PRESTRESSING STRAND. NEDRI Product Range: Prestressing strand. Type. Relaxation. Surface. Indentation. Coil weight. Coil sizes.

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1 PRESTRESSING STRAND NEDRI Product Range: Prestressing strand NEDRI s prestressing steel guarantees the durability and quality of prefab contruction, infrastructural and large industrial projects on-shore and off-shore, as years of satisfied customers can testify. Range of dimensions 7 wires: ø mm 3 wires: ø mm Type Relaxation Surface Indentation Coil weight Coil sizes Cut length thermo-mechanical heat treated (stabilised) extra low relaxation plain or indented according to Euronorm pren or as agreed kg Inside diameter : mm External diameter : mm Height : mm We deliver strand in cut length: mm If you need strand, which is not included in our product range, please do not hesitate to contact us. We will try to comply with your specifications regarding special dimensions, properties or packaging. Our technicians will be glad to help you find a technical and economic solution for your needs. NEDRI Spanstaal BV is ISO certified by Lloyd s Register Quality Assurance and is a member of ESIS: European Stress Information Service. Ask for our other Product brochures as well

2 Our prestressing strands are supplied in accordance with the following product certificates Technical requirements for Netherlands: NEN 3868 Product certificate K7191: plain 7-wire FeP 1860: ø 6.9 ø 15.7 mm Product certificate K 7191: indented 7-wire FeP 1860: ø 6.9 ø 12.9 mm Product certificate K 7192: plain 3-wire FeP 1860: ø 7.5 mm Germany: DIN 4227 Belgium: NBN Zulassungs number wire Strand, plain St 1570/ : ø 6.9 ø 15.7 mm Strand, plain 3-wire FeP 1860: ø 6.9 ø 7.5 mm 7-wire FeP 1860: ø 9.3 ø 15.7 mm 7-wire FeP 1770: ø 15.2 ø 15.7 mm 7-wire FeP 2060: ø 7.0 mm France: Bulletin Officiel du Ministère de l Equipement, du Logement et des Transports Homologation number 20 REV.1 Strand, plain 7-wires FeP 1860: ø 9.3 ø 12.9 mm Homologation number 20 REV.3 Strand, plain 7-wires FeP 1770: ø 15.2 ø 15.7 mm Autorisation de Fourniture nr AF-P 4 / 89. Strand, plain 7-wire FeP 1860: ø 15.2 ø 15.7 mm Homologation number 26 REV.0 Plain. 3-wires FeP 2060: ø 5.2 mm Autorisation de Fourniture number AF-P 3 / 94. Strand, plain 7-wire FeP 2060: ø 6.85 mm Autorisation de Fourniture number AF-P 1 / 94. Strand, indented 7-wire FeP 1860: ø 9.3 ø 12.5 mm Italy : 006/09-CAP strands 9,3 15,7 mm FeP 1860 Poland : IBDiM AT ITB AT /2008 ITB Zetom certyficat 52/08 IBDiM Zetom Certyfikat 64/09 strands: 6,4mm 15,7 mm 7-wire strand 7-wire strands 9,3-15,7mm in FeP1770 and FeP1860. HDPE 12,5-15,7 mm 7-wire strands 9,3-15,7mm in FeP1770 and FeP1860. HDPE 12,5-15,7 mm Tsjech Republic: C / 68/ 69 Austria: GZ ST2-04. Z wire strands Y1770S7 7-wire strands Y1860S7 7 wire strand 9,3mm 15,7, Y1770S7 7 wire strand HDPE 9,3-15,7mm

3 Our prestressing strands are supplied in accordance with the following standards Technical requirements according to: pren 10138, part 3 Euronorm Prestressing steels: Strands Prestressing Steel BS 5896 ASQPE ASTM A 416 ASTM A 886 SIA 162 and SIA 162 / 1 ÖNORM B 4258 DiBT Zulassung Specification for: High Tensile Steel Wire And Strand For The Prestressing Of Concrete Prestressing steel (France) Standard specification for: Uncoated Seven- Wire Strand For Prestressed Concrete Standard specification for: Steel strand, indented, Seven- Wire Stress relieved for Prestressed Concrete Prestressing Steel (Switzerland) Prestresing steel (Austria) Prestressing steel (Germany) Delivery according to other standards or specifications is always possible

4 The mechanical properties or our prestressing strands are in accordance with various standards Nominal diameter mm Section mm 2 Nominal mass g/m 0.1% proof load kn 1 ) Tensile strength Breaking load K/N 1 ) Elongation Striction % Young s modulus K 3-w 5.2 FR w 5.2 FR w 6.9 BE w 7.5 NL w 6.9 GE ) w 6.9 NL w 7.0 EU w 9.0 EU w 9.3 GE ) w 9.3 NL w 11.0 GE ) w 11.0 EU w 12.5 GE ) w 12.5 NL w 12.8 SW ) w 12.9 GE ) w 12.9 NL w 15.2 USA ) w 15.2 NL w 15.3 GE ) w 15.5 SW w 15.7 GE 7-w 15.7 NL ) ): These values are characteristic values 2 ): This value is the 0,2% proof load 3 ): This value is the load at 1% total elongation The special properties of our prestressing steel strands are in accordance with different standards Type or test Requirement Remark Relaxation Fatigue Corrosion behaviour Tensile test <2% at a level of 0.7 x Tensile strength No rupture before 2 million cycles See a typical test result of a 7-wire 12.5 mm strand in the graph on the next pages Rupture after a meantime of more than 4 hours, with a minimum of 1.5 hours in the FIP corrosion test See the typical curve of a tensile test performed on a 7-wire 12.5 mm strand

5 Test type: Tensile test According to: NEN 3868 Nominal diameter : 12.5 mm Quality : 1860 Heatnumber : Coilnumber : BS813 Force (N) Load-extension diagram Elongation (%) Mechanical Properties Cross-sectional area Breaking load Tensile strength 0.1 % yield load 0.1 % yield strength 0.2 % yield load 0.3 % yield strength Elongation at max. load mm 2 kn kn kn %

6 Test type: Relaxation test According to: NEN 3868 Nominal diameter : 12.5 mm Quality : 1860 Heatnumber : Coilnumber : BS813 Initial load Duration of test Temperature Test parameters kn 1000 Hours 20 o C 10 Relaxation curve Loss of Tension in % 1 0,1 Normal Low 0, Time in min Relaxation Test results 1.61 % after 1000 h