />The adhesive is applied 5 min. after mixing of the components in the specified film <br />thickness of 1 to 2 mm. Directly after application of the adhesive the prism halves <br />were compressed by means of a clamp frame and stored for 24 h. <br />3. Storage: <br />After 24 hours the test specimens were taken from the clamp frame and hardened for <br />the duration of 7 days at an air temperature of (21 2)°C. <br />The determined measuring values for breaking load, compression shear strength as well <br />as the adhesive bond are summarized in the following table. <br />Table 2:</p> <p>Breaking load, compression shear strength and type of failure</p> <p>Test specimen</p> <p>Test prisms <br />( = 60°) <br />Mean value <br />Reference <br />test specimens <br />Mean value</p> <p>[kN] <br />82.4</p> <p>Compression <br />shear strength <br />[MPa] <br />22.3</p> <p>A <br />50</p> <p>79.5</p> <p>21.5</p> <p>100</p> <p>-</p> <p>-</p> <p>-</p> <p>86.6</p> <p>23.4</p> <p>100</p> <p>-</p> <p>-</p> <p>-</p> <p>82.8</p> <p>22.4</p> <p>81.0</p> <p>21.9</p> <p>100</p> <p>-</p> <p>-</p> <p>-</p> <p>91.6</p> <p>24.8</p> <p>100</p> <p>-</p> <p>-</p> <p>-</p> <p>94.5</p> <p>25.6</p> <p>100</p> <p>-</p> <p>-</p> <p>-</p> <p>89.0</p> <p>24.1</p> <p>Breaking load</p> <p>Type of failure <br />[%] <br />B <br />C <br />50</p> <p>D <br />-</p> <p>---</p> <p>Key: <br />A: Cohesion failure within one of the concrete substrates <br />B: Adhesion failure on one of the interfaces adhesive – concrete <br />C: Cohesion failure in the adhesive layer <br />D: Adhesion failure on both interfaces adhesive – concrete</p> <p>---</p> <p>Page - 7 - of 19 pages to the test report P 10430 <br />dated 2017-06-08</p> <p>4.3</p> <p>Open time <br />The open time was determined in accordance with EN 12189 “Products and systems for <br />the protection and repair of concrete structures – Test methods – Determination of open <br />time”. The open time is the maximum time interval between completion of the mixing <br />process of the adhesive and the bonding of the respective surfaces after which the failure <br />in the concrete occurs. <br />Preparation of the test prisms <br />1. Pre-storage: <br />The prism halves have been stored for 48 h at a temperature of (21 2)°C and <br />relative humidity of (60 10) % r. h. <br />2. Preparation: <br />The adhesive is applied on one prism half 10 min. after mixing of the components in <br />the specified film thickness of approx. 2 mm. <br />After 40, 55, 70, 85, 100 and 115 min. both of the prism halves were joined and <br />loaded with a clamping force of (320 ± 20) N until testing. <br />3. Storage: <br />The test specimens have been stored in the clamping apparatus for the duration of 7 <br />days at an air temperature of (21 2)°C and relative humidity of (60 10) % r. h. <br />Test and result: <br />During the four point bending test after 7 d the vertical load was applied on the test <br />specimens clamped in the clamping apparatus until failure by means of a traverse <br />distributing the load. The open time results as soon as the failure occurs in the adhesive <br />joint but not in the concrete. <br />Table 3:</p> <p>Breaking load and type of failure <br />Type of failure / failure level <br />[%] <br />A <br />B <br />100 <br />-</p> <p>Time period <br />after mixing</p> <p>Breaking load</p> <p>1</p> <p>[min] <br />40</p> <p>[kN] <br />2.85</p> <p>2</p> <p>55</p> <p>2.78</p> <p>100</p> <p>-</p> <p>3</p> <p>70</p> <p>2.16</p> <p>100</p> <p>-</p> <p>4</p> <p>85</p> <p>2.27</p> <p>100</p> <p>-</p> <p>5</p> <p>100</p> <p>2.12</p> <p>100</p> <p>-</p> <p>6</p> <p>115</p> <p>2.22</p> <p>60</p> <p>40</p> <p>Test piece <br />No.</p> <p>Key: <br />A: <br />Cohesion failure concrete <br />B: <br />Adhesion failure between adhesive and concrete</p> <p>The open time is 100 min.