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Nyheter

Ny revisor betong
2010-08-17

Nyhetsarkiv

 

Kalendarium

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Reinforcing steel website

SBS approved Manufacturers and Distributors

(only available in Swedish)

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Authorities
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Users of reinforcing steel like construction companies and manufacturers or prefabricated concrete elements
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Distributors
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Manufacturers of reinforcing steel a) potential customers  b) existing customers

Content of information:

Nordcert, its activities and background

Nordcert is the leading Swedish certification body in the field of structures for buildings.

We certify products, processes and persons and support education and training. The aim is to increase safety and reliability for structures raised in Sweden.

We use three certification marks owned by Nordcert:

Certification Authority for Steel in Building Structures for certification of reiniforcing and structural steels and components

Betong och Ballast Certifiering for aggregates, ready mixed concrete and precast concrete products

for certification of persons

Nordcert is a notified certification body with the number 1505 according to the Construction Products Directive, CPD.

 

We also administer a voluntary certification of steel building designers according to the SBI-mark owned by The Swedish Institute of Steel Construction.

 

The SBS and BBC marks have been used for decades.

 

Nordcert supports education of and training by influencing the programs for:

 

-    responsible persons for erection of steel structures, TR-stål

-    responsible persons for manufacturing of concrete connections, TR-svarm

-    welders of reinforcing steel

-    designers of steel structures

Contact information
Nordcerts product manager and auditor reinforcing steel: Jan Olof Johansson

phone: +46 8 34 92 40, mobile: +46 76 848 00 19, e-mail: janolof.johansson@nordcert.se

 

Nordcert AB

Upplandsgatan 34

S-113 28  Stockholm

Sweden

The Swedish infrastructure behind certification requirements

Three different authorities publish building rules:

 

Boverket, The National Board of Housing, Building and Planning issues rules for design,

execution and inspection of structures for houses.  The mostly used documents are BKR, BSK and BBK. See www.boverket.se

 

Vägverket, The Swedish Road Administration issues rules and documents specifying requirements for purchasing bridges. The mostly used are named VKR, TK Bro and TR Bro.

See www.vv.se

 

Banverket, Swedish Rail Administration issues rules and requirements for purchasing railway bridges. The rules and requirements are published in Vägverkets documents. 

 

Regarding certification of  materials and products the Swedish position is since a long time that certification is not  obligatory. It is always possible to use a product without certification but in combination with extended inspection and testing. The CE-mark is also not obligatory in Sweden.

 

Recent trends in rules are harmonization with Eurocodes and European standards and more use of certification of persons. 

 

Certification bodies, inspection bodies and laboratories which are active in the structural field

should be accredited according to relevant European standards which means SS-EN 45011 for product and processes, SS-EN ISO/IEC 17020 for inspection and SS-EN ISO/IEC 17025 for laboratories.

 

Accreditation is in Sweden performed exclusively by Swedac, Swedish Board for Accreditation and Conformity Assessment.

Technical Advisory Boards, Sector groups, CONSCERT and Standardization

The activities of Nordcert are rooted in Technical Advisory Boards where actors in the building sector are represented. Presently there are Technical Advisory Boards for

-   reinforcing steel and components

-   structural steel and components

-   ready mixed concrete

-   precast concrete elements

-   aggregates

-   certification of persons

 

Nordcert is active in the European Group of Notified Bodies for the CPD and its Sector Groups (SG) for following products:

SG 14  Reinforcing steel and prestressing steel for concrete

SG 17  Structural metallic products

SG 13  Precast concrete products

SG 02  Cement, concrete, mortar and aggregates

 

CONSCERT is the European group for Certification of Constructional Steel. Its members are notified certification bodies in the area of constructional steel. Nordcert is the Swedish member.

The aim of CONSCERT is to support coordination between certification bodies and to support activities which strengthen certification as a tool in the building process.

