oSIST prEN 12350-11:2008
(Main)Testing fresh concrete - Part 11: Self-compacting concrete - Sieve segregation test
Testing fresh concrete - Part 11: Self-compacting concrete - Sieve segregation test
The document specifies the procedure for determining the sieve segregation resistance of self-compacting concrete.
Prüfung von Frischbeton - Teil 11: Selbstverdichtender Beton - Bestimmung der Sedimentationsstabilität im Siebversuch
Essai pour béton frais - Partie 11 : Béton auto-plaçant - Essai de stabilité au tamis
Preskušanje svežega betona - 11. del: Samozgoščevalni beton - Preskus segregacije s sitom
General Information
- Status
- Not Published
- Public Enquiry End Date
- 27-Feb-2008
- Technical Committee
- BBB - Concrete, reinforced concrete and prestressed concrete
- Current Stage
- 98 - Abandoned project (Adopted Project)
- Start Date
- 20-Dec-2010
- Due Date
- 25-Dec-2010
- Completion Date
- 20-Dec-2010
- Directive
- 89/106/EEC - Construction products
Relations
- Effective Date
- 01-Dec-2010
Overview
The oSIST prEN 12350-11:2008 standard, titled Testing fresh concrete - Part 11: Self-compacting concrete - Sieve segregation test, is a European Standard developed by CEN (European Committee for Standardization). This standard prescribes a specific procedure to determine the sieve segregation resistance of self-compacting concrete (SCC). Ensuring concrete's resistance to segregation is critical for maintaining concrete homogeneity, quality, and durability in construction projects.
Self-compacting concrete is valued for its ability to flow and compact without mechanical vibration, thus improving construction efficiency and working conditions. The sieve segregation test plays a vital role in assessing SCC's ability to resist separation of its components during placement, which is essential for achieving consistent performance in situ.
Key Topics
Purpose: Measure segregation resistance of fresh self-compacting concrete by quantifying the portion of concrete particles passing through a standardized sieve.
Scope: Applicable exclusively to SCC without fibers or lightweight aggregates.
Test Principle: Concrete is sampled, allowed to stand for 15 minutes, then a portion is poured onto a 5 mm square aperture sieve. After 2 minutes, the mass of concrete material passing through the sieve is measured to calculate the segregation ratio.
Apparatus Required:
- Perforated plate sieve with 5 mm square apertures per ISO 3310-2.
- Accurate balance with at least 10 kg capacity and 20 g accuracy.
- Non-absorbent rigid sample container (minimum 200 mm diameter, 11 liters capacity).
- Timer and thermometer with accuracy to 1 second and 1 °C respectively.
Procedure Highlights:
- Concrete temperature recorded at test start.
- Concrete sample placed in container and covered to prevent evaporation.
- After 15 minutes of rest, any bleed water is noted.
- (4.8 ± 0.2) kg of concrete is poured on the sieve from a height of about 0.5 meters.
- Concrete is left on sieve for 2 minutes before the sieve is carefully removed vertically.
- Material passing through is weighed to determine segregation.
Test Result Calculation:
[ \text{Segregated Portion (SR, %)} = \frac{(m - m_p) \times 100}{m_c} ]
where
- ( m ) = mass of sieve receiver + passed material
- ( m_p ) = mass of sieve receiver
- ( m_c ) = initial mass of concrete on sieve.
Precision: Repeatability and reproducibility values provided, ensuring reliable inter-laboratory test comparisons.
Applications
- Quality Control in Construction: Ensures self-compacting concrete mix designs maintain their integrity during placement, preventing weak spots caused by segregation.
- Research & Development: Helps in evaluating new SCC compositions and admixtures for segregation resistance.
- Compliance Testing: Assists contractors and suppliers in complying with regulations or client specifications related to SCC performance.
- Performance Verification: Validates SCC’s suitability for complex forms and highly reinforced sections where vibration is impractical or undesirable.
- Environmental and Safety Benefits: Supports cleaner, quieter, and safer construction practices by reducing reliance on mechanical vibration.