</p> <p>Page - 8 - of 19 pages to the test report P 10430 <br />dated 2017-06-08</p> <p>4.4</p> <p>Pot life <br />The pot life was determined based on EN ISO 9514:07-2005 “Paints and varnishes – <br />Determination of the pot life of multicomponent coating systems – Preparation and <br />conditioning of samples and guidelines for testing” on the material Kemko 068 in <br />compliance with the following test conditions: <br />Test device: <br />Evaluation: <br />Measuring interval: <br />Homogenisation: <br />Test volume: <br />Temperature development: <br />Number of determinations:</p> <p>OMB-DAQ-56, Omega with thermal element Fe-CuNi <br />Dasy-Lab 6.0 - Software <br />10 s <br />1 min mixed with wooden spatula <br />100 cm³/ can diameter 6,5 cm; deviating from the standard <br />Adiabatic, in the thermally insulated reactor <br />2</p> <p>The following parameters were determined: <br /> Pot life <br />Time between the mixing at the respective start/initial temperature and reaching an <br />increase of 15 K <br /> Reaction time <br />Interval until reaching the maximum temperature (Tmax) of the mixture <br /> Maximum temperature of the mixture <br />The determined pot life is a laboratory value, which can deviate from the actual <br />processing time. The determined single (SV) and mean values (MV) are given in the <br />following table, the temperature/time diagram is given in figures 1 to 3 of the enclosure. <br />Table 4:</p> <p>Pot life</p> <p>Start <br />temperature</p> <p>Pot life <br />[min]</p> <p>Maximum <br />temperature <br />[°C] <br />SV <br />MV</p> <p>[°C]</p> <p>SV</p> <p>MV</p> <p>10</p> <p>47 ; 50</p> <p>48</p> <p>39 ; 39</p> <p>21</p> <p>45 ; 44</p> <p>44</p> <p>30</p> <p>23 ; 22</p> <p>23</p> <p>SV = Single value / MV = Mean value</p> <p>Reaction time <br />[min] <br />SV</p> <p>MV</p> <p>39</p> <p>119 ; 125</p> <p>122</p> <p>47 ; 46</p> <p>47</p> <p>92 ; 90</p> <p>91</p> <p>70 ; 72</p> <p>71</p> <p>51 ; 51</p> <p>51</p> <p>Page - 9 - of 19 pages to the test report P 10430 <br />dated 2017-06-08</p> <p>4.5</p> <p>Modulus of elasticity in compression <br />The modulus of static elasticity was determined in accordance with EN 13412 “Products <br />and systems for the protection and repair of concrete structures – Test methods – <br />Determination of modulus of elasticity in compression”. <br />Parameters: <br />test machine: <br />loading rate: <br />displacement transducer: <br />upper test stress:</p> <p>Schenk-Trebel 600 kN test press <br />10 N/mm²/s <br />DD1, measuring length 100 mm <br />14 N/mm²</p> <p>The results are given in the following table. <br />Table 5:</p> <p>Modulus of static elasticity in compression</p> <p>Test piece <br />No. <br />1 <br />2 <br />3</p> <p>Stress <br />[MPa]</p> <p>Compression <br />[-]</p> <p>23,13</p> <p>0,617</p> <p>0,62</p> <p>0,133</p> <p>23,13</p> <p>0,470</p> <p>0,62</p> <p>0,053</p> <p>23,13</p> <p>0,519</p> <p>0,62</p> <p>0,072</p> <p>Modulus of e * <br />[MPa]</p> <p>Mean value:</p> <p>4.700 <br />5.400 <br />5.000 <br />5.000</p> <p>* Rounded to 100 N/mm²</p> <p>4.6</p> <p>Glass transition temperature <br />The glass transition temperature of the hardened material was determined at an age of 7d <br />in accordance with EN 12614 “Products and systems for the protection and repair of <br />concrete structures – Test methods – Determination of glass transition temperatures of <br />polymers” in compliance with the following test conditions: <br />device: <br />heating rate: <br />cooling: <br />sample holder: <br />initial weight of the sample: <br />atmosphere:</p> <p>DSC 200 by Netzsch Gerätebau GmbH <br />-10 °C to 150°C with 20 K/min <br />free cooling <br />aluminium cup <br />18.6 mg <br />N2, pureness 4.0, 50ml/min</p> <p>Page - 10 - of 19 pages to the test report P 10430 <br />dated 2017-06-08</p> <p>The