Tensile test, geometry and linear mass of a cold rolled concrete reinforcing steel

Presentation for participants

Reference of the ILC:

G21CRS

   

References of test methods:

ISO 15630-1

References of test methods for which the ILC can indirectly provide an assessment of performance

ASTM A370  ASTM A615  ASTM A706

 

These may be superseded standards, which some of the reference standards may have replaced, or EN or ASTM or ISO standards that are close but not exactly equivalent to the reference standards.

   

Frequency:

Each year

                       

Main characteristics:

Rm, Rp0,2, A5d, Agt, hmax, c, fR, LM (Linear mass)

Other characteristics:

Rt0,5, Z, E, h¼-h¾, Σei, β, b, GP (Percentage of failures in the grips of the tensile machine)

 

Caution: The number of determinations may be low for the secundary characteristics, what may make inefficient the comparison between laboratories

   

Determination of the assigned values (“true values” for each characteristic):

By statistical computation of the totality of the results with possible selection on competence criteria (accreditation, validation by a reference body, quantity of tests performed in the year), test to detect possible collusion, merging of results not obtained in reproductibility conditions, suppression of technically unvalid results.

   

Type of statistical computation:

For numerical results, the statistical computation will provide an assigned value with its attached uncertainty, values of standard deviations for repeatability and reproductibility, limits of alerts for bias and repeatability of the participant, indiviual values for uncertainty of results of participants.

Number of products submitted to tests:

1

Number of samples per participation:

6

Max number of operators per participation:

1 (it is necessary to order as many participations as there are participating test operators)

Product submitted to tests:

Cold rolled reinforcing steel

Type of samples:

Bars

Approximate dimensions of samples:

2x Ø5-10x550 mm

Specific preparation to be performed by the participant:

None (other than possible necessity to adapt dimensions of the test specimen to the equipment of the participant)

   

Time schedule:

 

Opening date of registrations

15/09/2020

Registration deadline

15/03/2021

Date of shipment of samples

05/06/2021

Start of the tests

10/06/2021

Deadline for carrying out the tests and providing the results

31/08/2021

Date of delivery of reports

15/10/2021

Note: After the deadline, registrations are only accepted within the limit of availability of samples

                       

Price (€)

350

Price if online payment (€)

280

Approximate weight (kg)

5