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Handleiding voor het leggen van gresbuizen - Keramo Steinzeug

Handleiding voor het leggen van gresbuizen - Keramo Steinzeug

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Inhoud<br />

INHOUD<br />

I GRES-begrippen ......................................................................................................... 1<br />

1. Begrippen uit de gresproduktie ............................................................................. 1<br />

2. Nominale diameter; ND (of DN) ............................................................................. 3<br />

3. Dichtingen .............................................................................................................. 3<br />

3.1. Rubberdichting KD ........................................................................................ 3<br />

3.2. Polyurethaandichting K ................................................................................. 4<br />

4. Norm <strong>voor</strong> <strong>gresbuizen</strong> : EN 295 ............................................................................ 4<br />

4.1. Sterkteklassen ............................................................................................... 4<br />

4.2. Verbindingssystemen .................................................................................... 5<br />

4.2.1. Verbindingssysteem F ......................................................................... 5<br />

4.2.2. Verbindingssysteem C ........................................................................ 5<br />

4.3. Produktcontrole, certificering, kwaliteitslabel ............................................... 5<br />

4.3.1. Interne produktcontrole ....................................................................... 5<br />

4.3.2. Externe produktcontrole...................................................................... 6<br />

4.3.3. Kwaliteitssysteem ISO 9002 ............................................................... 6<br />

4.4. Markering op de buizen, hulpstukken en pakketten .................................... 8<br />

4.5. EN 295 : delen en invoeringsdata ................................................................. 8<br />

II Eigenschappen............................................................................................................ 9<br />

1. Chemische bestendigheid ..................................................................................... 9<br />

1.1. Chemische bestendigheid <strong>van</strong> <strong>het</strong> gresmateriaal ........................................ 9<br />

1.2. Chemische bestendigheid <strong>van</strong> de dichtingen .............................................. 9<br />

2. Belangrijkste fysische kenmerken ....................................................................... 10<br />

3. Sterkte .................................................................................................................. 11<br />

3.1. Kruindrukweerstand .................................................................................... 11<br />

3.2. Kruindruktest ............................................................................................... 12<br />

3.3. Sterkte <strong>van</strong> aan elkaar gekleefde gresstukken ........................................... 12<br />

3.4. Weerstand tegen wisselende belasting (vermoeidheid) ............................. 13<br />

3.5. Langsbuigsterkte ......................................................................................... 13<br />

4. Waterdichtheid <strong>van</strong> greswand en verbindingen ................................................. 14<br />

4.1. Waterdichtheid <strong>van</strong> de wand bij buizen ...................................................... 14<br />

4.2. Waterdichtheid <strong>van</strong> de wand bij hulpstukken ............................................. 14<br />

4.3. Waterdichtheid <strong>van</strong> verbindingen ............................................................... 15<br />

5. Wandruwheid ....................................................................................................... 16<br />

6. Erosiebestendigheid ............................................................................................ 17<br />

6.1. Testen op slijtvastheid volgens EN 295 ...................................................... 17<br />

6.2. Testen op de invloed <strong>van</strong> hogedrukreiniging :<br />

Zwitserde norm SN 565012 ........................................................................ 17<br />

7. Maattolerantie ...................................................................................................... 18<br />

7.1. Afwijkingen <strong>van</strong> de rechtheid ...................................................................... 18<br />

7.2. Bodemgelijkheid .......................................................................................... 19<br />

III Inbouwbegrippen ...................................................................................................... 20<br />

Blz.<br />

I

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