result is given as the centre temperature in the following table. <br />Table 6:</p> <p>Figure 1:</p> <p>4.7</p> <p>Glass transition temperature after 7d of hardening at 21 2 °C <br />Material</p> <p>Glass transition temperature [°C]</p> <p>ASODUR-K4031</p> <p>40.7</p> <p>Glass transition temperature</p> <p>Coefficient of thermal expansion <br />The coefficient of thermal expansion t was determined using the pushrod dilatometer by <br />the Netzsch company in accordance with EN 1770 “Products and systems for the <br />protection and repair of concrete structures – Test methods – Determination of the <br />coefficient of thermal expansion” at an age of 7 d after storage B. <br />Information on the horizontal pushrod dilatometer DIL 402 ES: <br />sample holder: <br />quartz <br />push rod: <br />quartz <br />contact pressure: <br />5 cN <br />inductive displacement transducer <br />measurement L: <br />temperature measuring range: -40 °C to +100 °C <br />atmosphere: <br />nitrogen</p> <p>Page - 11 - of 19 pages to the test report P 10430 <br />dated 2017-06-08</p> <p>For this, a test specimen 5 mm x 5 mm x 50 mm was cut from a prism. Subsequently, the <br />measurement was carried out. <br />The result is given in the following table and figure. <br />Table 7:</p> <p>Coefficient of thermal expansion after 7 d of hardening at 21 2 °C <br />-20.0 ≤ T ≤ +23.0 °C</p> <p>Coefficient of thermal expansion t <br />36.9 x 10-6 /K</p> <p>-20.0 ≤ T ≤ +40.0 °C</p> <p>41.7 x 10-6 /K</p> <p>+23.0 ≤ T ≤ +40.0 °C</p> <p>53.8 x 10-6 /K</p> <p>Temperature range</p> <p>Figure 2: Coefficient of thermal expansion</p> <p>Page - 12 - of 19 pages to the test report P 10430 <br />dated 2017-06-08</p> <p>4.8</p> <p>Total shrinkage of structural bonding agents (alternative test method) <br />The total shrinkage of the adhesive was determined in accordance with EN 12617-3 <br />“Products and systems for the protection and repair of concrete structures – Test <br />methods – Part 3: Determination of early age linear shrinkage for structural bonding <br />agents”. <br />Directly after mixing, the adhesive was filled into a steel mould in accordance with figure <br />1 of the standard mentioned above, the front surfaces were declamped from the latching <br />and have been hardened for 48 hours at standard conditions in accordance with DIN EN <br />23270. During the hardening time the change in length of the adhesive as well as the <br />temperature have been recorded by means of sensors. <br />The graphic illustration of the results of shrinkage over time as well as the temperature <br />profile are given in the following figure.</p> <p>Figure 3: Results of shrinkage over time <br />The total shrinkage at the end of the test was 0.072 %.</p> <p>Page - 13 - of 19 pages to the test report P 10430 <br />dated 2017-06-08</p> <p>4.9</p> <p>Usability and hardening under special ambient conditions <br />The test of the usability and hardening under special ambient conditions for the test <br />method “hardened concrete – hardened concrete” has been carried out in accordance with <br />EN 12636 “Products and systems for the protection and repair of concrete structures – <br />Test methods – Determination of the adhesion concrete to concrete”. <br />Preparation of the composite specimens <br />1. Pre-storage: <br /> Wet substrate <br />The test specimens have been stored for the duration of 48 h under water at room <br />temperature. Prior to application of the adhesive the surface to be bonded was <br />put up in vertical position for the duration of 15 min at a temperature of (21 ± 2) <br />°C and relative humidity of (60 ± 10) %, in order to drain off the free water. <br /> Limit temperature 10°C <br />The prism halves have been stored for 48 h at a temperature of 10°C and relative <br />humidity of (75 10) % r. h. <br />2. Preparation: <br />The adhesive is applied 5 min. after mixing of the components. Directly after the <br />application of the adhesive both of the prism halves were compressed by means of a <br />clamp frame, so that an adhesive layer of approx. 