Related Standards
This test is part of the broader EN 12350 series covering fresh concrete testing methods, including:
- EN 12350-1: Sampling of fresh concrete
- EN 12350-8: SCC Slump-flow test
- EN 12350-9: SCC V-funnel test
- EN 12350-10: SCC L-box test
- EN 12350-12: SCC J-ring test
Additionally relevant normative references include:
- ISO 3310-2: Specification for perforated plate test sieves
- ISO 5725: Guidelines for precision of test methods and inter-laboratory testing
Conclusion
The oSIST prEN 12350-11:2008 sieve segregation test is a precise, standardized technique assessing the resistance of self-compacting concrete to segregation. Its practical implementation helps construction professionals achieve homogeneous, durable concrete structures with improved onsite performance. Adherence to this standard supports enhanced quality assurance and innovation in SCC technology, fostering safer and more sustainable building practices.
Frequently Asked Questions
oSIST prEN 12350-11:2008 is a draft published by the Slovenian Institute for Standardization (SIST). Its full title is "Testing fresh concrete - Part 11: Self-compacting concrete - Sieve segregation test". This standard covers: The document specifies the procedure for determining the sieve segregation resistance of self-compacting concrete.
The document specifies the procedure for determining the sieve segregation resistance of self-compacting concrete.
oSIST prEN 12350-11:2008 is classified under the following ICS (International Classification for Standards) categories: 91.100.30 - Concrete and concrete products. The ICS classification helps identify the subject area and facilitates finding related standards.
oSIST prEN 12350-11:2008 has the following relationships with other standards: It is inter standard links to SIST EN 12350-11:2010. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
oSIST prEN 12350-11:2008 is associated with the following European legislation: EU Directives/Regulations: 305/2011, 89/106/EEC. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
oSIST prEN 12350-11:2008 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2008
63UHVNXãDQMHVYHåHJDEHWRQDGHO 6DPR]JRãþHYDOQLEHWRQ3UHVNXV
VHJUHJDFLMHVVLWRP
Testing fresh concrete - Part 11: Self-compacting concrete - Sieve segregation test
Prüfung von Frischbeton - Teil 11: Selbstverdichtender Beton - Bestimmung der
Sedimentationsstabilität im Siebversuch
Essai pour béton frais - Partie 11 : Béton auto-plaçant - Essai de stabilité au tamis
Ta slovenski standard je istoveten z: prEN 12350-11
ICS:
91.100.30
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
DRAFT
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2007
ICS 91.100.30
English Version
Testing fresh concrete - Part 11: Self-compacting concrete -
Sieve segregation test
Essai pour béton frais - Partie 11 : Béton auto-plaçant - Prüfung von Frischbeton - Teil 11: Selbstverdichtender
Essai de stabilité au tamis Beton - Bestimmung der Sedimentationsstabilität im
Siebversuch
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 104.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other language
made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the
same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2007 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 12350-11:2007: E
worldwide for CEN national Members.
Contents Page
Foreword.3
1 Scope .4
2 Normative references .4
3 Principle.4
4 Apparatus .4
4.1 Perforated plate sieve .4
4.2 Balance .4
4.3 Sample container.4
4.4 Timer .5
4.5 Thermometer.5
5 Test sample .5
6 Procedure .5
7 Test result.6
8 Test report .6
9 Precision.7
Foreword
This document (prEN 12350-11:2007) has been prepared by Technical Committee CEN/TC 104 “Concrete
and related products”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This standard is based on the results from the EU-project “Testing-SCC” under the 5th Frame Programme
(GRD2-2000-30024/G6RD-CT-2001-00580).
Owing to its significant advantages in the improvement of construction quality and working environment, self-
compacting concrete (SCC) has been more widely accepted by the construction owners. The use of SCC in
practical concrete construction is stably increasing. Since SCC has to give satisfactory in-situ properties
(perfect filling of the mould and embedment of the reinforcement, homogeneity and full compaction) without
vibration, the proper methods for testing the workability of fresh SCC are very important. The workability of
fresh SCC should basically include three key properties: filling ability, passing ability and resistance to
segregation. It is desirable, especially in the case of new constituents or new concrete compositions, to test
the workability of fresh SCC before casting in place.
A number of test methods are available for testing fresh SCC. Most of the commonly used test methods were
evaluated in the recently closed EU-project “Testing-SCC” under the 5th Frame Programme (GRD2-2000-
30024/G6RD-CT-2001-00580). According to the results from this EU project, it seems no single test method
...
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