 

Nordcert is active in the Swedish standardization groups for reinforcing steel, structural steel, aggregates and concrete and follows the European standardization work.

Swedish product standards for reinforcing steel
Product
Standard
Name of standard
Bars and coils B500B and mesh made from B500B
SS-ENV 10080 + NAD
Steel for the reinforcement of concrete - Weldable ribbed reinforcing steel B500- Technical delivery conditions for bars, coils and welded fabric. + National application document for SS-ENV 10080.
Bars Ks 600S
SS 212511
Armeringsstång - Kamstång Ks 600S
Bars and coils Ps 500
SS 212519
Armeringsstång - Kalldragen och profilerad stång Ps 500
Bars and coils Ps 700
SS 212516
Armeringsstång - Kalldragen och profilerad stång Ps 700
Bars and coils Sds 500
SS 212518
Armeringsstång - Kalldragen slät stång Sds 500
Mesh Nps 500
SS 211845#
Armeringsnät Ns 500 och Nps 500
Mesh Nps 700
     "
     "
Prestressing wire
SS 212522
Slät riktad tråd av stål för spännarmering av betong
Prestressing strand 3615
SS 213615
Lina 3615 av stål för spännarmering av betong
Prestressing strand 3620
SS 213620
Lina 3620 av stål för spännarmering
Prestressing wire acc to prEN
prEN 10138-2
Prestressing steels - Part 2: Wire
Prestressing strand acc to prEN
prEN 10138-3
Prestressing steels - Part 3: Strand
Prestressing bar acc to prEN
prEN 10138-4
Prestressing steels - Part 4: Bar
Prestressing wire and strand acc to BS
BS 5896:1980 + A1
Specification for High tensile steel wire and strand for the prestressing of concrete
Seven-wire prestressing strand acc to ASTM
ASTM A416/416M
Standard Specification for Steel Strand, Uncoated Seven-Wire for Prestressed Concrete
2- and 3-wire prestressing strand acc to ASTM
ASTM A910/910M
Standard Specification for Uncoated, Weldless, 2- and 3-wire Steel Strand for Prestressed concrete

# Requirements of standards SS 219180 and SS 141386 respectively SS 141387 are also applicable

 

 

Work is proceeding on a new Swedish standard for weldable reinforcing steel which presumably will contain requirements for bars, coils, welded fabric and lattice girders.

Nordcerts Certification rules and Marking requirements

Nordcert certifies all reinforcing products and the processes distribution, cutting, bending, decoiling and welding to the SBS mark.

 

For the different products and processes the following certification procedures apply:

Product
Certification procedure
Bars and coils B500B and mesh made from B500B

SS-ENV 10080 + NAD + T1

(T1 is an interpretative document to SS-ENV 10080 + NAD)

Bars Ks 600S
As above + Special rules A1 + T2
Decoiled B500B
A3-rules + EN 10080:2005
Bars and coils Ps 500
A3-rules
Bars and coils Ps 700
     "
Bars and coils Sds 500
     "
Mesh Nps 500
     "
Mesh Nps 700
     "
Prestressing wire
A2-rules + prEN 10138-1
Prestressing strand
     "
Process
Certification procedure
Distribution
G-rules
Cutting and bending
A3-rules
Welding
A3-rules and SS-EN ISO 17660

All certified products shall be marked with the SBS mark:

 (Typeface Eurostyle Extended Two)

The mark shall be applied on the bundle label and on inspection certificates. The manufacturer shall deliver inspection certificates for bars, coils and prestressing steel.

Education and training requirements

Nordcert supports education in the structural building sector with the aim to increase competence and safety. Nordcert also requires that specific persons in companies which have a certificate can show their competence by a passed exam.

 

Example of required competences are:

Process
Person
Competence
Welding
Welding responsible person
TR-svarm or IWS with added competence for welding of reinforcing steel
Welding
Welder
Welding course approved by TR-svarm committee or other equivalent competence

Example of Nordcert certificate Click here