1 – 2 mm thickness was achieved. <br />3. Storage: <br />The test specimens have been stored and hardened without clamp frame for the <br />duration of 7 days at a temperature of (21 2)°C. <br />Test and result: <br />After 7 d, during the four point bending test a vertical load is applied until failure by <br />means of a traverse distributing the load. <br />The following tables list the determined measuring values for the breaking load as well as <br />the type of failure. <br />Table 8: <br />Test piece <br />No.</p> <p>Test method hardened concrete-hardened concrete – Wet surface <br />Breaking <br />load</p> <p>[min]</p> <p>[kN]</p> <p>A</p> <p>B</p> <p>C</p> <p>2.71</p> <p>-</p> <p>100*</p> <p>-</p> <p>2.80</p> <p>-</p> <p>100*</p> <p>-</p> <p>2.19</p> <p>-</p> <p>100</p> <p>-</p> <p>1 <br />2</p> <p>Type of failure <br />[%]</p> <p>Adhering <br />after mixing</p> <p>5</p> <p>3 <br />Mean value <br />* Concrete failure near the surface</p> <p>2.7</p> <p>Page - 14 - of 19 pages to the test report P 10430 <br />dated 2017-06-08</p> <p>Table 9: Test method hardened concrete-hardened concrete – Limit temperature 10 °C <br />Test piece <br />No.</p> <p>Breaking <br />load</p> <p>[min]</p> <p>[kN]</p> <p>A</p> <p>B</p> <p>C</p> <p>1.44</p> <p>-</p> <p>100</p> <p>-</p> <p>2.14</p> <p>-</p> <p>100</p> <p>-</p> <p>2.53</p> <p>-</p> <p>100</p> <p>-</p> <p>1 <br />2 <br />3 <br />Mean value</p> <p>Type of failure <br />[%]</p> <p>Adhering <br />after mixing</p> <p>5</p> <p>2.0</p> <p>Key: <br />A: Cohesion failure in the adhesive layer <br />B: Cohesion failure in the concrete <br />C: Adhesion failure between adhesive and concrete</p> <p>4.10</p> <p>Adhesion <br />The test of the adhesion for the test method “hardened concrete –hardened concrete” has <br />been carried out in accordance with EN 12636 “Products and systems for the protection <br />and repair of concrete structures – Test methods – Determination of the adhesion <br />concrete to concrete”. <br />Preparation of the composite specimens <br />1. Pre-storage: <br />The prism halves have been stored for 48 h at a temperature of (21 2)°C and <br />relative humidity of (60 10) % r. h. <br />2. Preparation: <br />The adhesive is applied 5 min. after mixing of the components. Directly after the <br />application of the adhesive both of the prism halves were compressed by means of a <br />clamp frame, so that an adhesive layer of approx. 1 – 2 mm thickness was achieved. <br />3. Storage: <br />The test specimens have been stored for the duration of 7 days at a temperature of <br />(21 2)°C and relative humidity of (60 10) % r. h. <br />Test and result: <br />After 7 d, during the four point bending test a vertical load is applied until failure by <br />means of a traverse distributing the load. <br />The following tables list the determined measuring values for the breaking load as well as <br />the type of failure.</p> <p>Page - 15 - of 19 pages to the test report P 10430 <br />dated 2017-06-08</p> <p>Table 10:</p> <p>Breaking load and type of failure</p> <p>Test piece <br />No.