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class="texte">Kerto® LVL (Laminated Veneer Lumber, gelamineerd fineerhout)<br> <br> <span class="sstitre">Productie</span><br> Finse naaldhoutstammen met een lengte van ongeveer 1.6m worden ontschorst, gestoomd en vervolgens geschild tot fineerbladen met een dikte van 3.2 mm (na persing 3mm). <br /><br /> Daaruit worden fineerbladen gesneden van gelijke breedte , aan de kopse stootvoegen worden afgeschuinde lasnaden gefreesd en aansluitend gedroogd. Na een gespecialiseerde sterktesortering worden de fineerbladen belijmd (fenolhars) en met verspringende stootvoegen in een continu proces op elkaar geschikt. De koude voorpersing wordt gevolgd door een warme napersing waardoor een homogene plaat ontstaat. <br /><br /> De Kerto® panelen met ee max. lengte van 23 m en een max. breedte van 2.4 m, worden vervolgens verzaagd tot de gewenste afmetingen. Standaard diktes (in mm): 27 / 33 / 39 / 45 / 51 / 57 / 63 / 75 / 90 <br /><br /> LVL wordt gefabriceerd in 2 types: <br /><br /> <b>Kerto®- S</b><br /> Uitsluitend samengesteld uit in de lengterichting geschikte fineren (balken) <br /><br /> <b>Kerto®- Q</b><br /> Voornamelijk samengesteld uit in de lengterichting geschikte fineren, doch met 20% dwars georiënteerde fineren (balken en platen) <br /><br /> Na fabricage is het vochtgehalte van Kerto® maximum 10-12% en worden Kerto® balken/panelen verpakt in een folie waardoor het vochtgehalte niet meer wijzigt tijdens het transport.<br /> Tijdens de ruwbouwfase Kerto® zodanig beschermen dat het vochtgehalte nauwelijks kan stijgen. <br /><br /> De Kerto® -productie dient een permanente controle te ondergaan volgens ISO 9001 <br /><br /> <span class="sstitre">Brandweerstand</span><br> <table border="0" cellspacing="0" cellpadding="0"> <tr> <td class="texte" valign="top" width="240px">De inbrandsnelheid van Kerto® - S bedraagt:</td> <td class="texte" valign="top">0.6 mm/min zijdelings van de balk<br /> 0.7 mm/min onderzijde van de balk</td> </tr> </table> <span class="sstitre">Warmteweerstand</span><br> »R = 0.15 W/m²K <br /><br /> <span class="sstitre">Volumieke massa</span> (10% vochtgehalte)<br> 480 daN/m³ <br /><br /> <span class="sstitre">Duurzaamheid en bahandeling</span><br> Kerto® kan onbehandeld gebruikt worden volgens Euro Code 5 gebruiksklasse 1 en 2. In gebruiksklasse 3 dient Kerto® behandeld te worden met de gepaste houtbeschermingsmiddelen. <br /><br /> <span class="sstitre">Karakteristieke waarden</span><br> <table border="1" cellpadding="0" cellspacing="0" bordercolor="#CCCCCC"> <tr class="sstitre"> <td width="150">&nbsp;</td> <td width="50">&nbsp;</td> <td width="160" align="center" class="gras">KERTO® -S (N/mm²)<br />Épaisseurs 27- 75 mm</td> <td width="160" align="center" class="gras">KERTO® -Q (N/mm²)<br />Épaisseurs 27- 69 mm</td> </tr> <tr> <td class="texte"><span class="gras">Buigsterkte</span><br />(referentiehoogte 300mm)</td> <td align="center" class="texte">&nbsp;</td> <td align="center" class="texte">&nbsp;</td> <td align="center" class="texte">&nbsp;</td> </tr> <tr> <td class="texte">Vlak evenwijdig aan de vezelrichting</td> <td align="center" class="texte">Fm,k</td> <td align="center" class="texte">50</td> <td align="center" class="texte">36</td> </tr> <tr> <td class="texte">Als balk,evenwijdig aan de vezelrichting</td> <td align="center" class="texte">Fm,k</td> <td align="center" class="texte">44</td> <td align="center" class="texte">32</td> </tr> <tr> <td class="texte"><span class="gras">Treksterkte</span><br />(referentie lengte 3000mm)</td> <td align="center" class="texte">&nbsp;</td> <td align="center" class="texte">&nbsp;</td> <td align="center" class="texte">&nbsp;</td> </tr> <tr> <td class="texte">Evenwijdig aan vezelrichting</td> <td align="center" class="texte">Ft,0,k</td> <td align="center" class="texte">35</td> <td align="center" class="texte">26</td> </tr> <tr> <td class="texte">Loodrecht op de vezelrichting</td> <td align="center" class="texte">Ft,90,k</td> <td align="center" class="texte">0.8</td> <td align="center" class="texte">6</td> </tr> <tr> <td class="texte"><span class="gras">Druksterkte</span></td> <td align="center" class="texte">&nbsp;</td> <td align="center" class="texte">&nbsp;</td> <td align="center" class="texte">&nbsp;</td> </tr> <tr> <td class="texte">Evenwijdig aan vezelrichting</td> <td align="center" class="texte">Fc,0,k</td> <td align="center" class="texte">35</td> <td align="center" class="texte">26</td> </tr> <tr> <td class="texte">Loodrecht op de vezelrichting</td> <td align="center" class="texte">Fc,90,k</td> <td align="center" class="texte">6</td> <td align="center" class="texte">9</td> </tr> <tr> <td class="texte"><span class="gras">Dwarskracht</span></td> <td align="center" class="texte">&nbsp;</td> <td align="center" class="texte">&nbsp;</td> <td align="center" class="texte">&nbsp;</td> </tr> <tr> <td class="texte">Bij buiging als balk</td> <td align="center" class="texte">Fv,k</td> <td align="center" class="texte">4.1</td> <td align="center" class="texte">4.5</td> </tr> <tr> <td class="texte">Bij buiging vlak</td> <td align="center" class="texte">Fv,k</td> <td align="center" class="texte">2.3</td> <td align="center" class="texte">1.3</td> </tr> <tr> <td class="texte"><span class="gras">Elasticiteitsmodulus</span><br />Evenwijdig met de vezels</td> <td align="center" class="texte">EO,mean</td> <td align="center" class="texte">13 500</td> <td align="center" class="texte">10 500</td> </tr> </table> </td> </tr> </table> </td> </tr> <tr> <td valign="top"><img src="../images/block.gif" width="5" height="20"></td> </tr> <tr> <td valign="top"><a href="#top" class="sublien">Top</a></td> </tr> <tr> <td valign="top"><img src="../images/block.gif" width="5" height="20"></td> </tr> </table></td> </tr> </table></td> </tr> </table></td> <td width="6" align="right" valign="bottom" bgcolor="#FFFFFF"><img src="../images/block.gif" width="6" height="5"></td> </tr> </table></td> </tr> <tr> <td align="right" valign="top" bgcolor="#FFFFFF"><img src="../images/block.gif" width="11" height="6"></td> </tr> <tr> <td valign="top"><img src="../images/block.gif" width="5" height="20"></td> </tr> </table></td> </tr> </table> </body> </html>