</p> <p>Breaking <br />load</p> <p>[min]</p> <p>[kN]</p> <p>A</p> <p>B</p> <p>C</p> <p>3.16</p> <p>-</p> <p>100</p> <p>-</p> <p>3.35</p> <p>-</p> <p>100</p> <p>-</p> <p>2.83</p> <p>-</p> <p>100</p> <p>-</p> <p>1 <br />2</p> <p>Type of failure <br />[%]</p> <p>Adhering <br />after mixing</p> <p>5</p> <p>3 <br />Mean value</p> <p>3.1</p> <p>Key: <br />A: Cohesion failure in the adhesive layer <br />B: Cohesion failure concrete <br />C: Adhesion failure between adhesive and concrete</p> <p>4.11</p> <p>Durability (heat and humidity) <br />The durability (heat and humidity) was determined in accordance with EN 13733 <br />“Products and systems for the protection and repair of concrete structures – Test <br />methods; Determination of the durability of structural bonding” after thermal cycling <br />and storage in humid environment. <br />Preparation of the composite specimens <br />1. Pre-storage: <br />The concrete cubes have been stored for 48 h at a temperature of (21 2)°C and <br />relative humidity of (60 10) % r. h. <br />2. Preparation: <br />The adhesive is applied 5 min. after mixing of the components in the specified film <br />thickness of approx. 1 mm on one surface of two cubes in each case. Subsequently, <br />the composite specimens were joined. <br />3. Storage: <br />The composite specimens have been stored for the duration of 28 days at a <br />temperature of (21 2)°C and relative humidity of (60 10) % r. h. <br />Carrying out the test <br />The test has been carried out with the following parameters: <br />5000 kN test press by the MAN company in accordance with <br /> Test machine: <br />EN 12390-4 <br />In accordance with figure 1a and 1b of EN 13733 <br /> Test apparatus: <br /></p> <p>Test rate:</p> <p>(60 ± 20) kN/min</p> <p>Page - 16 - of 19 pages to the test report P 10430 <br />dated 2017-06-08</p> <p>4.11.1</p> <p>Thermal cycling <br />The exposure has been carried out in accordance with sub-clause 5.1 of the standard <br />mentioned above in a programmable climate chamber with the following cycle: <br /> <br /> <br /> <br /></p> <p>333 minutes storage in air at T = (-25±2)° C <br />27 minutes heating in air at T = (+55±2)° C <br />333 minutes storage in air at T = (+55±2)° C <br />27 minutes cooling in air at T = (-25±2)° C</p> <p>The cycle mentioned above has been repeated 50 times. Subsequently, the test specimens <br />have been reconditioned for a minimum of 24 hours in the climate (21±2)° C/(60±10)% r. <br />h. (TWB01-3). <br />The conditioning for comparison purposes has been carried out in accordance with EN <br />13733 sub-clause 6.1 “General” in the climate (21±2)° C/(60±10% r. h.) (reference 1-3). <br />Table 11:</p> <p>Breaking load and type of failure – Thermal cycling <br />Compression <br />shear load</p> <p>Shear stress</p> <p>[kN]</p> <p>[MPa]</p> <p>left</p> <p>right</p> <p>TWBO 1</p> <p>16.2</p> <p>0.8</p> <p>-</p> <p>70 AK / 30 KB</p> <p>TWBO 2</p> <p>83.2</p> <p>4.2</p> <p>60 AK / 40 KB</p> <p>100 AK</p> <p>TWBO 3</p> <p>82.5</p> <p>4.1</p> <p>-</p> <p>50 AK / 50 KB</p> <p>Test piece</p> <p>mean value:</p> <p>Failure pattern <br />[%]</p> <p>3.0</p> <p>---</p> <p>Reference 1</p> <p>201.0</p> <p>10.0</p> <p>10 AK / 90 KB</p> <p>20 AK / 80 KB</p> <p>Reference 2</p> <p>100.4</p> <p>5.0</p> <p>-</p> <p>10 AK / 90 KB</p> <p>Reference 3</p> <p>210.1</p> <p>10.5</p> <p>10 AK / 90 KB</p> <p>10 AK / 90 KB</p> <p>mean value:</p> <p>12.8</p> <p>Key: <br />AK: Adhesion failure between adhesive and concrete <br />KK: Cohesion failure adhesive <br />KB: Cohesion failure concrete</p> <p>---</p> <p>Page - 17 - of 19 pages to the test report P 10430 <br />dated 2017-06-08</p> <p>4.11.2</p> <p>Humid environment <br />The exposure has been carried out in accordance with EN 13733 sub-clause 5.2 “humid <br />environment” in a climate chamber with the following parameters: <br /> <br /></p> <p>climate: <br />duration:</p> <p>(+40±2)°C / (95±5) % r. h. <br />6 months</p> <p>Subsequently, each test specimen has been reconditioned for a minimum of 24 hours in <br />the climate (21±2)° C/(60±10% r. h.). After the exposure to the climate mentioned above <br />the test of the shear stress has been carried out. <br />The conditioning for reference purposes has been carried out in accordance with EN <br />13733 sub-clause 6.1 “General” in the climate (21±2)°C / (60±10% r. h.). <br />Table 12:</p> <p>Breaking load and type of failure – Humid environment <br />Failure pattern <br />[%]</p> <p>Compression <br />shear load</p> <p>Shear stress</p> <p>[kN]</p> <p>[MPa]</p> <p>Left</p> <p>Right</p> <p>FWU 1</p> <p>133.4</p> <p>6.7</p> <p>-</p> <p>10 KK / 90 KB</p> <p>FWU 2</p> <p>203.3</p> <p>10.2</p> <p>100 KB</p> <p>20 AK / 80 KB</p> <p>FWU 3</p> <p>221.1</p> <p>11.1</p> <p>100 KB</p> <p>40 AK / 60 KB</p> <p>Test piece</p> <p>mean value:</p> <p>9.3</p> <p>--10 AK / 90 KB 20 AK / 80 KB</p> <p>Reference 1</p> <p>203.9</p> <p>10.2</p> <p>Reference 2</p> <p>161.4</p> <p>8.1</p> <p>100 KB</p> <p>100 KB</p> <p>Reference 3</p> <p>171.4</p> <p>8.6</p> <p>100 KB</p> <p>100 KB</p> <p>mean value:</p> <p>9.0</p> <p>Key: <br />AK: Adhesion failure between adhesive and concrete <br />KK: Cohesion failure adhesive <br />KB: Cohesion failure concrete</p> <p>---</p> <p>Page - 18 - of 19 pages to the test report P 10430 <br />dated 2017-06-08</p> <p>5</p> <p>SUMMARY <br />The Schomburg GmbH & Co. KG, Detmold, ordered the Polymer Institut to carry out <br />tests on the solvent-free, two-component epoxy-resin adhesive <br />ASODUR-K 4031 <br />from the test programme in accordance with EN 1504-4:2005 “Products and systems for <br />the protection and repair of concrete structures – Structural bonding”. <br />A summary of the test results and a comparison to the requirements of EN 1504-4 is <br />given in Annex 1.</p> <p>Flörsheim-Wicker, 2017-06-08 <br />The assistant head of the institute</p> <p>The person in charge</p> <p>Dipl.-Ing. (FH) N. Machill</p> <p>B. Eng. (FH) S. Schmidt</p> <p>Page - 19 - of 19 pages to the test report P 10430 <br />dated 2017-06-08</p> <p>Annex 1 <br />Comparison of the results with the requirements <br />of EN 1504-4, Table 3.2 <br />Performance characteristic</p> <p>Unit</p> <p>Result</p> <p>Requirement</p> <p>Compressive strength</p> <p>[MPa]</p> <p>71.0</p> <p>≥ 30</p> <p>Shear strength</p> <p>[MPa]</p> <p>22.4</p> <p>≥6</p> <p>Open time</p> <p>[min]</p> <p>100</p> <p>Declared value <br /> 20 %</p> <p>Pot life <br /> Start temperature: <br />10 °C <br />21 °C <br />30 °C</p> <p>[min] <br />48 <br />44 <br />23</p> <p>Declared value</p> <p>Modulus of elasticity in compression</p> <p>[MPa]</p> <p>5,000</p> <p>≥ 2,000</p> <p>[°C]</p> <p>40.7</p> <p>≥ 40</p> <p>36.9 x 10-6 <br />41.7 x 10-6 <br />53.8 x 10-6</p> <p>αT ≤ 100 x 10-6</p> <p>[%]</p> <p>0.072</p> <p>ssoll ≤ 0,1 %</p> <p>Usability and hardening under special <br />ambient conditions <br />- Wet substrate</p> <p>-</p> <p>- Limit temperature 10°C</p> <p>-</p> <p>100 % failure in <br />the concrete <br />100 % failure <br />in the concrete</p> <p>Failure in the concrete</p> <p>Adhesion</p> <p>-</p> <p>100 % failure <br />in the concrete</p> <p>Cohesion failure in the <br />concrete</p> <p>- Thermal cycling</p> <p>[MPa]</p> <p>3.0</p> <p>- Humid environment</p> <p>[MPa]</p> <p>9.3</p> <p>Glass transition temperature <br />Coefficient of thermal expansion <br /> Temperature range: <br />-20,0 ≤ T ≤ +23,0 °C <br />-20,0 ≤ T ≤ +40,0 °C <br />+23,0 ≤ T ≤ +40,0 °C <br />Total shrinkage of structural bonding agents</p> <p>[1/°C]</p> <p>Durability <br />(Heat and humidity) <br />The <br />compression <br />shear load at failure <br />shall not be lower than <br />the tensile strength of <br />the <br />hardened concrete. *</p> <p>* Surface tensile strength in accordance with EN 1766 for the reference concrete type <br />MC (0,40) = 3,0 N/mm²</p> <p>Page 1 of the enclosure to the test report P 10430</p> <p>Figure 1:</p> <p>Processability at a start temperature of 10°C</p> <p>Figure 2:</p> <p>Processability at a start temperature of 21°C</p> <p>Page 2 of the enclosure to the test report P 10430</p> <p>Figure 3:</p> <p>Processability at a start temperature of 30°C</p>
